Magnum Energy MPSL-30D, MPSL-60S, MPSH-30D, MPDH-30D User Manual

Magnum Panels (MP) AC/DC Distribution Enclosures

Owner’s Manual

Disclaimer of Liability

The

use of this manual and the conditions or methods of installation, operation, use and maintenance of the Magnum Panel is beyond the control of Magnum Energy, Inc. Therefore, this company does not assume responsibility and expressly disclaims liability for loss, damage, or expense, whether direct, indirect, consequential or incidental, arising out of or anyway connected with such installation, operation, use, or maintenance.

Note as well that while every precaution has been taken to ensure the accuracy of the contents of this manual, the speciﬁ cations and product functionality may change without notice. Magnum Energy, Inc. assumes no responsibility for errors or omissions.

Restrictions on Use

Magnum Energy, Inc. does not recommend the use of any o life saving, or other medical equipment or devices designated as “critical” by the U.S. FDA where failure or malfunction of the Magnum Energy product can be reasonably expected to cause failure of the life support device, or to signiﬁ cantly affect its safety or effectiveness. Using Magnum Energy products with this particular equipment is at your own risk.

f its products with life support systems,

odify this document is prohibited unless express written permission from Magnum Energy, Inc.

is provided.

Contact Information

Magnum Energy, Inc. 2211 West Casino Rd. Everett, WA 98204 Phone: 425-353-8833 F

ax: 425-353-8390

Web: www.MagnumEnergy.com

Statement of Appreciation

From all of us at Magnum Energy -

Thank you for purchasing this Magnum Panel (MP).

understand that you have many purchasing options in the marketplace, and are pleased that you have decided on a Magnum Energy product. This MP enclosure was proudly designed, assembled and tested in the United States at our Everett, Washington facility.

At Magnum, we are committed to providing you with quality products and services; we hope that your experience with us is pleasant and professional.

Page i

Magnum Energy® is a registered trademark of Magnum Energy, Inc.

Table of Contents

1.0 Safety Information

1.1 Safety Symbols .................................................................................... v

1.2 General Safety ..................................................................................... v

1.3 Battery Safety ......................................................................................vi

................................................................... v

2.0 Introduction ............................................................................. 1

2.1 MP Series Overview .............................................................................. 1

2.2 Regulatory Compliance .......................................................................... 6

2.3 MP External Components ....................................................................... 7

2.4 MP Internal Components ........................................................................ 9

3.0 Installation ............................................................................ 17

3.1 Pre-Installation ................................................................................... 17

3.2 Location ............................................................................................ 22

3.3 Preparing the MP Enclosure and Inverter ................................................ 25

3.4 Mounting the MP/Inverter System ......................................................... 31

3.5 Wiring the MP Enclosures ..................................................................... 36

3.6 AC Wiring .......................................................................................... 38

3.7 DC Wiring .......................................................................................... 44

3.8 Wiring Accessories .............................................................................. 51

3.9 Removing the NEUTRAL-GROUND Wire .................................................. 53

3.10 Removing the NEGATIVE-GROUND Busbar ............................................. 54

3.11 MP/Inverter System Grounding ............................................................. 55

3.12 Installation Checklist ........................................................................... 59

3.13 Functional Test ................................................................................... 61

3.14 Attaching Front Covers ........................................................................ 66

3.15 Master/Slave Identiﬁ cation Label Set ..................................................... 67

4.0 Wiring Diagrams .................................................................... 68

5.0 Operation ............................................................................... 93

5.1 Inverter DC Disconnect Breaker ............................................................ 94

5.2 Inverter AC Input Breaker .................................................................... 94

5.3 Bypass Switch Assembly ...................................................................... 94

Appendix A - Misc. Info and Optional Equipment/Accessories ........ 97

A1 Installing the Charge Controller Bracket ................................................. 97

A2 Installing a Battery Monitor .................................................................100

A3 Inverter Hood Info .............................................................................102

A4 Router Bracket Info ...........................................................................102

A5 Knockout Plate ..................................................................................104

A6 Installing Optional DC Breakers ...........................................................105

A7 Installing Optional AC Load Breakers ....................................................107

A8 Aligning Front Breaker Face Plate .........................................................108

A9 Optional Router Front Top Cover ..........................................................109

A10 Installing Lightning Arrestors ...............................................................110

Appendix B - Warranty and Service .............................................. 112

B1 Limited Warranty ...............................................................................112

B2 How to Receive Repair Service .............................................................112

Page ii

List of Figures

Figure 2-1a, MPSL-30D as Shipped ................................................................................................

Figure 2-1b, MPSL-30D with Field Installed Options ..........................................................................2

Figure 2-2a, MPSL-60S as Shipped .................................................................................................3

Figure 2-2b, MPSL-60S with Field Installed Options ..........................................................................3

Figure 2-3a, MPSH-30D as Shipped ................................................................................................4

Figure 2-3b, MPSH-30D with Field Installed Options .........................................................................4

Figure 2-4a, MPDH-30D as Shipped ...............................................................................................5

Figure 2-4b, MPDH-30D with Field Installed Options .........................................................................5

Figure 2-5, MPSL and MPSH External Components ...........................................................................7

Figure 2-6, MPDH External Components .........................................................................................8

Figure 2-7, MPSL-30D Internal Components .................................................................................. 12

Figure 2-8, MPSL-60S Internal Components .................................................................................. 13

Figure 2-9, MPSH-30D Internal Components ................................................................................. 14

Figure 2-10a, MPDH-30D (AC Side) Internal Components ............................................................... 15

Figure 2-10b, MPDH-30D (DC Side) Internal Components ............................................................... 16

Figure 3-1, Parts Included - MPSL and MPSH Models ...................................................................... 18

Figure 3-2, Parts Included - MPDH Models ..................................................................................... 18

Figure 3-3, MP Series Simpliﬁ ed Parallel-Stacked Installation Diagram .............................................. 20

Figure 3-4, MP Series Simpliﬁ ed Series-Stacked Installation Diagram ............................................... 21

Figure 3-5, System Dimensions (Single Enclosure) ......................................................................... 23

Figure 3-6, System Dimensions (Dual Enclosure) ........................................................................... 24

Figure 3-7, Front Cover Screws to Remove .................................................................................... 25

Figure 3-8, Removing Front Cover - Single Enclosure...................................................................... 26

Figure 3-9, Removing Front Covers - Dual Enclosure ...................................................................... 26

Figure 3-10, Conduit/Wire Routing ............................................................................................... 27

Figure 3-11, Removing Knockouts ................................................................................................ 28

Figure 3-12, Connect and Separate Inverter AC Wires .................................................................... 28

Figure 3-13, MPSL/MPSH Dimensions and Knockout Location/Sizes .................................................. 29

Figure 3-14, MPDH Dimensions and Knockout Location/Sizes ........................................................... 30

Figure 3-15a, Mounting the MP Single Enclosure ............................................................................ 31

Figure 3-15b, Mounting Inverter - MP Single Enclosure ................................................................... 32

Figure 3-15c, Mounting Inverter Hood - MP Single Enclosure ........................................................... 32

Figure 3-16a, Mounting the MP Dual Enclosure (DC Side) ................................................................ 33

Figure 3-16b, Mounting the MP Dual Enclosure (AC Side) ................................................................ 33

Figure 3-16c, Connecting the Two Sides Together - MP Dual Enclosure .............................................. 34

Figure 3-16d, Mounting First Inverter - MP Dual Enclosure .............................................................. 34

Figure 3-16e, Mounting Second Inverter - MP Dual Enclosure .......................................................... 35

Figure 3-16f, Mounting the Inverter Hoods - MP Dual Enclosure ....................................................... 35

Figure 3-17, MPSL-30D and MPSH-30D AC Wiring Connections ........................................................ 41

Figure 3-18, MPSL-60S AC Wiring Connections .............................................................................. 42

Figure 3-19, MPDH-30D AC Wiring Connections ............................................................................. 43

Figure 3-20, DC Hardware Connections ........................................................................................ 46

Figure 3-21, DC Wiring Connection Points for MPSL Models ............................................................. 48

Figure 3-22, DC Wiring Connection Points for MPSH-30D ................................................................. 49

Figure 3-23, DC Wiring Connection Points for MPDH-30D (DC Side) .................................................. 50

Figure 3-24, REMOTE Communication Cable (300V Rated) .............................................................. 51

Figure 3-25, NETWORK Communication Cable (300V Rated) ............................................................. 51

Figure 3-26, Extension Cable (300V Rated) .................................................................................... 51

Figure 3-27, Accessory Wiring Using 300 Volt Communications Cables .............................................. 52

Figure 3-28, Removing the NEUTRAL-GROUND Wire ....................................................................... 53

Figure 3-29, Removing the NEGATIVE-GROUND Busbar .................................................................. 54

Figure 3-30, Grounding System for Inverter with MP Enclosure ........................................................ 55

Figure 3-31, Single Connection to DC Ground Rod (Method 1) ......................................................... 56

Figure 3-32, Multiple Connections to DC Ground Rod (Method 2) ...................................................... 57

Figure

3-33, Multiple Connections to DC Ground Rod (Method 3) ...................................................... 57

Figure 3-34, DC V Figure 3-35, DC V

Figure 3-36, AC Voltage Checks - MPSL-30D and MPSH-30D Models ................................................. 63

Figure 3-37, AC Voltage Checks - MPSL-60S Models ....................................................................... 64

Figure 3-38, AC Voltage Checks - MPDH-30D (AC Side) Models ........................................................ 65

Figure 3-39, Attaching Front Cover - MPSL/MPSH Models ................................................................ 66

oltage Checks - Single Enclosures

oltage Checks - Dual Enclosures (DC Side) ........................................................... 61

.......................................................................

Page iii

Figure 3-40, Attaching Front Covers - MPDH Models ....................................................................... 66

Figure 3-41, Applying Master/Slave Identiﬁ cation Labels ................................................................. 67

Figure 4-1, Inverter AC Input and Output Wiring Diagram - MS4024................................................. 69

Figure 4-2, Inverter AC Input and Output Wiring Diagram - MS-PAE Series ........................................ 70

Figure 4-3a, MPSL-30D Inverter AC Wiring .................................................................................... 71

Figure 4-3b, MPSL-30D External AC Wiring .................................................................................... 72

Figure 4-3c, MPSL-30D DC Wiring ................................................................................................ 73

Figure 4-3d, MPSL-30D Communications Wiring ............................................................................. 74

Figure 4-3e, MPSL-30D Full System Wiring Diagram ....................................................................... 75

Figure 4-4a, MPSL-60S Inverter AC Wiring .................................................................................... 76

Figure 4-4b, MPSL-60S External AC Wiring .................................................................................... 77

Figure 4-4c, MPSL-60S DC Wiring ................................................................................................ 78

Figure 4-4d, MPSL-60S Communications Wiring ............................................................................. 79

Figure 4-4e, MPSL-60S Full System Wiring Diagram ....................................................................... 80

Figure 4-5a, MPSH-30D Inverter AC Wiring ................................................................................... 81

Figure 4-5b, MPSH-30D External AC Wiring ................................................................................... 82

Figure 4-5c, MPSH-30D DC Wiring ............................................................................................... 83

Figure 4-5d, MPSH-30D Communications Wiring ............................................................................ 84

Figure 4-5e, MPSH-30D Full System Wiring Diagram ...................................................................... 85

Figure 4-6a, MPDH-30D Inverter AC Wiring ................................................................................... 86

Figure 4-6b, MPDH-30D External AC Wiring ................................................................................... 87

Figure 4-6c, MPDH-30D Inverter DC Wiring ................................................................................... 88

Figure 4-6d, MPDH-30D External DC Wiring .................................................................................. 89

Figure 4-6e, MPDH-30D Communications Wiring ............................................................................ 90

Figure 4-6f.1, MPDH-30D Full System Wiring Diagram (AC Side) ...................................................... 91

Figure 4-6f.2, MPDH-30D Full System Wiring Diagram (DC Side) ...................................................... 92

Figure 5-1, MP Functional Diagram............................................................................................... 93

Figure 5-2, 60A Bypass Switch Operation (MPSL-30D and MPSL-60S) ............................................... 95

Figure 5-3, 125A Bypass Switch Operation (MPSH-30D and MPDH-30D) ............................................ 96

Figure A1-1, Charge Controller Bracket - Physical Dimensions.......................................................... 97

Figure A1-2, Charge Controller Bracket Mounting Holes .................................................................. 98

Figure A1-3, Holes Used to Mount Bracket on MP Enclosure ............................................................. 99

Figure A2-1, Accessing the DC Shunt .......................................................................................... 100

Figure A2-2, Wiring the ME-BMK-NS ............................................................................................ 100

Figure A2-3, Mounting the Sense Module ..................................................................................... 101

Figure A2-4, Close-up of Wiring the Sense Module and DC Shunt .................................................... 101

Figure A3-1, Inverter Hood Dimensions ....................................................................................... 102

Figure A4-1, Router Bracket Dimensions ...................................................................................... 102

Figure A4-2, Router Bracket Kit .................................................................................................. 103

Figure A4-3, Mounting the Router Bracket and Router.................................................................... 103

Figure A5-1, Attaching Knockout Plate ......................................................................................... 104

Figure A5-2, Knockout Plate Dimensions and Knockouts ................................................................. 104

Figure A6-1, Installing DIN Rail-Mounted DC Breakers ................................................................... 105

Figure A6-2, Installing Back-Mounted DC Breakers ........................................................................ 106

Figure A6-3, Wiring DC Breakers to Controller/PV Array ................................................................. 106

Figure A7-1, Installing AC Load Breakers - Single MP Enclosure ...................................................... 107

Figure A7-2, Installing AC Load Breakers - Dual MP Enclosure ........................................................ 107

Figure A8-1, Removing the Front Breaker Face Plate ..................................................................... 108

Figure A9-1, Router Front Top Cover ........................................................................................... 109

Figure A10-1, Installing Lightning Arrestor on MP Enclosure ........................................................... 110

Figure A10-2, Wiring Lightning Arrestor to MP Enclosure ................................................................ 111

List of Tables

Table 3-1, T

Table 3-2, Torque Values for 3/8-16 Bolts ..................................................................................... 37

Table 3-3, Torque Values for Terminal Screws on AC Input Breakers ................................................. 37

Table 3-4, MP AC Wire Kits .......................................................................................................... 39

Table 3-5, Minimum AC Wire Size for AC Output Breaker ................................................................. 40

Table 3-6, AC Grounding Electrode Conductor Sizing ...................................................................... 56

Table 3-7, Equipment Grounding Conductor Sizing ......................................................................... 58

Table 4-1, MP Wiring Diagrams .................................................................................................... 68

Table A-1, Mounting Holes Used for Charge Controllers ................................................................... 97

orque Values for Dual Hole Busbars ............................................................................. 37

Page iv

1.0 Safety Information

IMPORTANT SAFETY INSTRUCTIONS

his manual contains important safety instructions that

T and operation of this product. Before using the Magnum Panel (MP), read all instructions and cautionary markings on: (1) the MP enclosure, (2) the inverter/charger, and (3) the batteries, as well as the individual manuals provided for each component of the system.

These installation instructions are for use by qualiﬁ ed personnel only. Do not perform any installation or servicing other than that speciﬁ ed in this owner’s manual unless qualiﬁ ed to do so. Incorrect installation or servicing may result in a risk of electric shock, ﬁ re, or other safety hazard.

must be followed during the installation

1.1 Safety Symbols

The following safety symbols have been placed throughout this manual to indicate dangerous conditions and important safety instructions.

WARNING: This symbol physical harm to the user.

CAUTION: This symbol indicates that failure to take a speciﬁ ed action could result in damage to the equipment.

Info: This symbol indicates information that emphasizes or supplements important points of the main text.

indicates that failure to take a speciﬁ ed action could result in

1.2 General Safety

• All electrical work must be performed in accordance with local and national electrical codes.

This product is designed for indoor/compartment installation. It must not be exposed to rain,

• snow, moisture or liquids of any type.

• Use insulated tools to reduce the chance of electrical shock or accidental short circuits.

• Remove all jewelry such as rings, watches, bracelets, etc., when installing or performing maintenance on the inverter.

• Both AC and DC overcurrent protection must be provided as part of the installation.

• Use Class 1 wiring methods for ﬁ eld wiring connections to terminals of a Class 2 circuit.

• Listed or labeled equipment shall be installed and used in accordance with any instructions included in the listing or labeling.

• To reduce risk of electric shock, disconnect all wiring before attempting any maintenance or cleaning. Turning off the inverter will not reduce this risk, the inverter bypass must be used or the panel should be totally disconnected from all sources.

• All wiring must have a minimum rating of 150V, 75°C when using 120V AC inverters; or 300V, 75°C when using 120/240V AC inverters.

• AC wiring must be no less than 10 AWG (5.3 mm2) gauge copper wire.

• Battery cables should be no less than #4/0 AWG unless fused close to the battery bank for smaller sized cables.

• Crimped and sealed copper ring terminal lugs with a 3/8” hole should be used to connect to the DC terminals inside the MP enclosure. Soldered cable lugs are also acceptable.

• Torque all AC wiring connections and DC cable connections to the required torque values.

READ AND SAVE THESE INSTRUCTIONS

1.0 Safety Information

1.3

Battery Safety

IMPORTANT BATTERY SAFETY INSTRUCTIONS

• Be very careful when working around batteries, they can produce extremely high currents if short-circuited. Read inverter and batteries.

• Wear eye protection such as safety glasses when working with batteries.

• Remove all jewelry such as rings, watches, bracelets, etc., when installing or performing maintenance on the batteries.

• Never work alone. Always have someone near you when working around batteries.

• Use proper lifting techniques when working with batteries.

• Never use old or untested batteries. Check each battery’s label for age, type, and date code to ensure all batteries are identical.

• Batteries are sensitive to changes in temperature. Always install batteries in a stable environment.

• Install batteries in a well ventilated area. Batteries can produce explosive gasses. For compartment or enclosure installations, always vent batteries to the outside.

• Provide at least one inch of air space between batteries to provide optimum cooling.

• Never smoke when in the vicinity of batteries.

• To prevent a spark at the battery and reduce the chance of explosion, always connect the cables to the batteries ﬁ rst. Then connect the cables to the MP enclosure/inverter system.

• Use insulated tools at all times.

• Always verify proper polarity and voltage before connecting the batteries to the MP enclosure/ inverter system.

• To reduce the chance of ﬁ re or explosion, do not allow the battery terminals to be shortcircuited.

• In the event of accidental exposure to battery acid, wash thoroughly with soap and water. In the event of exposure to the eyes, ﬂ ood them for at least 15 minutes with running water and seek immediate medical attention.

• Recycle old batteries.

• Be extra cautious to reduce the risk of dropping a metal tool onto batteries. It could short-circuit the batteries or other electrical parts, resulting in sparks that could cause a ﬁ re or an explosion.

the battery supplier’s precautions before installing and connecting the

• Cover the terminals to prevent accidental shorting.

READ AND SAVE THESE INSTRUCTIONS

Page vi

2.0 Introduction

The Magnum P dardize inverter installations and allow for the ability to expand the inverter system in the future.

Speciﬁ cally designed for multiple inverter applications, the MP enclosures ensure safety and reliability by combining all of the major components required for a renewable energy system — inverter/ battery disconnect, AC overcurrent protection, grounding connections, and a full-system bypass switch — into an easy to install pre-wired enclosure. The modular design of the MP enclosure with the Magnum Energy inverter allows it to be UPS shipped and easily assembled on site.

Installing an inverter system is now as simple as mounting the MP enclosure, installing the inverters, connecting the battery bank, and if needed, bringing in AC power from a generator or the utility grid. Now all of the inverter’s required AC and DC disconnects and wire connection points are all together, and integrated in the self-contained MP enclosure.

anels (MP) are part of a new line of enclosures from Magnum Energy that stan-

2.1 MP Series Overview

The MP enclosures are available in four basic conﬁ gurations: the MPSL-30D, MPSH-30D, and MPDH-30D are designed to be used with the Magnum MS-PAE inverter models when stacked in parallel; and the MPSL-60S, which is designed for use with two MS4024 inverters when stacked in series. These conﬁ gurations provide different maximum power abilities to meet present and future requirements.

2.1.1 Models

MPSL-30D (Magnum Panel,

MPSL-60S (Magnum Panel, Single Enclosure, Low Capacity, Single-pole 60A AC input breaker)

MPSH-30D (Magnum Panel, Single Enclosure, High Capacity, Double-pole 30A AC input breakers)

MPDH-30D (Magnum Panel, Dual Enclosure, High Capacity, Double-pole 30A AC input breakers)

Single Enclosure, Low Capacity, Double-pole 30A AC input breakers)

2.1.2 Standard Features

The main components and features for the MP Series enclosures are:

• Standard conﬁ gur

• Enclosure is steel construction with a durable, white powder coat ﬁ nish to help prevent corrosion

• Built-in, pre-wired, full system bypass switch for inverter isolation/battery maintenance

• Front-mounted AC and DC breakers for quick and easy operation

• AC, DC, and Ground busbars with set-screw type compression terminals (no lugs required)

• Full system capacity shunt (500 or 1000 DCA), allows easy connection to battery monitor

• Enclosure and components are certiﬁ ed for indoor use to UL/CSA standards

• DC negative and ground busbars (negative can be isolated if PV-GFP device installed)

• Battery positive busbar for DC loads and PV arrays included (not available on MPSH-30D)

• Space available to add DC load/disconnect breakers (not available on MPSH-30D)

• Standalone top plate provided to allow other (non-Magnum) inverter installations

• Knockouts for inverter and battery cables, PV in/out, DC breakers

• Data cables with 300-volt rated insulation provided to allow 240V AC inverter installations

• Easy accessibility for ﬁ eld installation/wiring of additional breakers/components

• Pre-wired AC over-current circuit breaker protection to the inverter’s input

• Space for additional AC breakers (depends on enclosure conﬁ guration)

• Inverter DC disconnect with inverter-to-breaker battery cables included

• Plated copper busbars included for up to six additional battery positive and negative circuits

ations allow future expansion using MPX enclosures for increased power

2.0 Introduction

MPSL-30D

MPXS-30D-L

MS-PAE

NVERTER

MPSL-30D

BP-D

ME-RTR

MS-PAE

NVERTER

MPXS-30D-L

MPSL-30D

MPXS-30D-R

MPSL-30D

MPXS-30D-R

MS-PAE

NVERTER

BP-D

ME-RTR

MS-PAE

INVERTER

MPSL-30D

2.1.3 Individual Features

MPS

L-30D (Magnum Panel, Single Enclosure, Low Capacity, Double 30A AC Inverter Input Breaker)

Capability for one MS-PAE Series inverter (expandable to a maximum of two MS-PAE Series inverters stacked in parallel using an optional MPX extension box).

MPSL-30D (as shipped) Includes:

• D

30A AC Inverter Input

Breaker (x1)

• 250A DC Disconnect (x1)

• Inverter AC Input/ Output wires

• Data cables rated for 120/240V AC circuits

Figure 2-1a, MPSL-30D as Shipped

• D60A AC System Bypass

• 500A/50mV DC Shunt

• Inverter Hood (x1)

• Router Bracket

MPSL-30D

with MPXS-30D-L

Includes:

30A AC Inverter Input Breakers (x2) • D60A AC System Bypass

• D

• 250A DC Disconnects (x2) • 500A/50mV DC Shunt

• Inverter AC Input/Output wires • Inverter Hoods (x2)

• Data cables rated for 120/240V AC circuits • Router Bracket

Field Installed Options Shown (not included):

• PAE Series parallel-stack inverters (x2) • BP-D Dual Mounting Backplate

• ME-RTR R

outer

(MPX - Left Side)

with MPXS-30D-R (MPX - Right Side)

MPSL-30D

Figure 2-1b, MPSL-30D with Field Installed Options

Page 2

2.0 Introduction

MPSL-30D

MPXS-30D-L

MS4024

INVERTER

MPSL-60S

BP-D

MS4024

INVERTER

MPXS-60S-L

ME-ARC

MPSL-30D

MPXS-30D-R

MPSL-60S

MPXS-60S-R

MS4024

NVERTER

BP-D

MS4024

NVERTER

ME-ARC

MPSL-30D

MPSL-60S (Ma

Capability for one MS4024 inverter (expandable to two MS4024’s stacked in series using an optional MPX extension box)

gnum Panel, Single Enclosure, Low Capacity, Single 60A AC Inverter Input Breaker)

MPSL-60S Includes:

S60A AC Inverter Input

• Breaker (x1)

• 250A DC Disconnect (x1)

• Inverter AC Input/ Output wires

• Data cables rated for 120/240V AC circuits

(as shipped)

• D60A AC System Bypass

• 500A/50mV DC Shunt

• Inverter Hood (x1)

• Router and Charge Controller Bracket

Figure 2-2a, MPSL-60S as Shipped

MPSL-60S

with MPXS-60S-L

Includes:

60A AC Inverter Input Breakers (x2) • D60A AC System Bypass

• S

• 250A DC Disconnects (x2) • 500A/50mV DC Shunt

• Inverter AC Input/Output wires • Inverter Hoods (x2)

• Data cables rated for 120/240V AC circuits • Series Stacking Cable

Field Installed Options Shown (not included):

• MS4024 series-stack inverters (x2) • BP-D Dual Mounting Backplate

• ME-ARC Adv

anced Remotes (x2)

(MPX - Left Side)

Figure 2-2b, MPSL-60S with Field Installed Options

MPSL-60S

with MPXS-60S-R (MPX - Right Side)

2.0 Introduction

MPXS-30D-L

MPXS-30D-R

MPSH-30D

MS-PAE

NVERTER

MPXS-30D-L

BP-S

ME-RTR

MS-PAE

NVERTER

MPXS-30D-R

BP-D

MPSH-30D

MS-PAE

NVERTER

MPSH-30D

MPSH-30D (M

Capability for one MS-PAE Series inverter (expandable to a maximum of three MS-PAE Series inverters stacked in parallel using optional MPX extension boxes)

agnum Panel, Single Enclosure, High Capacity, Double 30A AC Inverter Input Breaker)

MPSH-30D (as shipped) Includes:

• D

30A AC Inverter Input

Breaker (x1)

• 250A DC Disconnect (x1)

• Inverter AC Input/ Output wires

• Data cables rated for 120/240V AC circuits

• D125A AC System Bypass

• 1000A/100mV DC Shunt

• Inverter Hood (x1)

• Router and Charge Controller Bracket

Figure 2-3a, MPSH-30D as Shipped

MPSH-30D with MPXS-30D-L (MPX - Left Side) and MPSX-30D-R (MPX - Right Side)

Includes:

30A AC Inverter Input Breakers (x3) • D125A AC System Bypass

• D

• 250A DC Disconnects (x3) • 1000A/100mV DC Shunt

• Inverter AC Input/Output wires • Inverter Hoods (x3)

• Data cables rated for 120/240V AC circuits • Router and Controller Bracket

Field Installed Options Shown (not included):

• PAE Series parallel-stack inverters (x3) • BP-S Single Mounting Backplate

• ME-RTR R

outer • BP-D Dual Mounting Backplate

Figure 2-3b, MPSH-30D with Field Installed Options

Page 4

2.0 Introduction

MPXD-30D-L

MPXD-30D-R

MPDH-30D

MS-PAE

NVERTER

MPXD-30D-L

BP-D

ME-RTR

MS-PAE

NVERTER

MS-PAE

NVERTER

MS-PAE

NVERTER

MPXD-30D-R

BP-D

MPDH-30D

AC Side

DC Side

MPDH-30D

MPDH-30D (M

Capability for one or two MS-PAE Series inverters (expandable to a maximum of four MS-PAE Series inverters stacked in parallel using optional MPX extensions).

agnum Panel, Dual Enclosure, High Capacity, Double 30A AC Inverter Input Breakers)

MPDH-30D (as shipped) Includes:

• D

30A AC Inverter Input

Breakers (x2)

• 250A DC Disconnects (x2)

• Inverter AC Input/ Output wires

• Data cables rated for 120/240V AC circuits

• D125A AC System Bypass

• 1000A/100mV DC Shunt

• Inverter Hoods (x2)

• Router and Charge Controller Bracket

Figure 2-4a, MPDH-30D as Shipped

MPDH-30D with MPXD-30D-L (MPX - Left Side) and MPXD-30D-R (MPX - Right Side)

Includes:

30A AC Inverter Input Breakers (x4) • D125A AC System Bypass

• D

• 250A DC Disconnects (x4) • 1000A/100mV DC Shunt

• Inverter AC Input/Output wires • Inverter Hoods (x4)

• Data cables rated for 120/240V AC circuits • Router and Controller Bracket

Field Installed Options Shown (not included):

• PAE Series parallel-stack inverters (x4) • BP-D Dual Mounting Backplates (x2)

• ME-RTR R

outer

Figure 2-4b, MPDH-30D with Field Installed Options

2.0 Introduction

2.1.4

• MP Dimensions (H x W x D): Each Enclosure = 18” x 13” x 6.75” (45.7cm x 33cm x 17.1cm)

MP Weight:

• (20 kg), MPDH (D Side) = 46 lbs. (20.7 kg)

• Shipping Dimensions (H x W x D): 26.75” x 17.75” x 14.75” (56.9cm x 38.1cm x 31.8cm)

• Shipping Weight: MPSL = 50 lbs. (22.7 kg), MPSH = 53 lbs. (24 kg), MPDH (AC Side) = 46 lbs. (20.7 kg), MPDH (D Side) = 48 lbs. (21.8 kg)

Physical Features

MPSL = 48 lbs. (21.8 kg), MPSH = 51 lbs. (23.1 kg), MPDH (AC Side) = 44 lbs.

2.1.5 Optional Accessories/Components

• ME-RC – R

conﬁ gured and monitored, and maintains the critical settings in nonvolatile memory.

• ME-ARC – Advanced Remote Control with LCD display; has all the features of the ME-RC remote, but also conﬁ gures the advanced features of the inverter (or any connected accessory).

• ME-RTR – The ME-RTR, or “router” provides parallel capability for the MS-PAE Series inverters and includes many of the same features as the ME-ARC advanced remote control. The router is designed with a user-friendly LCD display and rotary SELECT knob that allows all connected MS-PAE series inverter/chargers to be programmed in sync without the need to program each inverter separately. The router will accommodate up to four MS-PAE inverter/chargers in parallel, plus accessories.

• ME-BMK-NS – Battery Monitor; determines battery State of Charge (DC shunt not included).

• ME-AGS-N – Automatic Generator Start Controller (Network version); automatically starts/

stops generators.

• BP-S – Single Mounting Backplate; for mounting a Magnum inverter and MP/MPX enclosures. It can be combined with the BP-D for additional mounting surface area. UPS shippable.

• BP-D – Dual Mounting Backplate; for mounting a Magnum inverter and MP/MPX enclosures, It can be combined with the BP-S for additional mounting surface area. UPS shippable.

• DC Breakers – MP enclosure has space for E-Frame/back-mounted (1” width) or Q-Frame/ DIN rail-mounted (1/2” width) DC breakers (not applicable for the MPSH-30D model).

• MPX Extensions – These enclosures allow additional Magnum inverters to be mounted and electrically wired to the Magnum Panel to allow an integrated panel system. The top of the MPX is designed to allow Magnum inverters to ﬁ t seamlessly into the top. The MPX Series enclosures come with the AC and DC breakers and wiring to install another Magnum inverter. An inverter hood is also included with each MPX extension to allow the inverter to be mounted vertically.

• ME-MW-W - The MagWeb Wireless allows Magnum Energy’s inverters and accessories to be remotely monitored. Installed on the Magnum network, the MagWeb provides live Internet monitoring of the inverter, battery monitor, and automatic generator start module. Using your always on Internet connection, the MagWeb makes live and historical conditions available to you through a web browser at

emote Control with LCD display; allows inverter (or connected accessory) to be

http://data.magnumenergy.com

2.2 Regulatory Compliance

The MP enclosure Equipment (ISE) for use with inverters. It has been independently tested and certiﬁ ed by Intertek Testing Services (known as ETL) to UL 1741, 2nd Edition, and is also CSA certiﬁ ed to C22.2 No.

107.1-01 (R2006). These certiﬁ cations mean the MP enclosure meets the minimum requirements

of prescribed product safety standards. Note: ETL is a Nationally Recognized Testing Laboratory (NRTL). NRTL’s are qualiﬁ ed organizations

that meet the requirements of Occupational Safety and Health Administration (OSHA) regulations to perform independent safety testing and product certiﬁ cation.

carries the ETL Listed Mark and is designated as Interconnection System

Page 6

2.0 Introduction

2.3 MP External Components

The main external the MPDH enclosure (as shown in Figure 2-6) are described below:

components of the MPSL and MPSH enclosures (as shown in Figure 2-5) and

Info: head, T25 T

Inv

This plate allows a Magnum inverter to sit on top of the MP enclosure, and allow the AC and DC wiring to be easily routed from the inverter to the MP enclosure.

The inverter plate can be replaced with the Knockout Plate, which is used as an upper conduit/safety plate. See Section A5 for more information on the Knockout Plate.

The external components are secured to the enclosure using #10-32 x 3/8” (Pan

orx driv

erter Plate - The MP enclosure is factory shipped with the inverter plate installed.

WARNING: To

MP enclosure, the Knockout Plate must be installed if the Magnum inverter is removed for service and the AC bypass breaker is switched ON.

e) thread cutting screws and #10 lock washers.

prevent accidental access to live electrical circuits inside the

Figure 2-5, MPSL and MPSH External Components

2.0 Introduction

Front Panel Cover

access the internal components. The front cover panels are equipped with rectangular knockouts, to allow additional AC and DC circuit breakers to be installed.

Side

and communications conductors to be routed from the main MP enclosure to a MPX extension box (when used).

battery monitor) and the DC ground stud.

Conduit

enclosure are provided to allow metal and PVC conduits. For dimensions and sizes, see

Figures 3-13 and 3-14.

Access

Shunt

Access

Knockouts

- The cover(s) on the front of the MP enclosures can be removed to

Plate (x2) - These access plates (one on each side) allow the power

Plate - This plate allows access to the DC shunt (for connecting a

Multiple sized knockouts on the side and bottom of the MP

Figure 2-6, MPDH External Components

Page 8

2.0 Introduction

2.4 MP Internal Components

Additional MPSL-30D (see Figure 2-7), the MPSL-60S (see Figure 2-8), the MPSH-30D (see Figure 2-9), and the MPDH-30D (see Figures 2-10a and 2-10b) are listed alphabetically and described below:

components are located inside the MP enclosure. The components found inside the

Info: A compression terminals (no ring lugs required). The number of terminals available depends on the particular busbar and the MP model.

Info: common to each other as they are all connected to the MP chassis.

GROUND

used to connect the incoming and outgoing AC circuit grounds to a common ground point.

AC LEG 1 IN Busbar - Connects incoming LEG 1 AC power from the grid or a generator to the MP/inverter system. This busbar is used to connect the LEG 1 output of a 120/240V AC external source (grid power or AC generator) to the MP enclosure. The AC LEG 1 IN busbar is connected to the HOT 1 input of the inverter system (thru the inverter’s AC input breaker). The external source is used by the inverter to charge the batteries and power downstream loads thru the inverter.

AC LEG 1 OUT Busbar - Supplies the LEG 1 power from the MP/inverter system to the AC loads. This busbar is the connection point from the MP enclosure to the LEG 1 terminal in the electrical panel powered by the inverter.

AC LEG 2 IN Busbar - Connects incoming LEG 2 AC power from the grid or a generator to the MP/inverter system. This busbar is used to connect the LEG 2 output of a 120/240V AC external source (AC generator or grid power) to the MP enclosure. The AC LEG 2 IN busbar is connected to the HOT 2 input of the inverter system (thru the inverter’s AC input breaker). This external source is used by the inverter to charge the batteries and power downstream loads thru the inverter.

AC LEG 2 OUT Busbar - Supplies the LEG 2 power from the MP/inverter system to the AC loads. This busbar is the connection point from the MP enclosure to the LEG 2 terminal in the electrical panel powered by the inverter.

AC NEUTRAL Busbars - The neutral leg for loads powered from the MP/inverter system and the neutral leg for AC power supplied to the MP/inverter system by either a generator or grid. These two busbars are the connection points for the AC neutrals in the system. The system neutrals include: the neutral output from the external AC source (generator/grid), the neutral terminal in the electrical panel that is powered by the inverter, and the input and output neutral terminals of each inverter. Note: Both AC NEUTRAL busbars are electrically connected to each other.

All the busbars have dual hole sizes — the larger holes accept #14 to #1/0

and the smaller holes accept #14 to #6 AWG — these holes have set-screw type

All AC Ground Busbars, DC Ground Busbars, and the DC Ground Stud are electrically

Busbar(s) - These busbars are connected to the MP enclosure chassis and are

• Installing MS-PAE Series inverters: Both neutral terminals are common with each other within the MS-PAE Series, this means only one neutral from each MS-PAE inverter needs to connect to the AC NEUTRAL busbar.

• Installing MS4024 inverters: The Neutral In and Neutral Out are not common with each

other within the MS4024; this means both input and output neutrals from each MS4024 inverter needs to connect to the AC NEUTRAL busbar.

AC NEUTRAL-GROUND Connection - A wire (green) connects the AC neutral to the system ground. This green wire can be removed from the GROUND busbar if the primary AC neutral to ground connection is made elsewhere in the system (see Section 3.10).

Battery Negative Connection - The bottom of the DC Shunt busbar is the connection point to the negative terminal of the battery bank. This busbar is supplied with a 3/8-16 bolt and lock washer to allow the battery cable to be connected.

2.0 Introduction

Battery

point to the positive terminal of the battery bank. The DC disconnect provides a rear captive nut to allow the battery cable to be front-connected using a 3/8-16 bolt and lock washer.

DC GROUND Busbar - This busbar is connected to the MP enclosure chassis and is used to tie DC equipment grounds to a common point. This terminal is also used to connect the inverter/ MP/inverter system to the DC grounding electrode. If the DC grounding electrode conductor is greater than #1/0 AWG, use the DC Ground Stud to connect to the DC grounding electrode (i.e., ground rod).

DC Ground Stud - This 5/16-18 stud is connected to the MP enclosure chassis, and is provided as a connection point to the DC grounding electrode when the conductor is larger than #1/0 AWG.

This stud also connects to the DC shunt through a busbar and serves as the DC negative to ground connection point. If installing a PV-GFP device, this busbar must be removed (see Section 3.11). Note: For ground wires #1/0 AWG or smaller, use the DC GROUND busbar.

DC NEGATIVE Busbar - This busbar is connected to the battery bank negative through the load side of the DC shunt. This busbar is the battery negative connection point for additional DC circuits, such as from the DC negative output of a charge controller or when combining the negatives of DC load circuit breakers. This busbar is rated to handle 120 amps.

DC NEGATIVE-GROUND Connection - This busbar connects the DC negative to the system ground. It must be removed if the primary DC negative to ground connection is made elsewhere in the system (see Section 3.11).

DC POSITIVE Busbar - This busbar is connected to the battery bank positive through the bottom of the inverter DC disconnect. This busbar is the battery positive common point for connecting additional DC circuits, such as from the output of a charge controller disconnect, the DC positive feed to DC load breakers, and the positive connection to a battery status monitor. This busbar is rated to handle 120 amps.

DC Shunt - A DC shunt installed in the DC negative side that is used to measure the amperage ﬂ owing between the battery and the inverter (and any DC loads connected). This shunt is

pre-installed so that a battery monitor may be easily connected to display the current ﬂ ow. See Section A-2 for information on installing and wiring the ME-BMK-NS battery monitor inside the MP enclosure. The MPSL-30D and MPSL-60S are supplied with a 500 amp/50mV DC shunt, and the MPSH-30D and MPDH-30D have a 1000A/100mV DC shunt.

DC Shunt Voltage Sense Terminals - These two shunt terminals/screws serve as the sense connections to the optional ME-BMK-NS battery monitor. When current is passed through the shunt, the IR drop (AKA voltage drop) developed across it can be read by the battery monitor to provide an accurate indication of the current ﬂ owing through the shunt.

DIN Rail Track - For installing up to 1/2” (12.7mm) wide, DIN rail-mounted, Q-Frame type, DC breakers. These breakers can be used for connecting DC loads or installing a PV-GFP device. The track may be removed to allow 1” (25.4mm) wide, back-mounted, E-Frame type breakers to be installed instead.

Enclosure Joining Screw/Washer - A #10-32 x 3/8” (Pan head, T25 Torx drive) thread cutting screw and #10 lock washers are provided to join the two enclosures of the MPDH-30D together – to have them at the same electrical potential. See Figure 3-16c for more information.

INV HOT 1 OUT Busbar - This busbar is the connection point for the HOT 1 output from each installed inverter. The total output power combined from every inverter on this busbar is fed thru the Inverter Bypass Breaker Assembly to the AC LEG 1 OUT Busbar.

INV HOT 2 OUT Busbar - This busbar is the connection point for the HOT 2 output from each installed inverter. The total output power combined from every inverter on this busbar is fed thru the Inverter Bypass Breaker Assembly to the AC LEG 2 OUT Busbar.

Positive Connection - The bottom of the inverter’s DC disconnect is the connection

Page 10

2.0 Introduction

Inverter AC

circuit, a way to disconnect the AC input to the inverters, and overcurrent protection to the inverter’s input wires when the minimum recommended AC wire sizes are used. Depending on

your MP model, the breaker provided for the inverter input will be either a double-pole 30 amp (D30A) or a single-pole 60 amp (S60A) AC breaker.

The double-pole 30 amp AC breaker is provided on the MPSL-30D, MPSH-30D, and MPDH-30D models to allow 120/240V AC inverters — up to 30 AC amps per leg pass-thru capability — to be

connected. The MPSL-30D and MPSH-30D come with one double-pole 30A input breaker and the MPDH-30D comes with two double-pole 30A breakers. These three models require a double-pole 30A breaker for each additional inverter installed in a parallel-stacked conﬁ guration.

The single 60 amp AC breaker is provided on the MPSL-60S models to allow 120V AC inverters — up to 60 AC amps pass-thru capability — to be connected. If connecting MS4024’s in a series-stacked conﬁ guration, an additional single pole 60A breaker for the second MS4024 will be required (as provided in the MPX extension kit).

Inverter Bypass Breaker Assembly - The Inverter AC Bypass Breaker Assembly is pre-wired at the factory and consists of the inverter bypass switch and the inverter AC output disconnect breaker. This breaker assembly provides a way to disconnect the AC output of the inverter system, and to directly connect the AC input to the AC output by bypassing the inverter system.

The MPSL-30D and MPSL-60S are installed with a double-pole 60-amp AC bypass breaker assembly, and the MPSL-30D and MPDH-30D are equipped with a double-pole 125-amp AC bypass breaker assembly.

Inverter DC Disconnect Breaker - This 250 amp DC disconnect is a high interruption capacity, magnetic-hydraulic, DC circuit breaker. These breakers were speciﬁ cally designed and tested to work with Magnum inverters to provide the delay time needed to minimize nuisance breaker

tripping. It provides an easy and convenient way to isolate the inverter from the battery, and meets the NEC/CEC requirements for DC overcurrent protection when the size and length of the battery-to-inverter cables are installed in accordance with the installation instructions in this manual. These breakers have front-accessible connections, each provided with 3/8-16 Hex head

bolts with lock washers.

Inverter’s DC Negative Connection - Connects to Magnum inverter’s DC negative terminal.

Inverter’s DC Positive Connection - Connects to Magnum inverter’s DC positive terminal.

Mounting Dimples, BMK (x2) - These dimples allow the optional ME-BMK-NS (Battery Monitor

Kit without DC shunt) to be installed. Two #8-32 x 1/2” (T20 Torx drive) thread cutting screws are provided to mount the battery monitor. See Section A2 for more information on mounting the battery monitor.

Mounting Holes, Inv AC Input Breakers - Used to install additional Inverter AC Input Breakers, which provide protection to each inverter’s AC input circuit.

Mounting Holes, Inv DC Backmount Breakers - For installing 1” (25.4mm) wide, back-

mounted, E-Frame type, DC breakers. These breakers can be used for connecting DC loads or installing a PV-GFP device.

Mounting Holes, Inv DC Disconnect Breakers - Used to install additional Inverter DC Disconnect Breakers, which isolate the inverter from the battery. These breakers meet the NEC/

CEC requirements for DC overcurrent protection when used in accordance with the installation instructions in this manual.

Mounting Keyholes, MP Enclosure (x4) - Four keyholes for mounting the enclosure. See Figures 3-5 or 3-6 for size information on these keyholes.

Input Breakers - These breakers provide protection to the inverter’s AC input

2.0 Introduction

3 4

DC SHUNT

(

MOUNTED TO ENCLOSURE

UNDER INVERTER DC

OMPONENTS

DISCONNECT BREAKERS)

IN/OUT)

TIVE

Figure 2-7, MPSL-30D Internal Components

INVERTER’S DC NEGA

CONNECTION (CABLE)

DC NEGATIVE BUSBAR

INVERTER DC NEGATIVE

ONNECTIONS (BUSBAR)

DIN RAIL TRACK

AC LEG 1 OUT BUSBAR

AC LOAD PANEL)

(TO

DC POSITIVE BUSBAR

AC GROUND BUSBAR

(SOURCE/LOAD

DC NEGATIVE-

GROUND CONNECTION

INVERTER’S DC POSITIVE

CONNECTION (CABLE)

MOUNTING DIMPLES, BMK

ME-BMK-NS)

(FOR

INVERTER BY ASSEMBLY (60A)

MOUNTING HOLES, DC BACKMOUNT BREAKERS

AC NEUTRAL BUSBAR (SOURCE/LOAD

BATTERY NEGATIVE CONNECTIONS

AC LEG 2 IN BUSBAR

GEN OR GRID)

(FROM

DC GROUND STUD

PASS BREAKER

IN/OUT)

INV HOT 2 OUT BUSBAR

NVERTER OUTPUT)

(FROM I

AC GROUND BUSBAR (INVERTER INPUT/O

INVERTER AC INPUT BREAKER (

D30A)

MOUNTING HOLES, INV DC DISCONNECT BREAKER

AC NEUTRAL-

GROUND CONNECTION

BATTERY POSITIVE

CONNECTION

DC GROUND BUSBAR

DC SHUNT

(500A/50MV)

UTPUT)

INV HOT 1 OUT BUSBAR

NVERTER OUTPUT)

(FROM I

AC NEUTRAL BUSBAR (INVERTER INPUT/O

MOUNTING HOLES, TO ADD

AC INPUT BREAKER

INV

INVERTER DC DISCONNECT BREAKER

AC LEG 1 IN BUSBAR

GEN OR GRID)

(FROM

AC LEG 2 OUT BUSBAR

AC LOAD PANEL)

(TO

MOUNTING KEYHOLES, MP ENCLOSURE (

DC SHUNT VOLT SENSE TERMINALS/SCREWS

Page 12

UTPUT)

X4)

AGE

2.0 Introduction

3 4

DC SHUNT

MOUNTED TO ENCLOSURE

(

UNDER INVERTER DC

OMPONENTS

DISCONNECT BREAKERS)

INVERTER’S DC NEGA

CONNECTION (CABLE)

DC NEGATIVE BUSBAR

INVERTER DC NEGATIVE

ONNECTIONS (BUSBAR)

DIN RAIL TRACK

AC LEG 1 OUT BUSBAR

AC LOAD PANEL)

(TO

DC POSITIVE BUSBAR

AC GROUND BUSBAR

(SOURCE/LOAD

DC NEGATIVE-

GROUND CONNECTION

IN/OUT)

TIVE

Figure 2-8, MPSL-60S Internal Components

INVERTER’S DC POSITIVE

CONNECTION (CABLE)

MOUNTING DIMPLES, BMK

ME-BMK-NS)

(FOR

INVERTER BY ASSEMBLY (60A)

MOUNTING HOLES, DC BACKMOUNT BREAKERS

AC NEUTRAL BUSBAR (SOURCE/LOAD

BATTERY NEGATIVE CONNECTIONS

AC LEG 2 IN BUSBAR

GEN OR GRID)

(FROM

DC GROUND STUD

PASS BREAKER

IN/OUT)

INV HOT 2 OUT BUSBAR

NVERTER OUTPUT)

(FROM I

AC GROUND BUSBAR (INVERTER INPUT/O

INVERTER AC INPUT BREAKER (

MOUNTING HOLES, INV DC DISCONNECT BREAKER

AC NEUTRALGROUND CONNECTION

BATTERY POSITIVE CONNECTION

DC GROUND BUSBAR

DC SHUNT (500A/50MV)

UTPUT)

SINGLE 60A)

INV HOT 1 OUT BUSBAR

NVERTER OUTPUT)

(FROM I

AC NEUTRAL BUSBAR (INVERTER INPUT/O

MOUNTING HOLES, TO ADD

AC INPUT BREAKER

INV

INVERTER DC DISCONNECT BREAKER

AC LEG 1 IN BUSBAR

GEN OR GRID)

(FROM

AC LEG 2 OUT BUSBAR

AC LOAD PANEL)

(TO

MOUNTING KEYHOLES, MP ENCLOSURE (

DC SHUNT VOLT SENSE TERMINALS/SCREWS

UTPUT)

X4)

AGE

2.0 Introduction

3 4

10 11

DC SHUNT

MOUNTED TO ENCLOSURE

(

UNDER INVERTER DC

OMPONENTS

DISCONNECT BREAKER)

INVERTER’S DC NEGA

CONNECTION (CABLE)

DC NEGATIVE BUSBAR

INVERTER DC NEGATIVE

ONNECTIONS (BUSBAR)

MOUNTING HOLES, INV DC

DISCONNECT BREAKER

AC LEG 1 IN BUSBAR

(FROM

AC LEG 2 OUT BUSBAR

(TO

DC GROUND BUSBAR

DC SHUNT

(1000A/100MV)

GEN OR GRID)

AC LOAD PANEL)

TIVE

Figure 2-9, MPSH-30D Internal Components

INVERTER’S DC POSITIVE

CONNECTION (CABLE)

MOUNTING DIMPLES, BMK

ME-BMK-NS)

(FOR

INVERTER BY ASSEMBLY (125A)

INVERTER DC DISCONNECT BREAKER

DC POSITIVE BUSBAR

AC GROUND BUSBAR (SOURCE/LOAD

MOUNTING KEYHOLES, MP ENCLOSURE (

DC SHUNT VOL SENSE TERMINALS/SCREWS

PASS BREAKER

IN/OUT)

X4)

TAGE

INV HOT 2 OUT BUSBAR

NVERTER OUTPUT)

(FROM I

AC GROUND BUSBAR (INVERTER INPUT/O

INVERTER AC INPUT BREAKER (D30A)

AC LEG 1 OUT BUSBAR

AC LOAD PANEL)

(TO

BATTERY NEGATIVE CONNECTIONS

AC NEUTRALGROUND CONNECTION

DC NEGATIVEGROUND CONNECTION

UTPUT)

INV HOT 1 OUT BUSBAR

NVERTER OUTPUT)

(FROM I

AC NEUTRAL BUSBAR (INVERTER INPUT/O

MOUNTING HOLES, TO ADD

AC INPUT BREAKER

INV

AC NEUTRAL BUSBAR SOURCE/LOAD

BATTERY POSITIVE CONNECTION

AC LEG 2 IN BUSBAR

GEN OR GRID)

(FROM

DC GROUND STUD

Page 14

UTPUT)

IN/OUT)

2.0 Introduction

INVERTER’S DC NEGA

CONNECTION (CABLE)

AC NEUTRAL BUSBAR

(INVERTER INPUT/O

MOUNTING HOLES, TO ADD

AC INPUT BREAKERS

INV

AC NEUTRAL-

GROUND CONNECTION

ENCLOSURE JOINING

CREW/WASHER

RIGHT SIDE VIEW (LOWER

UTPUT)

INV HOT 2 OUT BUSBAR

NVERTER OUTPUT)

(FROM I

INVERTER BY

PASS BREAKER

ASSEMBLY (125A)

AC LEG 1 OUT BUSBAR

AC LOAD PANEL)

(TO

AC LEG 1 IN BUSBAR

GEN OR GRID)

(FROM

TIVE

UTPUT)

INVERTER’S DC POSITIVE CONNECTION (CABLE)

AC GROUND BUSBAR (INVERTER INPUT/O

AC LEG 2 OUT BUSBAR

AC LOAD PANEL)

(TO

AC LEG 2 IN BUSBAR

GEN OR GRID)

(FROM

SECTION)

INV HOT 1 OUT BUSBAR

NVERTER OUTPUT)

(FROM I

INVERTER AC INPUT BREAKERS (D30A

AC NEUTRAL BUSBAR (SOURCE/LOAD

AC GROUND BUSBARS (SOURCE/LOAD

X2)

IN/OUT)

Figure 2-10a, MPDH-30D (AC Side) Internal Components

2.0 Introduction

DC SHUNT

MOUNTED TO ENCLOSURE

(

UNDER INVERTER DC

OMPONENTS

DISCONNECT BREAKERS)

DC NEGATIVE BUSBAR

MOUNTING HOLES, INV DC

DISCONNECT BREAKER

DC POSITIVE BUSBAR

DC NEGATIVE-

GROUND CONNECTION

Figure 2-10b, MPDH-30D (DC Side) Internal Components

MOUNTING DIMPLES, BMK

ME-BMK-NS)

(FOR

DIN RAIL TRACK

DC GROUND BUSBARS (X3)

DC SHUNT (1000A/100MV)

INVERTER DC NEGATIVE

ONNECTIONS (BUSBAR)

MOUNTING HOLES, DC

BACKMOUNT BREAKERS

BATTERY NEGATIVE

CONNECTIONS

DC GROUND STUD

INVERTER DC DISCONNECT

BREAKERS (X

BATTERY POSITIVE

CONNECTIONS (X

MOUNTING KEYHOLES

EACH ENCLOSURE)

(X4 FOR

DC SHUNT VOLT SENSE TERMINALS/SCREWS

AGE

Page 16

3.0 Installation

This section describes the requirements and recommendations for installing the MP enclosure.

Info: MPSL/MPSH inverters are required, the optional MPX enclosures are used. Refer to the MPX Extension Owner’s Manual (PN:64-1015) for information on installing these additional inverters.

This installation section primarily explains the installation of one inverter on the

enclosure,

and two inverters on the MPDH enclosure. When additional

3.1 Pre-Installation

Before proceeding with the installation:

• Please read and familiarize yourself with the entire Installation section.

• Read and ensure you understand the “Important Product Safety Information” and the “Important Battery Safety Instructions” at the beginning of this manual.

• Be aware of all safety and electrical codes which must be met.

• Inspect all shipping cartons for evidence of physical damage. If a shipping carton is damaged, request that the shipping agent be present for inspection when the carton is opened.

• Unpack the MP enclosure box and remove the components. Verify that you have the components and hardware as listed below in Section 3.1.1 (and shown in Figures 3-1 and 3-2).

• Use the information in Section 3.1.2 to help identify most of the materials and tools required for the installation.

• Read the information provided in Section 3.1.3 to properly plan for the installation.

3.1.1 MP Parts Included

Refer to Figures 3-1 or 3-2 (and the item list below) for you particular MP model to verify the nece

ssary parts are included. If items are missing, contact your authorized Magnum Energy dealer

or Magnum Energy.

Info: Save your proof-of-purchase as a record of your ownership; it will be needed if

the unit should require in-w

L or MPSH Models - The MPSL-30D, MPSL-60S, and MPDH-30D use a single enclosure

MPS

to provide the AC/DC breakers, busbars, and wiring for the inverter’s AC and DC circuits.

H Model - The MPDH-30D uses two enclosures, one enclosure (AC Side) provides

MPD

the AC breakers, busbars, and wiring for the inverters AC circuits; and, the other enclosure (DC Side) provides the DC breakers, busbars, and wiring for the inverter’s DC circuits.

Inverter Hood - The that is mounted on a Magnum Panel to prevent items from falling into the ventilation

openings at the top of the inverter. See Section A3 for more information on this hood.

Knockout Plate - safety plate. See Section A5 for more information on this plate.

RTR (Router) Bracket Kit - This kit consists of the router bracket and the hardware

ME-

to attach the ME-RTR (i.e., Router) to the side of the MP enclosure. This kit is not provided with the MPSL-60S model. See Section A4 for more information on this kit.

Hardware Kit - This hardware kit consists of the Charge Controller bracket and

hardware (see Section A1), the owner’s manual, communications cables (see Section

3.8), and a front cover label set (see Section 3.15).

MP AC Wiring

the inverter’s AC input and output terminals to the MP enclosure. See Section 3.6.3 for more information on this kit.

The knockout plate is provided as an upper conduit plate, or as a

Kit - This wiring kit provides the appropriate AC wires needed to connect

arranty service.

inverter hood is required to be installed over a Magnum inverter

3.0 Installation

Figure 3-1, Parts Included - MPSL and MPSH Models

Figure 3-2, Parts Included - MPDH Models

Page 18

3.0 Installation

3.1.2

The following material and tools may be required for installing this equipment:

Materials

Conduit, str

•

• Electrical tape • Wire ties

• Conductors/cables for wiring AC source/load • A strong back

• Battery cables for wiring to battery bank • Conductors for system ground

Tools

• Flat-blade 1/4” screwdrivers • Insulated pliers • Wire cutters/strippers

• Phillips screwdriver • Pencil or marker • AC/DC Voltmeter

• Drill and drill bits • 1/2” open end wrench • Level

• Torque wrenches • Ratchet drives

• Torx screwdrivers (T15, T20 and T25 drive)

Required Material and Tools

ain-reliefs, and appropriate ﬁ

ttings • 1/4” mounting bolts and lock washers

3.1.3 Planning

Installing the MP/inverter system can be fairly straightforward if you take time to plan before

the ﬁ

turning common, costly mistakes.

To assist you in planning and designing your installation, review the simpliﬁ ed system diagram shown in Figure 3-3 for parallel-stacked inverter installations, or Figure 3-4 for series-stacked inverter installations. These drawings are a simple overview of the MP/inverter installation. They are not intended to provide detailed information, override or restrict any national or local electrical codes, nor should they be the determining factor as to whether the installation is compliant – that is the responsibility of the electrician and the onsite inspector.

rst screw. The more thorough you plan, the more time you will save, and avoid

WARNING: Installations should or certiﬁ ed electrician. It is the installer’s responsibility to determine which safety codes and standards apply, and to ensure that all applicable installation requirements are followed. Applicable installation codes vary depending on the speciﬁ c location and application of the installation.

Info: Detailed MP/inv depending on you MP model.

The installation section uses the following steps to perform the MP/inverter installation:

• Find the appropriate location (Section 3.2)

• Prepare the MP enclosure and inverter (Section 3.3)

• Mounting the MP enclosure and inverter (Section 3.4)

• Beware of wiring guidelines/safety (Section 3.5)

• Wire AC circuit (Section 3.6)

• Wire DC circuits (Section 3.7)

• Wire communications cables (Section 3.8)

• Removing negative or neutral to ground connections (Sections 3.9 and 3.10)

• Determine the system ground (Section 3.11)

• Perform a ﬁ nal installation checklist (Section 3.12)

• Perform a functional test (Section 3.13)

• Attach the front covers (Section 3.14)

• Apply external labels (Section 3.15)

erter system wiring drawings are provided in Section 4.0,

be performed by qualiﬁ ed personnel, such as a licensed

ME-AGS-N

Auto Gen Start Controller

(Magnum Accessory)

OFF

ENERATOR POWER

(120/240VAC OUPUT)

UTILITY POWER

(120/240VAC OUTPUT)

Transfer

Switch

#3 MS-PAE I

NVERTER

(SLAVE)

ELECTRICAL PANEL*

(120/240VAC LOADS)

BATTERY

BANK

*A MAIN

PANEL AND SUB-PANEL

MAY BE REQUIRED

MS-PAE

NVERTER

(SLAVE)

MS-PAE

NVERTER

(SLAVE)

MS-PAE INVERTER (MASTER)

AC SIDE

ME-BMK-NS

Battery Monitor

(Magnum Accessory)

DC SIDE

Magnum Panel (AC Side)

Includes Inverter Bypass &

AC Input/Output Breakers

ME-RTR Router -

required

to stack MS-PAE

inverters

in parallel

(Magnum

Accessory)

Maximum MS-PAE inverters that can be stacked in parallel:

 MPSL-30D = maximum of two MS-PAE inverters  MPSH-30D = maximum of three MS-PAE inverters  MPDH-30D = maximum of four MS-PAE inverters

Magnum Panel

(DC side)

Includes DC Shunt & DC Disconnects

3.0 Installation

Figure 3-3, MP Series Simpliﬁ

ed Parallel-Stacked Installation Diagram

Page 20

3.0 Installation

MS4024

INVERTER

ME-AGS-N

Auto Gen Start Controller

(Magnum Accessory)

OFF

GENERATOR POWER

(120/240VAC OUPUT)

UTILITY POWER

(120/240VAC OUTPUT)

Transfer

Switch

ELECTRICAL PANEL*

(120/240VAC L

OADS)

BATTERY

BANK

*A MAIN PANEL AND SUB-PANEL

MAY BE REQUIRED

AC SIDE

ME-BMK-NS

Battery Monitor

(Magnum Accessory)

DC SIDE

MPSL-60S (AC Side)

Includes Inverter Bypass &

AC Input/Output Breakers

ME-ARC (x2)

Advanced Remotes

- for inverter set up and monitoring

(Magnum

Accessory).

The ME-RTR may

be used if identical

settings are used on both inverters.

Series Stacking Cable,

required to stack MS4024

inverters in series.

(Magnum Accessory).

Included with MPXS-60S

Extension.

MPSL-60S allows a maximum of two

MS4024's to be stacked in series

MPSL-60S (DC side)

Includes DC Shunt &

DC Disconnects

MS4024

INVERTER

Figure 3-4, MP Series Simpliﬁ

ed Series-Stacked Installation Diagram

3.0 Installation

3.2

Choosing an appropriate location for the MP/inverter system should be determined early in the installation process; install it only in a location that meets the following requirements:

Indoors ment away from sources of high temperature and moisture. The MP enclosure uses plated copper busbars, powder coated metal components, and plated fasteners, which means it is very tolerant to corrosive or condensing environments (one in which humidity and/or temperature change causes water to form on components). However, inverters are complex microprocessor controlled devices and should be treated as sophisticated electronic devices, such as computers or stereo equipment. When selecting the location for the MP/inverter system, don’t think of it in the same terms as the other connected equipment, e.g., batteries, generators, etc. When inverters are exposed to a corrosive or condensing environment their life will be shorten, and damage because of corrosion is not covered by the product warranty.

Ventilation - If a Magnum inverter is installed on the MP enclosure, the inverter will pull in air through the intake vents. In order for the inverter to provide full output power and avoid overtemperature fault conditions, do not cover or block the MP enclosure ventilation openings or install it in an area with limited airﬂ ow. At the minimum, allow 3 inches of clearance to the left and right

of the MP enclosure to provide adequate ventilation.

Close to the Battery Bank - The MP enclosure/inverter system should be located as close to the batteries as possible. This is to ensure the battery cable length is kept short. Long DC wires tend to lose efﬁ ciency and reduce the overall performance of an inverter. However, the MP enclosure, the inverter, and any other equipment that can spark (or that corrosion could damage) should not be installed in the same compartment/room as the batteries, or mounted where it will be exposed to gases produced by the batteries. These gases are corrosive and will damage this equipment; also, if these gases are not ventilated and if allowed to collect, they could ignite and cause an explosion. Consult your battery supplier for proper installation requirements.

Location

The MP/inv

erter system must be mounted indoors in a relatively clean and dry environ-

Info: Consult the inverter owner’s manual to determine the proper inverter-to-battery

ble size for the distance used. However, this cable must not be sized any smaller than

ca 0000 (4/0) AWG if the DC disconnect breaker in the MP enclosure will also be used as the overcurrent device. If a cable smaller than 4/0 AWG is used, an appropriately sized fuse must be installed to provide overcurrent protection to this smaller cable.

Safe - Keep any ﬂ ammable/combustible material (e.g., paper, cloth, plastic, etc.) that may be ignited by heat, sparks or ﬂ ames at a minimum distance of 12 feet away from the MP/inverter system. Do not install the MP/inverter system in any area that contains extremely ﬂ ammable liquids like gasoline or propane, or in locations that require ignition-protected devices. Sparks from relays, circuit breakers, etc., could ignite the fumes or spills.

Accessible - Do not block access to the front of the MP enclosure. Maintain at least a 36” (91 cm) clear space in front to access the AC and DC wiring terminals and connections inside the MP enclosure, as they will need to be checked and tightened periodically.

RFI - Most inverters can create RFI (Radio Frequency Interference). Keep this in mind when determining the placement of the MP/inverter system. You should locate the MP/inverter system as far away as possible from any electronic equipment susceptible to radio frequency and electromagnetic interference.

Expandability - The MP enclosure was speciﬁ cally designed to allow multiple inverters to be connected together. Keep in mind as your power needs grow, you can connect additional inverters (using MPX enclosures - up to your models maximum inverter capability) to increase your power capability. Use Figures 3-5 or 3-6 (depending on your MP model) to determine if you are allowing the appropriate vertical and horizontal room to expand your MP/inverter system.

Rodent Proof - Ensure the MP/inverter system is located in an area that prevents rodents and insects from entering and damaging wires/components – the MP/inverter can provide a warm habitat in a cold environment. Mesh screens or nets may need to be installed over any openings to ensure the unit is kept rodent free and well ventilated.

Page 22

3.0 Installation

7 8

1 8

3 4

7 8

5 8

1 4

MP/MPX Series

Keyhole Detail

0.5

0.3n

INVERTER H

MAGNUM

MS-P

NVERTER

INVERTER H

MAGNUM

MS-P

NVERTER

OOD

MPX LEFT SIDE

EXTENSION

MPSL/MPSH

(SINGLE E

OOD

NCLOSURE)

INVERTER H

MAGNUM

MS-P

MPX RIGHT SIDE

EXTENSION

NVERTER

OOD

Notes:

1. Lengths shown in inches.

MPSL models

allow 1-2 inverters and MPSH models allow 1-3 inverters. Installations using one inverter do not require a MPX extension, two inverters require one MPX extension, and three inverters require two MPX extensions.

3. To meet UL regulatory requirements, an inverter hood must be installed above each Magnum inverter that is mounted on the Magnum Panel (vertically).

Figure 3-5, System Dimensions (Single Enclosure)

3.0 Installation

MPX

(Extension Box)

MPX

(Extension Box)

1 1

MPDH

Enclosure

(Dual Box)

MP/MPX Series

Keyhole Detail

0.5

0.3

0.5

0.9

INVERTER HOOD

MAGNUM

MS-PAE

INVERTER

MPX RIGHT SIDE

XTENSION

MAGNUM

INVERTER HOOD

MS-PAE

MAGNUM

MS-PAE

INVERTER

MPDH

ENCLOSURE

(DUAL ENCLOSURE)

MAGNUM

INVERTER HOOD

INVERTER

MS-PAE

EXTENSION

MPX LEFT SIDE

Notes:

1. Lengths shown in inches.

2. MPDH models allow 1-4 inverters. Installations using one or two inverters do not require a MPX extension, three inverters require one

MPX extension, and four inverters require two MPX extensions.

3. To meet UL regulatory requirements, an inverter hood must be installed above each Magnum inverter that is mounted on the Magnum

Panel (vertically).

Figure 3-6, System Dimensions (Dual Enclosure)

Page 24

3.0 Installation

Remove the

upper four and

lower four Pan

head screws

(eight total)

to remove the

front cover.

DO NOT remove

these eight Truss

head screws to

remove the front

cover.

3.3 Preparing the MP Enclosure and Inverter

Prior to mounting any component, the installation will be easier if you prepare the MP enclosure and the Magnum in

• Remove the MP enclosure front cover as described in Section 3.3.1.

• Remov

e the appropriate conduit knockouts as described in Section 3.3.2.

Note: It is much easier to access the enclosure sides and remove the knockouts if the enclosure is sitting on a bench, rather than trying to remove the knockouts while the enclosure is mounted.

• Connect and separate the inverter’s AC input and output wires as described in Section 3.3.3. When installing multiple inverters, access to the inverter’s AC terminals is limited, so take the time to connect the wires and separate the wires prior to mounting the inverter.

3.3.1 Removing the Front Cover

To remove the front cover on each enclosure, use a T25 Torx screwdriver to unscrew the eight upper and lower screws/w T25 Torx drive, thread cutting screws and the washers are #10 external tooth star-washers.

The single MP enclosures (MPSL-30D, MPSL-60S, and MPSH-30D) use eight screws/washers to hold the front cover in place, see Figure 3-8. The dual MP enclosure (MPDH-30D) also uses eight screws/washers to hold each front cover in place (sixteen total), see Figure 3-9.

Important: On the AC side of the MPDH-30D, there is a #10-32 x3/8” Torx screw (T25 drive). It is screwed into the right side (see Item 17, Figure 2-10a). It is used to join the two enclosures together and must be removed prior to mounting (see Figure 3-16c).

Important: On some versions of the MP enclosure there are eight Truss head, Torx drive screws in the middle (see Figure 3-7). DO NOT remove these middle screws to remove the front cover.

These screws are used to hold the top, middle and bottom sections of the front cover together, and help align the knockout openings when additional breakers are installed (refer to Section A8).

verter by performing the following:

ashers as shown in Figure 3-7. The screws are #10-32 x 3/8” Pan head,

MP ENCLOSURE

Figure 3-7, Front Cover Screws to Remove

3.0 Installation

#10-32

STAR

WASHERS

(X8)

#10-32 X

3/8” T25

ORX DRIVE

SCREWS

(X8)

Figure 3-8, Removing Front Cover - Single Enclosure

Figure 3-9, Removing Front Covers - Dual Enclosure

Page 26

3.0 Installation

Enclosure

MPX

Enclosure

PV Array

and

DC Loads

Charge

Controllers

Battery Cables

and

DC/System Ground

AC Source

and

AC Loads

Remote/

Router

and

Accessories

3.3.2 Planning Wire/Conduit Runs and Removing Knockouts

MP enclosure is designed to provide ample room for

The to facilitate conduit installation for wire runs. See Figure 3-13 or 3-14 (depending on you model) to see the size and location of these conduit knockouts. The 1/2”, 3/4”, and 1” knockouts are normally used for the AC circuits, PV array, DC loads, and other smaller input cables. The 1 1/2” and 2” knockouts are used to connect to the battery bank. Remove the appropriate knockout close to the terminal where that wire connects, or whichever one works for the way your ﬁ eld wiring comes in.

Before removing any knockout, review Figure 3-10 and think about all the wiring required and where you are going to route the different circuits; such as:

• Wiring from the MP enclosure to the AC loads (AC sub-panel)

• Wire runs from the AC source (utility and/or a generator) to the MP enclosure

• Battery cable wiring from the battery bank to the MP enclosure

• Additional wiring from any external DC source (PV, wind, or hydro) to the MP enclosure

• Small signal wiring (remote controls, battery monitoring, auto gen starting)

• PV array and charge controller wiring

• Attaching lightning arrestors

wiring and comes standard with knockouts

Figure 3-10, Conduit/Wire Routing

3.0 Installation

Inverter AC

Output Wires

Inverter AC

Input Wires

MP Enclosure

Magnum Inverter

As shown in Figure 3-11, remove the knockouts by tapping the edge with a straight bladed scr

ewdriver and a hammer, then twist out with pliers. Ensure no debris remains inside the MP

enclosure after removing the knockouts.

Figure 3-11, Removing Knockouts

3.3.3 Connect and Separate Inverter AC Wires

ore mounting the inverter on the MP enclosure, we highly recommend using the wires provided

Bef in the MP AC Wiring Kit (Item 6, Figures 3-1 and 3-2) and connecting them to the inverter’s AC wiring terminals (see Figure 4-1 for MS4024 inverters, Figure 4-2 for MS-PAE Series inverters, or refer to the inverters owner’s manual). It is possible to connect these wires after the inverter is mounted, but space and access is limited - especially when installing multiple inverters side-byside on an MP enclosure system.

When connecting the inverter’s AC input and output wires, take time to separate the wires into two bundles (AC input and AC output), and route each bundle thru different strain-reliefs on the inverter as shown in Figure 3-12. This will help to ensure they are connected to the correct terminals in the MP enclosure after the inverter is mounted. Refer to Table 3-3 for information on each wire in the AC wiring kit and where they are used.

Info: Once the AC wires are connected inside the inverter, ensure the AC wiring access plate is reattached before mounting the inv

Figure 3-12, Connect and Separate Inverter AC Wires

erter on the MP enclosure.

Page 28

3.0 Installation

FRONT

BOTTOM

VIEW

LEFT SIDE

VIEW

RIGHT SIDE

IEW

B B B

D D

TOP VIEW

(WITH INVERTER

TOP PLATE)

CONDUIT KNOCKOUTS: A = ½” (x4) B = ½” and ¾” (x12) C = ¾” and 1” (x18) D = 1 ½” and 2” (x6)

Figure 3-13, MPSL/MPSH Dimensions and Knockout Location/Sizes

NOTE:

ENSIONS

DIM

SHOWN IN

INCHES

3.0 Installation

BOTTOM VIEW

LEFT SIDE VIEW

CONDUIT KNOCKOUTS:

A = ½” (x4)

B = ½” and ¾” (x16)

C = ¾” and 1” (x24)

D = 1 ½” and 2” (x10)

TOP VIEW

(WITH INVERTER

TOP PLATE)

ACA

RIGHT SIDE VI

(AC SIDE) FRONT VIEW (DC SIDE)

B B B

D D

B B B

D D

.13

INCHES

SHOWN IN

DIMENSIONS

NOTE:

Figure 3-14, MPDH Dimensions and Knockout Location/Sizes

Page 30

3.0 Installation

3.4 Mounting the MP/Inverter System

e careful to note the height at which you want to locate the MP and inverter to ensure you can

B access any controls and wiring terminals. Use Figure 3-5 or 3-6 to determine the mounting keyhole loctions, or use the base of the MP enclosure as a template to mark the mounting screw locations. After marking the mounting screw locations, secure the MP enclosure to an appropriate solid noncombustible* vertical surface using appropriate mounting hardware. The mounting keyhole slots on the MP enclosure will accept up to a maximum 1/4” screw/bolt.

The MP enclosure must be mounted on a vertical surface (on a wall) in an upright position to meet regulatory requirements and to ensure the DC breakers operate properly. The surface and mounting hardware must be capable of supporting at least three times the combined weight of all the components mounted (i.e., MP enclosure, inverter, and any other accessories). When considering the strength of the support surface, remember each MP enclosure with inverter can weigh up to 120 lbs. (54 kg). Once the MP enclosure is ﬁ rmly secured, set the Magnum inverter into the top of the MP enclosure and secure it to the mounting surface.

If mounting the MPDH-30D, ensure the two enclosures (AC and DC sides) are mechanically and electrically connected by screwing them together as shown in Figure 3-16c.

WARNING: The MP to prevent personal injury.

CAUTION: When a Magnum inverter is installed vertically, the inverter hood (Item 2,

ures 3-1 and 3-2) must be installed over the top of the inverter to prevent objects

Fig falling into the inverter’s vent openings.

Info: Magnum has two mounting backplates that provide a suitable non-combustible

rface and the required support for mounting MP enclosures, MPX enclosures, and

su Magnum inverters together. The BP-S is the single backplate, and the BP-D is the dual backplate. Harware to mount the MP enclosure is provide with either backplate.

* The Magnum reach a temperature up (90°C) and is required to be mounted on a non-combustible surface. A non-combustible surface is one made of material that will not ignite, burn, support combustion, or release ﬂ ammable vapors when subjected to ﬁ re or heat as per the ASTM E136 standard. For the most part, these are materials that are largely comprised of inorganic materials such as stone, steel, iron, brick, tile, concrete, slate, and glass. Common building materials such as gypsum board as well as any paint, wall coverings, and certainly wood will not pass.

inverter base can

enclosure is heavy. Use proper lifting techniques during installation

to 194°F

BP-S

(SINGLE

MOUNTING

BACKPLATE)

MP SINGLE ENCLOSURE

Figure 3-15a, Mounting the MP Single Enclosure

BP-S

INGLE

OUNTING

BACKPLATE)

MP SINGLE ENCLOSURE

3.0 Installation

MAGNUM

NVERTER

Note: Prior to

mounting the inverter

connect and separate

the AC input and

output wires within the

inverter, and then route

the wiring through the

MP enclosure. Ensure

the AC access plate is reattached to the

inverter.

Figure 3-15b, Mounting Inverter - MP Single Enclosure

BP-S

(SINGLE

MOUNTING

BACKPLATE)

MAGNUM

INVERTER

MP SINGLE ENCLOSURE

INVERTER HOOD

Note: The inverter hood does not

mount to the in

must be mounted to a backplate or

wall. Mounting bolts for the hood

are included with the backplate,

otherwise the installer must supply

the bolts. The mounting slots on the

hood will accept up to a maximum

1/4” screw/bolt. The bottom edge

of the hood must be mounted ﬂ ush

against the top of the inverter. This is the optimal position for

minimizing the risk of objects falling

into the inverter, and at the same

time providing the airﬂ ow clearance

needed from the inverter’s top vents.

verter chassis, it

Figure 3-15c, Mounting Inverter Hood - MP Single Enclosure

Page 32

3.0 Installation

BP-D

UAL

OUNTING

BACKPLATE)

MPDH-30D

(DC SIDE

NCLOSURE)

BP-D

(DUAL M

BACKPLATE)

Figure 3-16a, Mounting the MP Dual Enclosure (DC Side)

MPDH-30D

(DC SIDE

ENCLOSURE)

OUNTING

Note: There is a #10-32

(T25 Torx drive) screw

and lock w

on the right side of the AC

side enclosure (see Item

17, Figure 2-10a).

Prior to mounting the AC

side enclosure, ensure

this Torx screw and lock

MPDH-30D

(AC SIDE

ENCLOSURE)

washer are removed. They are used to join the AC and DC enclosures as

shown in Figure 3-16c.

asher located

Figure 3-16b, Mounting the MP Dual Enclosure (AC Side)

BP-D

(DUAL M

OUNTING

BACKPLATE)

MPDH-30D

(AC AND DC SIDE

NCLOSURES)

3.0 Installation

RIGHT SIDE VIEW

Note: Screw the two enclosures

together at this location to ensure

they are electrically at the same

potential. Use the #10-32 x 3/8”

screw (T25 Torx drive) and lock

asher that is attached to the

AC side of the MPDH-30D at the

opposite side of this location (see Item 17, Figure 2-10a).

Figure 3-16c, Connecting the Two Sides Together - MP Dual Enclosure

MAGNUM

PAE SERIES

INVERTER

BP-D

(DUAL M

OUNTING

BACKPLATE)

Note: Prior to mounting

, connect and

MPDH-30D

(AC AND DC SIDE

ENCLOSURES)

the inverter

separate the AC input and

output wires within the

inverter, and then route

the wiring through the MP

enclosure. Ensure the AC

access plate is reattached

to the inverter.

Figure 3-16d, Mounting First Inverter - MP Dual Enclosure

Page 34

3.0 Installation

BP-D

UAL

OUNTING

BACKPLATE)

MPDH-30D

(AC AND DC SIDE

ENCLOSURES)

Figure 3-16e, Mounting Second Inverter - MP Dual Enclosure

MS-PAE SERIES

INVERTERS

OUNTED

MAGNUM

AE SERIES

NVERTERS

Note: Prior to mounting

the inverter

separate the AC input and

output wires within the

inverter, and then route

the wiring through the MP

enclosure. Ensure the AC

access plate is reattached

to the inverter.

, connect and

INVERTER HOODS

INSTALLED

THE INVERTERS

OVER

Note: The inverter hood does not

mount to the in

must be mounted to a backplate or

wall. Mounting bolts for the hood are

included with the backplate, otherwise

the installer must supply the bolts. The

mounting slots on the hood will accept

up to a maximum 1/4” screw/bolt.

The bottom edge of the hood must be

mounted ﬂ ush against the top of the

inverter. This is the optimal position for

minimizing the risk of objects falling

MPDH-30D

(AC AND DC SIDE

ENCLOSURES)

Figure 3-16f, Mounting the Inverter Hoods - MP Dual Enclosure

into the inverter, and at the same time providing the airﬂ ow clearance needed

from the inverter’s top vents.

verter chassis, it

3.0 Installation

3.5

Wiring the MP Enclosures

This section describes the requirements and recommendations for wiring to/from the MP enclosure. Read all instructions before wiring the MP enclosure.

IMPORTANT: The installation of this MP enclosure/inverter system must meet all local codes and standards and be performed by qualiﬁ ed personnel such as licensed electricians or Certiﬁ ed Renewable Energy (RE) System installers.

The NEC (National Electric Code, ANSI/NFPA 70) for the United States and the CEC (Canadian Electrical Code, CSA 22.1) for Canada provide the standards for safely wiring residential and commercial installations. The NEC/CEC list the requirements for wire sizes, overcurrent protection, and installation methods and requirements.

Be aware that the MP/inverter system involves power from multiple sources (inverter, generator, utility, batteries, solar arrays, etc.) which make the wiring more hazardous and challenging.

WARNING: The AC neutral and DC negative are bonded to ground in this enclosure. If the AC must remove the DC and/or AC bonding inside this enclosure. Refer to Section 3.9 and

3.10 to remove the AC and/or DC ground bond connection.

WARNING: Ensure all sources of DC power (i.e., batteries, solar, wind, or hydro) and AC power (utilit fuses removed) before proceeding - to prevent accidental shock.

3.5.1 General Wiring Requirements

• The AC and DC wires into and out of the MP enclosure must be protected as required by code. This can be done by using jacketed wires or by feeding the wires through conduit.

or DC circuits are already bonded to ground elsewhere in your system, you

y power or AC generator) are de-energized (i.e., breakers opened,

Info: If using a Magnum inverter, and the AC wires are individual conductors (i.e., not

cketed), the strain reliefs on the inverter can be replaced with 3/4” grommets.

• Use proper clamps or other approved methods for securing the cable/conduit to the enclosure.

• The MP enclosure is speciﬁ cally designed for both AC and DC wiring. However, where DC wiring

must cross AC or vice-versa, try to make the wires at the crossing point 90° to one another.

• Use only copper wires with a minimum rating of 150V, 75°C if only 120V AC power is being

used; or, with a minimum rating of 300V, 75°C if 120/240V AC power is being used.

• In a system where one conductor is grounded, the wire colors on the DC side and AC side

are the same. The insulation on all grounded conductors (DC negative/AC neutral) must be white, gray, or any color except green if marked with white at each termination (marking only allowed on 6 AWG or larger conductors). The equipment grounding conductors must be bare (no insulation), or have green or green with yellow-striped insulation or identiﬁ cation. The hotungrounded conductor (DC positive/AC hot) is usually red or black.

• Terminals containing more than one conductor must be listed for multiple conductors.

• The connectors or terminals used on ﬂ exible, ﬁ ne stranded conductors must be speciﬁ cally

marked or labeled for use with ﬁ ne-stranded conductors.

• The MP enclosure includes wires (along with communication cables) with insulation rated for

at least 300 volts, which allows 120/240V AC inverters to be installed. If installing a 120/240V AC inverter, the installer must also provide wires (both power and communication) with the insulation rated for at least 300 volts.

3.5.2 Disconnect Switch and Overcurrent Protection

For residential and commercial electrical systems, the NEC/CEC requires a disconnect switch and

vercurrent protection

o MP enclosure provides both AC and DC circuit breakers that are used as the disconnect switch. These circuit breakers can also be used as the overcurrent protection device when the ampacity of the wire and its insulating material, voltage, and temperature rating are correctly sized to the circuit breakers in your MP enclosure. Refer to the appropriate installation section (AC Wiring or DC Wiring) to determine the minimum recommended wire size required.

for all ungrounded conductors on the AC side as well as the DC side. The

Page 36

3.0 Installation

3.5.3 Wire Routing

Before

ypical routing scenarios are:

3.5.4 Grounding

The MP/Inverter system is intended to be installed as part of a permanently grounded electrical s

yst Code (CEC) CSA 22.1 in Canada, as well as all state and local code requirements. Information and diagrams on the AC and DC ground circuits between the inverter and the MP enclosure are provided in the AC and DC wiring sections.

Information on grounding the entire MP/inverter system to earth ground is provided in Section 3-11 and the actual system ground wiring conﬁ guration must be determined by the installer.

3.5.5 Torque Requirements

Follow the speciﬁ c torque recommendations in the tables below to ensure your fasteners are tightened sufﬁ ciently. To ensure your connections are correct, you should use an accurate, quality torque wrench.

connecting any wires, determine all wire routes to and from the MP enclosure/inverter.

•

AC input wiring from the main AC panel or from a gener

•

AC input and output from the MP enclosure to the inverter

• DC wiring from the batteries to the MP enclosure

• DC wiring from the inverter to the MP enclosure

• AC output wiring from the MP enclosure to the AC sub-panel or to dedicated circuits

• Battery Temperature Sensor cable from the inverter to the batteries

• Remote control and stacking cables to the inverter through the MP enclosure

• Ground wiring to and from the MP enclosure

em per the National Electrical Code (NEC) ANSI/NFPA 70 in the United States, Canadian Electrical

ator to the MP enclosure

CAUTION: It torque after 5 days, and every 6 months thereafter.

CAUTION: AC and loose and result in a ﬁ re hazard. On the other hand, over-tightening a bolt could cause the fastener to be snapped off.

is highly recommended to go back over all fasteners/connections and re-

DC power/wire connections that are under-torqued could become

Table 3-1, Torque Values for Dual Hole Busbars

Torque values for the dual hole busbars (i.e., AC, DC, AC NEUTRAL and GROUND busbars) -

these busbars have different torque v

Wire Size

#14 to #10 AWG

#8 AWG

#6 AWG

#4 AWG

#3 to #1/0 AWG

10-32 (Small Set-Screw) 5/16-24 (Large Set-Screw)

15 in. lbs. (1.7 N-m) 35 in. lbs. (4.0 N-m)

20 in. lbs. (2.3 N-m) 40 in. lbs. (4.5 N-m)

25 in. lbs. (2.8 N-m) 45 in. lbs. (5.1 N-m)

Table 3-2, Torque Values for

3/8-16 Bolts

Not Applicable 45 in. lbs. (5.1 N-m)

Not Applicable 50 in. lbs. (5.6 N-m)

alues for the small and large set-screws.

Busbar Set-Screw Size Torque Values

Table 3-3, Torque Values for Terminal

Screws on AC Input Breakers

10 to 12 ft. lbs.

(13.6 to 16.3 N-m)

Note 1 - The 3/8-16 bolts are used on the DC Shunt Busbars and DC Disconnect Breakers.

Single-pole 60A breakers 45 in. lbs. (5.1 N-m)

Double-pole 30A breakers

45 in. lbs. (5.1 N-m)

3.0 Installation

3.6

This section provides information on the AC wiring inside the MP enclosure. It covers all AC wiring to/from the inverter, from the incoming external AC source, and to the outgoing external AC distribution panel (i.e., inverter sub-panel).

AC Wiring

3.6.1 AC Wiring Guidelines

CAUTION: Before

beginning of this manual and below to ensure a safe and long-lived system:

• Read all instructions and cautionary markings located at the beginning of this manual and in the Pre-installation section before installing the inverter and batteries.

• AC wiring must be no less than #10 AWG (5.3 mm2) gauge copper wire and be approved for residential wiring.

• DO NOT connect the Magnum inverter’s output to an AC power source. This could cause severe damage to the inverter and is not covered under warranty.

WARNING: To busbars in an AC load center (circuit breaker panel) having multi-wire branch circuits connected. Every circuit connected to a 120V AC panel must have its own neutral; otherwise, currents on shared neutrals will add rather than subtract, overloading the neutral conductor.

installing

reduce the risk of ﬁ re, do not connect a 120V AC only inverter to both

y AC wiring, review the safety information at the

3.6.2 AC Connections

To view the AC connection points inside the MP enclosure, review Figure 3-12 for MPSL-30D and MPSH-30D models, Figure 3-13 for MPSL-60S models, or Figure 3-13 for MPDH-30D models.

3.6.2.1 AC Input/Output Connections

The MP enclosure provides busbars that allow the AC wiring (both inverter and external) to be easily and permanently wired. Each busbar has dual set-screw compression terminals allowing #14 to #1/0 AWG wires using the larger set-screws and #14 to #6 AWG wires using the smaller setscrews. These busbars use slotted head set-screws and should be torqued according to Table 3-1.

The lower section of the MP enclosure provides the external AC input and output busbars. The external AC input busbars are labeled AC HOT 1 IN, AC HOT 2 IN, AC NEUTRAL, and GROUND. These busbars are used to wire a service/distribution panel (AC main panel) which allows the incoming utility/AC generator input to be connected to the inverter’s input breakers. The external AC output busbars are labeled AC HOT 1 OUT, AC HOT 2 OUT, AC NEUTRAL, and GROUND. These busbars allow a dedicated inverter panel (AC sub-panel) to be wired between the inverter’s output and the AC loads.

The upper section of the MP enclosure provides the inverter’s AC output busbars. The inverter busbars are labeled INV HOT 1 OUT, INV HOT 2 OUT, AC NEUTRAL, and GROUND. These busbars combine all the inverter outputs together when stacked for increased power capability.

Info: The busbars labeled AC NEUTRAL in the MP enclosure ARE connected together. You do using the Magnum MS-PAE Series inverter because the input and output neutrals are connected together. However, using any other Magnum inverter, the input and output neutrals are not connected, so you must connect to the inverter’s input and output neutral terminals when wiring the neutral wires.

Info: The busbars labeled GROUND in the MP enclosure ARE connected together. You do no

CAUTION: A neutral to ground connection is provided in the MP enclosure. If a neutral to ground connection the MP enclosure must be disconnected. See Section 3.9 for information to disconnect this neutral to ground connection.

not need to provide both an inverter input and output neutral connection when

t need to provide both an inverter AC input and output ground connection.

is provided elsewhere in the AC system, the connection inside

Page 38

3.0 Installation

3.6.3 Inverter AC Wires and Overcurrent Protection

he inverter’s AC input and output wiring must be size

T requirements to ensure the wires’ ability to safely handle the inverter’s maximum load current. AC wiring is required to be protected from short circuits and overloads by an overcurrent protection device, and have a means to disconnect the AC circuits.

The wires provided in the MP AC Wire Kit (as listed in Table 3-4 for your particular MP enclosure model) are sized to handle the inverter’s maximum load current. The MP enclosure provides AC circuit breakers for the inverter’s AC input. These breakers are branch circuit rated and can be used as the overcurrent protection and the AC disconnect device as long as the wires in the MP AC Wire Kit for you particular MP enclosure (or wires with at least the same rating) are used. If you are using other wire/circuit breaker sizes, refer to the appropriate electrical codes for proper sizing requirements.

When parallel stacking, a Magnum MS4024PAE or MS4448PAE inverter will be used. The full AC continuous pass-thru capacity of these inverters is 30 amps for each AC leg (AC HOT 1 or AC HOT 2), and requires a maximum 30 amp breaker on each AC input to protect the inverter’s internal passthru relay. This correlates with the MPSL-30D, MPSH-30D, or MPDH-30D models, which include a double-pole 30 amp input inverter breaker and requires a minimum wire size of #10 AWG1 in conduit.

When series stacking, the Magnum MS4024 inverter will be used. The AC HOT 1 and AC HOT 2 in this inverter may be combined to obtain a 60 amps pass-thru capability. When tying the AC HOT 1 and HOT 2 together for a 60 amp continuous pass-thru capability, the AC input to the inverter requires a 60 amp breaker. This correlates with the MPSL-60S models, which include a single 60 amp breaker for each inverter and requires a minimum wire size of #6 AWG1 in conduit.

per the local electrical safety code

Info: Additional space is provided in the MP enclosure to allow an AC breaker to be installed for MPX Extension Kit along with the required hardware and wires for installation.

AC Wire

Reference

INV HOT 1

INV HOT 2

INV NEUTRAL

INV AC

GROUND

INV HOT 1

OUT

INV HOT 2

OUT

INV NEUTRAL

OUT

each additional inverter installed. These breakers are included with the

Table 3-4, MP AC Wire Kits

Separate

Wires

into:

INPUT

Side

(3 wire

bundle)

OUTPUT

Side

(2-3 wire

bundle)

A80-MPAC-30D-SH

(for MPSL-30D, MPSH-30D and

MPDH-30D/AC Side)

#10 AWG Black

(24")

#10 AWG Red

(24")

NA (MS-PAE neutrals

in common)

#10 AWG Green

(24")

#10 AWG Black

w/Stripe (24”)

#10 AWG Red

w/Stripe (24”)

#10 AWG White

(24”)

A80-MPAC-60S-SH

(for MPSL

-60S)

#6 AWG Black

(24")

NA (provided with

MPX wire kit)

#6 AWG White

(24")

#10 AWG Green

(24")

#6 AWG Black

w/Stripe (24”)

NA (provided with

MPX wire kit)

#6 AWG White

w/Stripe (24”)

A80-MPAC-30D-LG

(for MPDH-30D/DC

Side)

#10 AWG Black

(33")

#10 AWG Red

(33")

NA (MS-PAE neutrals

in common)

#10 AWG Green

(33")

#10 AWG Black

w/Stripe (33”)

#10 AWG Red

w/Stripe (33”)

#10 AWG White

(33”)

Note 1 - This wire must be copper with a minimum rating of 300V, 75°C at an ambient temperature of 30°C. Note 2 of the inverter AC input breakers.

This wire is longer than required to allow at least 7” to be cut and used for connecting to the bottom

3.0 Installation

3.6.4 External AC Wires and Overcurrent Protection

The MP enclosure also provides a full system AC branchbypass switch. This AC breaker can be used as the overcurrent protection and disconnect for the total current that the MP enclosure system provides to the inverter’s AC electrical sub-panel. This is true as long as the wires routed from the MP enclosure to the inverter’s AC electrical sub-panel are no smaller than those listed in Table 3-5 for your particular MP enclosure model. If you are using other circuit breakers or wire sizes, refer to the appropriate electrical codes for proper sizing requirements.

Table 3-5, Minimum AC Wire Size for AC Output Breaker

rated circuit breaker – as part of the AC

MP Enclosure

Model

-30D 60 amps #6 A

MPSL

MPSL-60S 60 amps #6 AWG (65 amps) #6 AWG (75 amps)

MPSH-30D 125 Amps #1 AWG (130 amps) #2 AWG (130 amps)

MPDH-30D 125 Amps #1 AWG (130 amps) #2 AWG (130 amps)

Note - The recommended minimum wire sizes listed above are based on using copper wire with a minimum rating of 300V and at an ambient temperature of 30°C (86°F). If more than three cables are used together, a cable ﬁ ll factor de-rating may be needed. The insulation of the wire must be rated for the environmental condition in which it will be used (i.e., for residential use, THHN is commonly used).

Note - Refer to Section 3.11 to asssit in determining the appropiate ground conductors for the AC system based on the conductors used to/from the MP enclosure.

3.6.5

The following steps are basic guidelines for installing and connecting the AC wiring to and from the inverter (refer

4.0 for the speciﬁ c wiring diagrams for you particular MP enclosure.

Wiring External AC Source and AC Load Panel

. Route appropriate wires/cables from a dedicated breaker in the AC electrical main panel through

1 one of the MP enclosure’s knockouts to the AC input busbars (INPUT FROM GEN/GRID).

2. Route appropriate wires/cables (determined from Table 3-4) from the AC input busbars (OUTPUT TO INVERTER LOADS) through another MP enclosure knockout to the AC electrical sub-panel.

AC Conductor Wiring

WARNING: To prevent electrical shock, make sure all AC power (inverter, generator,

or utility) is off before making any AC connections inside the MP enclosure.

AC Output Breaker

(part of Bypass

Assembly)

to Figures 3-17 thru 3-19 depending on your particular model). Also see Section

Conductor Temperature Rating

75°C (167°F)

WG (65 amps) #6 AWG (75 amps)

90°C (194°F)

CAUTION: When connecting external AC wires to the MP enclosure, the proper phasing

sequence (i.e., throughout the installation process. Refer to the system installation drawings in Section

4.0 showing the proper phasing convention. In the event the power conductors from

the external AC source (i.e., generator or grid) or the wiring into or out of the inverters are not phased correctly, damage may occur.

Wiring Inverter AC Input/Output

1. Route the inverter’s AC input wires (previously connected in Section 3.3.3) to the top of the inverter AC input breaker(s) inside the MP enclosure (INPUT TO INVERTER).

2. Route the inverter’s AC output wires (previously connected in Section 3.3.3) to the inverter AC output busbars inside the MP enclosure (OUTPUT FROM INVERTER).

AC Wiring Inspection

After verifying all AC connections are correct, and all AC terminal screws are torqued correctly (refer to Tables 3-1 to 3-3), replace the covers on the main electrical panel/sub-panel.

LEG 1/HOT 1 = Black, and LEG 2/Hot 2 = Red) should be maintained

Page 40

3.0 Installation

IMPORTANT: AC - GROUND CONNECTION

(remove this green wire if the neutral is bonded

to ground either at the generator or grid source)

INV HOT 1 OUT (from inverter’s AC HOT 1 output)

INV HOT 2 OUT (from inverter’s AC HOT 2 output)

INV NEUTRAL OUT (from inverter’s AC NEUTRAL output)

AC NEUTRAL IN (from neutral of generator or grid)

AC LEG 1 IN (from L1 side of generator or grid)

AC LEG 2 IN (from L2 side of generator or grid)

GROUND BUSBAR

(inverter’s input and

output AC GROUND)

GROUND BUSBAR

(from generator/grid

ground and to AC

load panel ground)

OUTPUT FROM

NVERTER

INPUT TO

INVERTER

GROUND

OUTPUT TO

INVERTER LOADS

LOADS &

GEN/GRID

GROUND

INPUT FROM

GEN/GRID

INV NEUTRAL IN*

(to inverter’s

AC NEUTRAL input)

INV HOT 1 IN

(to inverter’s

AC HOT 1 input)

INV HOT 2 IN

(to inverter’s

AC HOT 2 input)

AC LEG 1 OUT

(to main breaker on L1

side in AC load panel)

AC LEG 2 OUT

(to main breaker on L2

side in AC load panel)

AC NEUTRAL OUT

(to NEUTRAL busbar

in AC load panel)

AC Connections (MPSL-30D and MPSH-30D Models)

* The INV NEUTRAL IN is not required if M

S-P

nverters are used (the neutrals

are common in these inverters).

Figure 3-17, MPSL-30D and MPSH-30D AC Wiring Connections

IMPORTANT: AC - GROUND CONNECTION

(remove this green wire if the neutral is bonded

to ground either at the generator or grid source)

INV HOT 1 OUT (from AC HOT 1 output on Leg 1 inverter)

INV HOT 2 OUT (from AC HOT 2

tpu

t on Leg 2 inverter when a

second inverter (Leg 2) is installed)

INV NEUTRAL OUT [from AC NE

RAL output on Leg 1 inverter

(and neutral output to Leg 2 when a se

cond inverter is installed)]

AC N

EUTRAL IN (from

neutral of generator or grid)

AC LEG 1 IN (from Leg 1 side of generator or grid)

AC LEG 2 IN (from Leg

de of generator or grid when a second inverter is installed)

GROUND BUSBAR

(inverter’s input and

output AC GROUND)

GROUND BUSBAR

(from generator/grid

ground and to AC

load panel ground)

OUT

PUT FROM

INV

ERTER

INPUT TO INVERTER

INVERTER

GROUND

OUTPUT TO

INVERTER LOADS

LOADS &

GEN/GRID

GROUND

INPUT FROM

GEN/GRID

INV NEUTRAL IN

[AC NEUTRAL to input

on Leg 1 inverter

(and input to Leg 2 when a

nd inverter installed)]

INV

HOT 1 IN

(to AC HOT 1 input

on Leg 1 inverter)

Note: If an additional

rea

ker is installed in this

position it becomes the

INV HOT 1 IN breaker.

The

adjacent breaker (original

HOT 1 IN) then becomes

the INV HOT 2 IN breaker.

AC LEG 1 OUT

(

main breaker on L1

side in AC load panel)

AC LEG 2 OUT

[to main breaker on L2

side in AC load panel

(from inverter’s AC

2 OUT or Leg 2

side of generator or

grid when a second

inverter is installed)

AC NEUTRAL OUT

(to

NEUTRAL busbar

in AC load panel)

AC Connections (MPSL-60S Models)

to be added fo

r second

inverter (Leg 2)

3.0 Installation

Figure 3-18, MPSL-60S AC Wiring Connections

Page 42

3.0 Installation

IMPORTANT: AC - GROUND CONNECTION

(remove this green wire if the neutral is bonded

to ground either at the generator or grid source)

AC NEUTRAL IN (from neutral of generator or grid)

AC LEG 1 IN (from L

1 side of

generator or grid)

AC LEG 2 IN (from L2 side of generator or grid)

GROUND BUSBAR

(inverter’s input and

output AC GROUND)

GROUND BUSBARS

(from generator/grid

ground and to AC

load panel ground)

INPUT TO

INVERTERS

INVERTER

GROUND

OUTPUT TO

INVERTER LOADS

LOADS &

GEN/GRID

GROUND

INPUT FROM

GEN/GRID

AC Connections (MPDH-30D Models)

INV HOT

1 OUT

(from each inverter’s

AC HOT 1 output)

INV HOT 2 OUT

(from each inverter’s

AC HOT 2 output)

INV NEUTRAL OUT

(from each inverter’s

AC NEUTRAL output)

OUTPUT FROM

INVERTER

INV NEUTRAL IN*

(to each inverter’s

AC NEUTRAL input)

INV HOT 1 IN

(to inverter 2

AC HOT 1 input)

INV HOT 2 IN

(to inverter 2 AC

HOT 2 input)

INV HOT 1 IN

(to inverter 1

AC HOT 1 input)

INV HOT 2 IN

(to inverter 1 AC

HOT 2 input)

AC LEG 1 OUT

(to main breaker on L1

side in AC load panel)

AC LEG 2 OUT

(to main breaker on L2

side in AC load panel)

AC NEUTRAL OUT

(to NEUTRAL busbar

in AC load panel)

* The INV NEUTRAL IN is not required if MS-PAE inverters are used (the neutrals are common in these inverters).

Figure 3-19, MPDH-30D AC Wiring Connections

3.0 Installation

3.7

DC Wiring

This section describes the DC wiring from inside the MP enclosure to the inverter, and from the MP enclosure to the battery bank.

If installing optional DC breakers, see Section A6 in Appendix A.

Info:

3.7.1

• When the inverter is installed in a Photovoltaic System, the NEC requires that the DC circuit conductors and overcurrent devices to the inverter be sized to carry not less than 125% of the inverter’s maximum current rating.

• The DC positive and negative cables from the battery bank should be tied together with wire ties or electrical tape approximately every six inches. This helps improve the surge capability and reduces the effects of inductance, which improves the inverter waveform and reduces the wear of the inverter’s ﬁ lter capacitors.

• Crimped and sealed copper compression lugs with a 3/8” hole should be used to connect the battery cables to the DC Disconnect Breaker and the DC Shunt busbar inside the MP enclosure.

• The battery bank voltage MUST match the DC voltage required by the inverter (i.e., 24-volt battery bank for a 24-volt inverter), or the inverter may be damaged.

• The DC cables must be of a type listed for use in conduit (i.e., THHN, RHW or THW).

• To ensure the maximum performance from the inverter, all connections from the battery bank to the inverter through the MP enclosure should be minimized, the exception is the DC circuit breaker in the positive line and the DC shunt in the negative line. Any other additional connection will contribute to additional voltage drops and may loosen during use.

• All wiring to the inverter and battery terminals should be checked periodically (once a month) for proper tightness. Refer to the torque requirements in Tables 3-1 to 3-3.

• After making the battery connections and ensuring they are properly tightened, cover the outside of the connection jelly/anti-corrosion grease between the terminal and the battery cable.

• Ensure the color code for the DC cables/wires are correct: RED for positive (+); WHITE for negative (-); and GREEN, GREEN with YELLOW stripe, or bare for DC equipment grounds.

DC Wiring Guidelines

WARNING:

inside the MP enclosure may be energized - DO NOT TOUCH. Disconnect all power sources before removing the cover.

WARNING: Even signiﬁ cant hazards are present because of the high current available, particularly if the battery system has a short circuit.

CAUTION: Before wiring the of this manual and the following information to ensure a safe and long-lived system.

CAUTION: If you are using ﬁ ne-stranded DC cables, the crimp or compression lug used must be Failure to use the proper terminal may cause the connection to heat-up, and it may eventually fail or become a ﬁ re hazard.

CAUTION: DO NOT connect the battery cables to the inverter until all wiring is complete, and the correct DC voltage and polarity ha

During

normal

though the DC voltage/battery bank is considered “low voltage”,

speciﬁ cally marked or labeled for use with ﬁ ne-stranded conductors.

with petroleum jelly or an antioxidant grease/spray. Do not put

operation the terminals, busbars, and electrical components

DC cables, review the safety information at the beginning

ve been veriﬁ ed.

Page 44

3.0 Installation

3.7.2 Inverter DC Overcurrent Protection and DC Disconnect

a battery-based inverter system, the NEC/CEC assumes that each ungrounded conductor is

In connected and could potentially damage that conductor under fault conditions. Because of this, the NEC/ CEC requires that all ungrounded conductors in the inverter’s DC system be protected by an overcurrent device, this can be either a circuit breaker or fuse. These breakers or fuses are not intended to protect equipment from damage, but protect the conductor/wire from overheating which may potentiality cause a ﬁ re. This means the overcurrent device is required to open before the conductor reaches its maximum current carrying capability, thereby preventing a ﬁ re.

The NEC also requires the inverter system to have a DC disconnect switch to allow service providers to isolate the inverter from the battery. The disconnect must be either a DC rated circuit breaker or switch.

The MP enclosure is provided with a 250 amp UL listed, high interruption capacity, magnetichydraulic, DC rated circuit breaker. These breakers are designed to interrupt the tremendous amount of current a battery can deliver when short-circuited. They are also speciﬁ cally designed to have a long enough time delay to prevent the breaker from tripping, as the inverter requires high current levels when powering heavy loads.

If the battery cables to the inverter are no longer than ﬁ ve feet and the wire size is a minimum #4/0 AWG1 , the circuit breakers in the MP enclosure can provide the inverter system with both the DC overcurrent protection device and a safety disconnect switch.

If your battery to inverter cable length is greater than ﬁ ve feet, the DC wire size will need to be increased. Longer distances cause an increase in resistance, which affects the performance of the inverter.

If your battery to inverter cable size is smaller than the recommended minimum DC wire size (#4/0 AWG1), you must install a fuse/circuit breaker close to the battery bank that is compatible with this smaller cable to protect against a potential ﬁ re.

some

source

that supplies currents in excess of the ampacity rating of the conductor

CAUTION: In a DC wire to achieve maximum efﬁ ciency and to reduce ﬁ re hazards associated with overheating. Always keep your wire runs as short as practical to help prevent low voltage shutdowns.

Info: Circuit breakers or fuses that are used on the DC side must be UL listed and DC rated for the application.

3.8.2.1

When installing multiple inverters, the MP enclosure provides the space to add a 250 amp breaker, for each additional inverter. These breakers — along with all the wires and hardware — are provided with the MPX Series Extension Kit.

All MP enclosures (except for the MPSH-30D) provide space to ﬁ eld install additional DC breakers for use as DC input/output breakers for PV, charge controllers, or DC loads. See Section A6 for more information.

Note 1 - Wire must be copper with a minimum rating of 300V, 75°C at an ambient temperature of 30°C.

Optional DC Breakers/Disconnects

low voltage/high amperage system, it is important to use the correct

3.0 Installation

3.7.3 DC Hardware Connections

Do not put anything between the DC cable lug and the DC terminals (i.e., on the Inverter DC Disconnect, DC shunt busbars, these connections is stacked correctly. Incorrectly installed hardware causes a high resistance connection which could lead to poor inverter performance, and may melt the cable and terminal connections. Follow Figure 3-20 to connect the DC cables and stack the hardware correctly.

batteries, or inverter terminals). Ensure the hardware used to hold

Info: A

fter making the battery connections a

d ensuring they are properly torqued,

cover the outside of the connection with petroleum jelly or an antioxidant grease/spray. Do not put jelly/anti-corrosion grease between the terminal and the battery cable.

Inverter Hardware Stack-up:

Inverter DC Terminals

INVERTER DC NEGA

POSITIVE CONNECTIONS

MAGNUM INVERTER

TIVE

AND

BATTERY POSITIVE CONNECTION TO

Inverter Cable Lugs [(-) to Shunt Busbar,

(+) to Inverter DC Breaker] 5/16-18 Nut (Flange or Kep)

DO NOT Place anything between the inverter DC terminals and the

inverter cable lugs.

DC BREAKER (BOTTOM)

Bottom of Inverter DC Breaker

Hardware Stack-up:

DC Breaker Terminal

Positive (+) Battery Cable Lug

Split-lock washer

Hex Bolt (3/8-16)

DO NOT place anything between

the DC breaker terminal and the

positive battery cable lug.

ENCLOSURE

Figure 3-20, DC Hardware Connections

BATTERY NEGATIVE CONNECTION TO SHUNT BUSBAR (BOTTOM

Bottom of Shunt Busbar

Hardware Stack-up:

DC Shunt Busbar

Hex Bolt (3/8-16)

Negative (-) Battery Cable Lug

Split-lock washer

5/16-18 Nut

DO NOT place anything between

the DC Shunt busbar and the

negative battery cable lug.

)

Page 46

3.0 Installation

3.7.4 Wiring the Battery Bank

Depending batteries interconnecting DC cables should be the same size and rating as those used between the battery bank and the inverter.

Place the batteries as close as practical to the MP enclosure/inverter system, preferably in an insulated and ventilated enclosure. Allow adequate space above the batteries to access the terminals and vent caps (as applicable). Also allow at least 1” of space between the batteries to provide good

air ﬂ ow. DO NOT mount the batteries directly under the MP enclosure/inverter system.

upon the voltage of the batteries used in the installation (2V, 6V, or 12V DC), the

must

wired

in series, parallel, or series-parallel to provide the correct voltage. The

Info: To ensure the best performance from the MP enclosure/inverter system, batteries should

3.7.4.1 Wiring the MP enclosure to the Battery Bank/Inverter

WARNING: Ensure that

or disconnecting the battery cables, and that all sources of power (both AC and DC) are disconnected from the inverter.

WARNING: Lethal currents to the battery bank touch each other. During the installation and wiring process, ensure the cable ends are insulated or covered to prevent touching/shorting the cables.

CAUTION: DO NO accessory wiring are completed, 2) the correct DC and AC overcurrent protection have been installed and, 3) the correct DC voltage and polarity have been veriﬁ ed.

CAUTION: The Magnum inverter is NOT reverse polarity protected. Before making the ﬁ the correct battery voltage and polarity. If the positive (+) terminal of the battery is mistakenly connected to the negative (–) terminal of the inverter and vice versa, the inverter will be damaged and will not be covered under warranty. Color code the cables to avoid polarity confusion.

The following steps are basic guidelines for installing and connecting the DC wiring into and out of the MP enclosure (refer to Figures 3-21 thru 3-23 depending on your particular model). Also see Section 4.0 for the speciﬁ c wiring diagrams for your particular MP enclosure.

1. Route the DC cables from inside the MP enclosure and connect them to the inverter’s DC terminals; the negative cable (-) from the top side of the DC shunt busbar to the inverter’s DC negative terminal, and DC positive terminal. Be careful to observe proper polarity.

2. Route the DC cables from the battery bank — with the cables not connected to the battery — and connect them to the MP enclosure; negative (-) to the bottom side of the DC shunt busbar, positive (+) to the bottom side of the DC breaker. Be careful to observe proper polarity.

3. Ensure the DC wire connections (on the batteries, inverter, DC circuit breaker, and DC shunt busbars) are ﬂ ush on the surface of the DC terminals and the hardware used to hold these connections are stacked correctly (see Figure 3-20); and then securely tighten these DC connections (refer to the torque requirements in Table 3-2).

the same size, type, rating, and age. Do not use old or untested batteries.

all AC and DC breakers are switched OFF before connecting

will be present if the positive and negative cables attached

T connect the DC wires to the battery bank until: 1) all DC, AC, and

nal DC connection from the batteries to the inverter, use a voltmeter to verify

the positive cable (+) from the top side of the DC breaker to the inverter’s

CAUTION: Only after should the DC circuit breaker be closed to provide power to the inverter.

4. Route an appropriately sized DC grounding wire (green or bare wire) from the inverter’s DC equipment ground terminal and from the battery bank enclosure to the DC GROUND busbar in the MP enclosure. Refer to Section 3.11 for grounding information and sizing the DC ground wires.

the entire installation is complete and all connections are veriﬁ ed

3.0 Installation

DC8A

DC6

DC8B

DC1

DC2

DC4

DC7

DC5

DC3

3.7.5 DC Wiring Connection Points

Figures 3-21 thru 3-23 show the connection points for the DC wiring inside the MP enclosures.

DC NEGA

ONNECTION

ADDITIONAL INVERTER

DC NEGA

NEGATIVE

ADDITIONAL BATTERY BANK

NEGATIVE

DC EQUIPMENT

GROUNDING

CONNECTION

TIVE CABLE

TO INVERTER

TIVE

ABLE CONNECTION

BATTERY BANK

CABLE CONNECTION

DC POSITIVE

ONNECTION TO INVERTER

ABLE

BATTERY BANK

POSITIVE C

DC GROUNDING

ELECTRODE

CONNECTIONS

DC CONNECTIONS

UNDER

(

DISCONNECT)

ABLE CONNECTION

THE

DC1

DC2

DC3

DC4

DC5

DC6

DC7

DC8

Figure 3-21, DC Wiring Connection Points for MPSL Models

Inverter’s DC Negative Cable Connection - Cable connection to Magnum inverter’s DC negative terminal. Electrically connected to the top of the DC shunt.

Inverter’s DC Positive Cable Connection - Cable connection to Magnum inverter’s DC positive terminal. Electrically connected to the top of the inverter’s DC disconnect.

Additional Inverter DC Negative Cable Connection - Provided so that as more inverter’s are added, cables can be added and connected to the inverter’s DC negative terminals.

Battery Bank Negative Cable Connection - DC Negative Busbar connection (bottom connection of DC shunt); connects cables to the battery bank’s negative terminal.

Additional Battery Bank Negative Cable Connection - Provided to connect additional cables to the battery bank’s negative terminal when additional Magnum inverters are installed.

Battery Bank Positive Cable Connection - Bottom of the inverter’s DC disconnect breaker; connects the battery cable to the battery bank’s positive terminal.

DC Equipment Grounding Connection - This busbar is used as the common DC equipment ground point for all DC equipment connected in the MP/inverter system.

DC Grounding Electrode Connections - These are the connection points for the MP/ inverter system to the DC grounding electrode. Use DC8A for #6 to #1/0 AWG wires, and DC8B for greater than #1/0 AWG wires.

Page 48

3.0 Installation

DC8A

DC6

DC8B

DC1 DC2

DC4

DC7

DC5

DC3

DC NEGA

ONNECTION

ADDITIONAL INVERTER DC

EGA

NEGATIVE

ADDITIONAL BATTERY BANK

NEGATIVE

DC EQUIPMENT

GROUNDING

CONNECTION

TIVE CABLE

TO INVERTER

TIVE

CABLE CONNECTIONS

BATTERY BANK

CABLE CONNECTION

CABLE CONNECTIONS

DC POSITIVE

ONNECTION TO INVERTER

ABLE

POSITIVE C

DC GROUNDING

ELECTRODE

CONNECTIONS

BATTERY BANK

ABLE CONNECTION

DC CONNECTIONS

(

THE

UNDER

DISCONNECT)

DC1

DC2

DC3

DC4

DC5

DC6

DC7

DC8

Figure 3-22, DC Wiring Connection Points for MPSH-30D

Inverter’s DC Negative Cable Connection - Cable connection to Magnum inverter’s DC negative terminal. Electrically connected to the top of the DC shunt.

Inverter’s DC Positive Cable Connection - Cable connection to Magnum inverter’s DC positive terminal. Electrically connected to the top of the inverter’s DC disconnect.

Additional Inverter DC Negative Cable Connections - Provided so that as more inverter’s are added, cables can be added and connected to the inverter’s DC negative terminals.

Battery Bank Negative Cable Connection - DC Negative Busbar connection (bottom connection of DC shunt); connects cables to the battery bank’s negative terminal.

Additional Battery Bank Negative Cable Connections - Provided to connect additional cables to the battery bank’s negative terminal when additional Magnum inverters are installed.

Battery Bank Positive Cable Connection - Bottom of the inverter’s DC disconnect breaker; connects the battery cable to the battery bank’s positive terminal.

DC Equipment Grounding Connection - This busbar is used as the common DC equipment ground point for all DC equipment connected in the MP/inverter system.

3.0 Installation

DC8A

DC6

DC1

DC2

DC4

DC7

DC5

DC3

DC8B

INVERTER DC CONNECTIONS

ADDITIONAL INVERTER DC

EGA

BATTERY BANK

NEGATIVE

CONNECTIONS

POSITIVE C

DC EQUIPMENT

GROUNDING

CONNECTIONS

AC SIDE)

(IN

TIVE

CABLE CONNECTIONS

CABLE

BATTERY BANK

ABLE CONNECTIONS

DC POSITIVE

ABLE

CONNECTIONS

TO INVERTER

DC CONNECTIONS

UNDER

(

THE

NEGATIVE CABLE

ELECTRODE CONNECTIONS

DC NEGA

ABLE

ONNECTIONS

TO INVERTER

DC DISCONNECT)

ADDITIONAL

Y BANK

BATTER

CONNECTIONS

DC GROUNDING

TIVE

Figure 3-23, DC Wiring Connection Points for MPDH-30D (DC Side)

DC1

DC2

DC3

DC4

DC5

DC6

DC7

DC8

Inverter’s DC Negative Cable Connections - Cable connections to Magnum inverter’s

DC negative terminal. Electrically connected to the top of the DC shunt.

Inverter’s DC Positive Cable Connections - Cable connections to Magnum inverter’s DC positive terminal. Electrically connected to the top of the inverter’s DC disconnect.

Additional Inverter DC Negative Cable Connections - Provided so that as more inverter’s are added, cables can be added and connected to the inverter’s DC negative terminals.

Battery Bank Negative Cable Connections - DC negative busbar connections (bottom connection of DC shunt); connect cables to the battery bank’s negative terminal.

Additional Battery Bank Negative Cable Connections - Provided to connect additional cables to the battery bank’s negative terminal when additional Magnum inverters are installed.

Battery Bank Positive Cable Connections - Bottom of the inverter’s DC disconnect breaker; connect battery cables to the battery bank’s positive terminal.

DC Equipment Grounding Connections - These busbars are used as the common DC equipment ground point for all DC equipment connected in the MP/inverter system.

Page 50

3.0 Installation

3.8 Wiring Accessories

NEC/CEC requires the insulation of all conductors inside the MP enclosure to be rated for the

The highest voltage present. The MP enclosure is designed to work with inverters that provide 120/240V AC (i.e., MS-PAE Series), therefore, the voltage rating of the communications cables inside the MP enclosure must be rated for 300 volts or higher to be code compliant.

With the purchase of the MP enclosure, Magnum has included three six-foot, yellow communication cables with 300-volt rated insulation. These communications cables — shown below — are provided to make the connections between Magnum inverters and any accessories easier and code compliant.

Figure 3-27 shows a basic drawing for connecting accessories into and out of the MP enclosure. Refer to Section 4.0 for speciﬁ c communications wiring diagrams for your particular MP enclosure.

Info: These cables carry less than 30 volts and are thus considered a “limited energy circuit”, which is normally not required to be installed in conduit.

igure 3-24 shows the ‘REMOTE’ cable. It allows a remote control — such as the ME-RC (Remote Control), ME-ARC (Advance Remote Control), or ME-RTR (Router) — to be connected to the inverter through the MP enclosure. This cable is a 6’ (1.83 m), 4-conductor, telephone-type cable with a RJ14 (m) connector and a blue REMOTE label on each end. One end of this cable is connected to the remote, and the other end is routed inside the MP enclosure and then connected to the inverter’s REMOTE port.

Figure 3-24, REMOTE Communication Cable (300V Rated)

Figure 3-25 shows Magnum accessories — like the ME-AGS-N (Auto Generator Start - Network) or ME-BMK-NS (Battery Monitor - No Shunt) — to be connected to the inverter through the MP enclosure. This cable is a 6’ (1.83 m), 4-conductor, telephone-type with a RJ14 (m) connector and a green NETWORK label on each end. One end of this cable is connected to the accessory, and the other end is routed inside the MP enclosure and then connected to the inverter’s NETWORK port.

the ‘NETWORK’ cable. It allows

Figure 3-25, NETWORK Communication Cable (300V Rated)

Figure 3-26 shows the Magnum Battery Temperature Sensor (BTS) to be connected to the inverter through the MP enclosure. This is a 6’ (1.83 m), 4-conductor, telephone-type cable with a RJ14 (m) connector on one end and a RJ14 (f) plug on the opposite end. The female plug connects to the ME-BTS (Battery Temperature Sensor). After connecting to the ME-BTS, this extension cable is routed inside the MP enclosure and connects to the inverter’s BTS port.

the ‘EXTENSION’ cable. It allows

Figure 3-26, Extension Cable (300V Rated)

BTS

Extension Cable (300 volt rated)

ME-BTS

REMOTE

Communication Cable

(300 volt rated)

REMOTE

NETWORK

Communication Cable

(300 volt rated)

ME-AGS-N

ME-RTR

(ME-RC or ME-ARC)

3.0 Installation

Figure 3-27, Accessory Wiring Using 300 Volt Communications Cables

Page 52

3.0 Installation

3.9 Removing the NEUTRAL-GROUND Wire

The MP enclosure of ground for the AC system. The neutral to ground connection is done by connecting a green wire (Item 19, in Figures 2-7 and 2-8, Item 23 in Figure 2-9, or Item 13 in Figure 2-10a, depending on your MP model) between the AC NEUTRAL busbar and the GROUND busbar inside the MP enclosure.

In installations where the MP enclosure is powered from utility power or large permanently installed generator systems, the AC neutral to ground connection is normally provided inside the main AC electrical distribution panel. In these installations, the factory-installed NEUTRAL-GROUND wire in the MP enclosure must be removed to prevent multiple neutral to ground connections.

To remove the NEUTRAL-GROUND wire:

1. See Figure 3-28 below to help you locate the green wire with the NEUTRAL-GROUND CONNECTION label inside your MP enclosure.

2. Remove this green wire by loosening the screws on the AC NEUTRAL busbar and the GROUND busbar.

3. After this wire is removed, tighten the loose screws back into the busbars to prevent them from being lost.

is shipped with the AC neutral connected to ground to provide the single point

NEUTRAL-GROUND

Wire inside

MPSL/MPSH

NEUTRAL

Busbar

NEUTRAL-

UND

GRO

CONNECTION

(green wire)

NEUTRAL-GROUND Wire

inside MPDH (AC Side)

GROUND

Busbar

Figure 3-28, Removing the NEUTRAL-GROUND Wire

3.0 Installation

3.10 Removing the NEGATIVE-GROUND Busbar

The MP enclosure of ground for the DC system. This negative to ground connection is done by connecting the DC Shunt (battery negative connection point) to the DC Ground Stud using the NEGATIVE-GROUND busbar. If a negative to ground connection is made elsewhere in the DC system — either at the battery terminal, inside a charge controller, or if you are installing a PV-Ground Fault Protection (PVGFP) device — this busbar must be removed to prevent multiple negative to ground connections.

Step 1, Remove Plate and Locate NEG-GND Busbar

is shipped with the DC Negative connected to Ground to provide the single point

Follow the steps below to remove the NEG

ATIVE-GROUND busbar (refer to

NEGATIVE-

GROUND

busbar

the diagram to the left to help locate the components discussed):

1. Remove the Shunt Access Plate on the right side of the MP enclosure.

Ground

Stud

Locate the NEGATIVE-GROUND busbar (Item 27, in Figure 2-9; or Item 29, in Figures 2-7, 2-8 or 2-10b - depending on your MP model) attached to the DC Shunt.

Shunt

2. Remove the 5/16” ﬂ ange nut (1/2” wrench) holding the busbar to the DC Ground Stud and then remove the 3/8” brass bolt and washer (9/16” wrench) from the top terminal of the DC Shunt.

3. Remove the NEGATIVE-GROUND busbar.

4. Reattach the ﬂ ange nut on the DC

Shunt

Access Plate

Ground Stud and the brass bolt/ washer back onto the DC Shunt. Ensure the hardware on the top ter-

MP Enclosure

minal of the DC Shunt is stacked/ reattached and torqued correctly.

Note: The DC Shunt hardware is shown correctly stacked in the Step 4 diagram below.

Step 2, Remove

Shunt Hardware

Figure 3-29, Removing the NEGATIVE-GROUND Busbar

Step 3, Remove the

NEGATIVE-GROUND Busbar

Step 4, Reattach

Shunt Hardware

Page 54

3.0 Installation

OURCE

MAIN AC PANEL

.HOT1

.NEUT

.GND

.HOT2

.DC SIDE

.AC SIDE

MP ENCLOSURE

SOURCE

AC and DC sides shared

DC side dedicated

AC side dedicated

DC Electrical

System

AC Electrical

System

Grounding System

.GND

.POS

.NEG

HOT 1

HOT 2

NEUT

GBB

SBJ

GEC-DC

GEC-AC

GBB

SBJ

MAGNUM

NVERTER

BAT

GC-DCGC-AC

EGC

3.11 MP/Inverter System Grounding

MP/inverter system uses both AC and DC electrical systems, therefore each electrical system

The is required to be properly connected to a permanent, common “ground” or “earth” reference. A MP/inverter system that is properly grounded limits the risk of electrical shock, reduces radio frequency noise, and minimizes excessive surge voltages induced by lightning. To understand how the conductors in the electrical circuit will be connected to the system ground, the following terms should be understood (also refer to Figure 3-30):

• Grounded Conductor (GC): The wire/cable in the electrical system that normally carries current (usually the AC neutral and/or the DC negative), and is intentionally connected or “bonded” to the ground system. This wire, or the ends of this wire, must be colored white or gray.

• Equipment Grounding Conductor (EGC): A wire/cable that does not normally carry current and is used to connect the exposed metal parts of equipment — that might be accidentally energized — to the grounding electrode system or to the grounded conductor. This wire, or the ends of this wire, must be green or green with a yellow stripe; or, this wire can be bare copper.

• Grounding Electrode Conductor (GEC): The wire/cable that does not normally carry current, and connects the grounded conductor and/or the equipment grounding conductor at the service equipment (i.e., equipment delivering the electrical energy) to the grounding electrode.

• Grounding Electrode (GE): A ground rod or conducting element that establishes an electrical connection to the earth or common ground reference.

• System Bonding Jumper (SBJ): The connection between the grounded circuit conductor in the electrical system and the equipment grounding conductor at a separately derived system.

There are two types of grounding — equipment grounding and system grounding. The exposed metal parts of the equipment in the system usually don’t carry electricity. However, if

the exposed metal becomes electriﬁ ed by a live wire, a person touching this live part could complete the electrical circuit and receive a shock. Equipment grounding prevents shock by connecting all the exposed metal parts of equipment (via Equipment Grounding Conductors - EGC) together at a common ground point (Ground BusBar - GBB). This common ground point — installed in the service disconnect panel for each electrical system (AC and DC) — is then connected (via Grounding Electrode Conductor - GEC) to the common ground reference, such as a ground rod (Grounding Electrode - GE). This connection to earth is made at only one point in each electrical system; otherwise, parallel paths will exist for the currents to ﬂ ow. These parallel current paths would represent a safety hazard and are not allowed in installations wired per the NEC/CEC.

System grounding takes one of the current-carrying conductors (Grounded Conductor - GC) and attaches it to the common ground point (Ground BusBar - GBB), usually by a System Bonding Jumper (SBJ) in each electrical service disconnect panel. On the AC side, that is the neutral conductor (GC-AC); on the DC side, it’s the negative conductor (GC-DC). The closer the grounding connection is to the source, the better the protection from high voltage surges due to lightning.

Figure 3-30, Grounding System for Inverter with MP Enclosure

3.0 Installation

OURCE

MAIN AC PANEL

.HOT 1

.NEUT

.GND

.HOT 2

.DC SIDE

.AC SIDE

MP ENCLOSURE

SOURCE

DC side dedicated

DC Electrical

Syst

AC Electrical

System

Grounding System

.GND

.POS

.NEG

GBB

SBJ

GEC-DC

GBB

SBJ

MAGNUM

NVERTER

GEC-AC

GC-DC

BAT

GC-AC

HOT 1

HOT 2

NEUT

BAT

EGC

3.11.1 Sizing the Grounding Electrode Conductors

AC Side

the largest ungrounded conductor feeding the AC load center. One #8 AWG (8.4 mm2) copper conductor will serve as an AC grounding electrode conductor for AC power conductors smaller than and including #2 AWG (33.6 mm2) copper. See Table 3-6 for additional values.

- The size of the AC Grounding Electrode Conductor (GEC–AC) depends on the size of

Table 3-6, AC Grounding Electrode Conductor Sizing

Size of Largest Ungrounded

Conductor

#2 A

WG or smaller

#1 to #1/0 A

#2/0 or #3/0 AWG

Over #3/0 AWG

through 350 kcmil

Minimum Size of Grounding

Electrode Conductor

WG (8.4 mm

#8 A

#6 AWG (13.3 mm

#4 AWG (21.1 mm

#2 AWG (33.6 mm

)

DC Side - To size the DC grounding electrode conductor, ﬁ rst determine which one of the following three methods will be used to connect the DC and AC grounding points in the inverter’s two electrical systems (AC and DC) to the common “earth” ground.

Info: There are many variables to consider when choosing the size of the DC grounding electrode conductor

. The MP enclosure provides the means to ground both the AC and DC to a single ground, and when feasible, the Single Connection to Ground (Method 1) is recommended. With this method the NEC allows a #6 AWG wire, which makes the overall installation simpler and less costly.

1. Single Connection to Ground (Method 1): The AC Grounding Electrode Conductor (GEC–AC) is bonded to the DC ground point and the DC Grounding Electrode Conductor (GEC–DC) is the only connection to the grounding electrode, which must be a rod, pipe, or plate electrode (see Figure 3-31).

Normally the size of the DC grounding electrode conductor must be no less than the size of the battery bank’s negative cable. However, in this method, since there is only one connection to the ground rod the NEC allows an exception. The DC grounding electrode conductor is not required to be larger than #6 AWG (13 mm2) copper. The reasoning for allowing this smaller grounding electrode conductor is that it is only required to stabilize the system voltage with respect to earth, and the other properly-sized conductors in each electrical system will safely carry any fault currents if they occur.

Figure 3-31, Single Connection to DC Ground Rod (Method 1)

Page 56

3.0 Installation

SOURCE

MAIN AC PANEL

.HOT 1

.NEUT

.GND

.HOT 2

.DC SIDE

.AC SIDE

MP ENCLOSURE

SOURCE

AC and DC sides shared

DC Electrical

System

AC Electrical

System

Grounding System

.GND

.POS

.NEG

GBB

GEC-AC

GBB

MAGNUM

NVERTER

GEC-DC

SBJ

GC-DC

GC-AC

HOT 1

HOT 2

NEUT

BAT

EGC

SOURCE

MAIN AC PANEL

.HOT 1

.NEUT

.GND

.HOT 2

.DC SIDE

.AC SIDE

MP ENCLOSURE

SOURCE

DC side dedicated

AC side dedicated

DC Electrical

System

AC Electrical

System

Grounding System

.GND

.POS

.NEG

GBB

GEC-AC

GBB

MAGNUM

NVERTER

GEC-DC

SBJ

GC-DC

GC-AC

BAT

HOT 1

HOT 2

NEUT

EGC

2. Multiple Connections to Ground - Single Electrode (Method 2): When the

AC and DC service panels are near each other, then the AC Grounding Electrode Conductor (GEC–AC) and DC Grounding Electrode Conductor (GEC–DC) can be connected to a single grounding electrode (see Figure 3-32). In this method — since there are multiple connections to the DC grounding electrode — the size of the DC grounding electrode conductor cannot be smaller than the largest conductor in the DC system (usually the battery-to-inverter cable).

Figure 3-32, Multiple Connections to DC Ground Rod (Method 2)

3. Multiple Connections to Ground - Multiple Electrodes (Method 3): This method a separate grounding electrode for the DC system and the AC system (see Figure 3-33). In this method — since there are multiple connections to the DC Grounding Electrode (GEC–DC) — the size of the DC grounding electrode conductor cannot be smaller than the largest conductor in the DC system (usually the battery-to-inverter cable).

The DC Grounding Electrode (GE–DC) must be bonded to the AC Grounding Electrode (GE–AC) to make a grounding electrode system; this Bonding Conductor (BC) cannot be smaller than the largest grounding electrode conductor, either AC or DC.

Figure 3-33, Multiple Connections to DC Ground Rod (Method 3)

uses

3.0 Installation

3.11.2

Equipment Grounding Conductor

The MP enclosure and all other non-current carrying exposed metal surfaces in the entire electrical

yst

em that may be accidentally energized must be grounded. The equipment-grounding conductor

s must be sized to safely carry the maximum ground-fault current likely to be imposed on it from where a ground-fault may occur.

AC Side - When the inverter’s AC input circuit breaker provided in the MP enclosure is being used as the inverter’s AC overcurrent protection device, the AC Equipment Grounding Conductor (EGC–AC) for the inverter is based on the AC breaker size provided (#10 AWG for all MP models). Connect the AC equipment-grounding conductor from the inverter’s AC ground connection to the AC Ground Busbar (GBB) in the MP enclosure (Item 25 in Figure 2-7 or 2-8, Item 22 in Figure 2-9, or Item 16 in Figure 2-10a - depending on your MP model).

DC Side - When the DC circuit breaker provided in the MP enclosure is being used as the inverter’s DC overcurrent protection device, the DC Equipment Grounding Conductor (EGC–DC) for the inverter should be #4 AWG, which is based on the 250 amp DC breaker size provided. Connect the DC equipment-grounding conductor from the inverter’s DC ground connection to the DC Ground Busbar (GBB) in the MP enclosure (Item 27 in Figures 2-7 or 2-8, Item 25 in Figure 2-9, or Item 26 in Figure 2-10b - depending on your MP model). If you are using AC or DC overcurrent protection that is different than that provided in the MP enclosure or installing optional DC breakers inside the MP enclosure, in accordance with the NEC/ CEC you must determine your equipment-grounding conductors based on the ampere rating of the overcurrent device protecting the circuit conductors. Use Table 3-7 to help determine the equipment-grounding conductor. If the circuit conductors are oversized to compensate for voltage drop, the equipment-grounding conductor must also be oversized proportionally.

Table 3-7, Equipment Grounding Conductor Sizing

Rating of Overcurrent Device Minimum Size of Copper Ground Wire

15 amp #14 AWG

20 amp #12 AWG

30 - 60 amp #10 A

100 amp #8 AWG

200 amp #6 AWG

300 amp #4 AWG

400 amp #3 AWG

3.11.3 System Bonding Jumper

The MP enclosure provides the single point of ground [System Bonding Jumper (SBJ)] for the AC

DC system. If

and in an off-grid system) and there is no other connection to ground from neutral (in the AC system) or negative (in the DC system), then leave the ground bond connections in place. Remove any other neutral to ground connection in the AC system, such as in other electrical sub-panels; or, any negative to ground connection in the DC system. For utility connected systems where the neutral and ground are already bonded in the main utility circuit breaker box (AC distribution panel), the NEUTRAL-GROUND wire MUST BE REMOVED from the MP enclosure. See Section 3.9 to remove this neutral to ground connection.

Info: Inverters and portable generators that have electrical outlets usually have the neutral to be connected to the MP/inverter system as they would ﬁ rst need to be modiﬁ ed to separate the neutral and ground bonding internally.

For systems or devices that connect the DC negative to ground independently (i.e., separate DC main electrical distribution panel or PV-GFP device), the NEGATIVE-GROUND busbar (Item 27 in Figure 2-9, or Item 29 in Figures 2-7, 2-8 and 2-10b - depending on your MP model) MUST BE REMOVED inside the MP enclosure. See Section 3.10 to remove this negative to ground connection.

the MP enclosure is the central connection point for all ground wiring (usually

and ground bonded internally. These types of devices are not recommended

Page 58

3.0 Installation

3.12 Installation Checklist

Use this checklist have been completed before proceeding with the functional test.

Mounting

❐ The MP enclosure/inverter system is securely mounted in a clean, dry, and ventilated area. ❐ The MP enclosure/inverter system is not mounted in the same enclosure as maintenance-free

or vented type batteries.

❐ The MP enclosure is mounted in a ‘vertical only’ position. ❐ There is adequate clearance to access the front and to view/adjust the remote (if installed).

DC Wiring

Inverter Side:

❐ The inverter is correctly placed on the MP enclosure with the inverter’s DC terminals attached

to the inverter DC negative and positiv

Battery Bank Side:

❐ An appropriately sized DC cable is routed from the positive (+) battery terminal and attached

to the bottom terminal of the inverter DC disconnect breaker inside the MP enclosure.

❐ An appropriately sized DC cable is routed from the negative (-) battery terminal and attached

to the busbar which is connected to the bottom terminal of the DC shunt inside the MP enclosure.

❐ The DC hardware is stacked correctly (refer to Figure 3-20). ❐ The DC cable connections are torqued correctly (refer to Tables 3-1 to 3-3).

AC Wiring

❐ To Inverter: The AC wires are appropriately sized and routed from the inverter AC Input breaker(s)

inside MP enclosure to the inverter’s AC input terminals.

❐ From Inverter: The AC wires are appropriately sized and routed from the inverter’s AC output

terminals to the AC output busbars (INV HOT 1 OUT, INV HOT 2 OUT, AC NEUTRAL and GROUND) inside MP enclosure.

❐ To Main AC Electrical Panel: The AC wires are appropriately sized and are routed from the AC

input busbars (AC LEG 1 IN, AC LEG 2 IN, AC NEUTRAL and GROUND) inside MP enclosure to the circuit breaker in the main AC electrical panel (i.e., main panel) powered by the generator or grid. Use Table 3-4 to determine the AC wire size to/from the MP enclosure.

❐ To Inverter AC Load Panel: The AC wires are appropriately sized and routed from the AC output

busbars (AC LEG 1 OUT, AC LEG 2 OUT, AC NEUTRAL and GROUND) inside MP enclosure to the main circuit breaker in the electrical panel powered by the inverter (i.e., sub-panel). Use Table 3-4 to determine the AC wire size to/from the MP enclosure.

❐ AC wires connected to the busbars/circuit breakers are torqued correctly (see Tables 3-1 to 3-3).

Grounding

❐ There is only one bonding connection to ground for the DC electrical system (negative to ground)

and one bonding connection to ground for the AC electrical system (neutral to ground). These bonding connections may be connected to the same grounding electrode system (ground rod). If separate electrodes are used, they must be bonded together.

❐ The exposed metal parts of equipment are properly grounded. ❐ Equipment grounding conductors are properly sized.

Electrical Connections

❐ Connectors are listed for the intended use and environment (inside, outside, wet, etc.). ❐ Pressure/screw terminals tightened to the recommended torque speciﬁ cation. ❐ Terminals containing more than one conductor are listed for multiple conductors. ❐ Connectors using ﬂ exible, ﬁ ne-stranded conductors are listed for use with such conductors. ❐ All electrical terminal connections in the inverter are re-torqued to tighten any connections that

may have loosened since the initial installation.

as a ﬁ nal review to ensure all essential steps of the MP enclosures installation

e cables inside the MP enclosure.

3.0 Installation

Conductors and General Wiring Methods

❐ Conductors are rated for the application and the environment. ❐ Standard building-

Note: Welding, marine, locomotive (DLO), and auto battery cables don’t meet NEC/CEC requirements. Flexible RHW or THW cables are available, but these cables require very limited, specially listed terminals. When the battery conductors leave the battery enclosure, the conductors must be of a type listed for use in conduit (RHW or THW).

❐ The DC and AC color codes for the ground conductors are the same – grounded conductors are

white and equipment-grounding conductors are green, green/yellow, or bare (no insulation).

❐ All wiring insulation have a minimum rating of 150V, 75°C when using only 120V AC power/

inverter; or, with a minimum rating of 300V, 75°C when using 120/240V AC power/inverter.

❐ Strain reliefs/cable clamps or conduit are used on all cables and cords. ❐ Conductors between the inverter and battery bank are installed in conduit. ❐ No multi-wire branch circuits when single, 120V AC inverters are connected to 120/240V AC

load centers. Note: A multi-wire branch circuit is a three-wire circuit with a shared neutral for two, 120V AC

branch circuits.

Overcurrent Protection

❐ Properly sized and rated disconnects and overcurrent devices are used in the ungrounded

conductors in each circuit (AC and DC).

❐ Overcurrent devices in the DC circuits are listed for DC operation. ❐ DC overcurrent protection is provided at the batteries when they are located in a separate room,

or more than ﬁ ve feet away from the MP enclosure.

❐ The DC overcurrent protection device and battery cables to the inverter are sized for the inverter’s

DC input current. Note: Inverter’s DC input current is calculated using rated AC output in watts, divided by lowest

battery voltage, divided by inverter efﬁ ciency at that power level.

❐ When the inverter DC disconnect breaker inside the MP enclosure is not used as the DC overcurrent

device, high interrupt, listed, DC-rated fuses or circuit breakers must be used in the battery cable circuits.

wire conductors and appropriate wiring methods are used.

Batteries

❐ Battery terminals and other live parts are guarded, and adequate working space around the

battery bank is provided.

❐ Batteries are installed in well-vented areas (garages, outbuildings), and not in living areas. ❐ Adhere to the “IMPORTANT BATTERY SAFETY INSTRUCTIONS” at the beginning of this manual.

Marking

❐ Battery bank is labeled with maximum operating voltage, equalization voltage, and polarity. ❐ Utility Back-up Systems: Exterior visible sign indicating the building contains an inverter back-

up system and identiﬁ es the locations of the disconnects.

❐ An electrical system supplied by a 120V AC only inverter includes a label warning against

connecting multi-wire branch circuits.

❐ All required “Warning” and “Caution” signs/labels are installed in the proper locations, as required

in the NEC/CEC.

Inspection

❐ Electrical inspection complete and a Certiﬁ cate of Electrical Inspection has been issued by the

local Authority Having Jurisdiction (AHJ). The local AHJ or inspector has the ﬁ nal say on what is or is not acceptable. Local codes may modify the requirements of the NEC/CEC.

Part of this checklist is obtained from the Photovoltaic Electrical Power Systems Inspector/Installer Checklist created by John Wiles, Southwest Technology Development Institute, New Mexico State University, June 2006.

Page 60

3.0 Installation

Multimeter (DC Volts)

MPDH-30D

(DC Side)

Multimeter

(DC Volts)

3.13 Functional Test

After all electrical the electrical panel have been completed, follow the steps below to test the installation of the MP enclosure and to verify proper operation of the AC breakers.

connections from the MP enclosure to the inverter, batteries, AC source, and

WARNING: Du

ring this functional test, the front cover is removed and exposes personnel to potential dangerous voltages and shock hazards inside the MP enclosure that may cause damage, injury, or death. If you do not have experience working with AC and DC voltage circuits, do not attempt this test – use an experienced electrical installer.

CAUTION: During this functional test, if any step cannot be veriﬁ ed or is incorrect, stop and recheck/correct the connections before proceeding to the next step

Turn OFF all breakers (i.e., DC Disconnect, INV BYP, AC OUT, and INV IN) in the MP enclosure.

2. Perform DC voltage/polarity checks (refer to Figure 3-34 for single enclosures or Figure 3-35 for dual enclosures):

a. Use a DC voltmeter or multimeter (set to DC Volts) and place the negative (-) meter probe (usually black) on the negative battery busbar (bottom of the DC shunt). Then place the positive (+) meter probe (usually red) at the bottom of each DC breaker. Verify the battery voltage is correct for your particular inverter model (i.e., 24-volt battery bank for a 24-volt inverter).

b. Ensure the voltmeter reading is a positive number. When the probes are connected correctly (positive probe on DC circuit breaker and negative probe on battery negative busbar) and the number is positive, the polarity of the battery voltage is correct.

If the battery voltage and polarity are correct, apply battery power to the inverter by turning the inverter DC disconnect breaker(s) to the ON (up) position.

Figure 3-34, DC Voltage Checks -

Single Enclosures

Figure 3-35, DC Voltage Checks -

Dual Enclosures (DC Side)

3.0 Installation

3. AC break Note: For the following steps, refer to Figure 3-36 for MPSL-30D and MPSH-30D models, Figure

3-37 for the MPSL-60S models, and Figure 3-38 for MPDH-30D models.

a. Now that the appropriate battery voltage is connected to the inverter, turn OFF all inverter

loads in the inverter load panel (i.e., sub-panel) and turn the inverter ON.

b. Connect an AC voltmeter (or multimeter set to AC Volts) to the Inverter AC Output

Terminals and verify the correct AC voltage from the inverter. Refer to Figure 3-36, 3-37, or 3-38 (depending on your MP model) to determine the correct inverter AC output voltage.

ers connections/operation:

CAUTION: Ensure you have read your inverter’s owner’s manual and are familar with the power

Info: If the inverter does not turn on, refer to the Troubleshooting section for your particular inverter

Info: If the inverter has a Search mode feature, the inverter’s AC full output voltage will not be to bring the inverter out of Search mode.

If using a Magnum inverter, use a light bulb that requires more than 5 watts (5 watts is the default setting) to bring the inverter out of Search mode; or, turn the Search mode off (inverter full output will always be on) with a remote control (i.e., ME-RC, ME-ARC, or ME-RTR).

-up test for y

present/on until Search is turned OFF, or a large enough light bulb is connected

our particualr in

verter and remote control.

CAUTION: To prevent damage to valuable equipment, DO NOT connect anything to the

put of the MP but a light bulb until all wiring and voltages are conﬁ rmed to be correct.

out

c. Turn ON the AC OUT1 breaker in the MP enclosure and conﬁ rm that the inverter AC output

voltage is passing thru the AC OUT breaker by verifying that the inverter AC output voltage is present on the AC Output Terminals.

d. Turn ON the INV BYP1 breaker in the MP enclosure (BYPASS Operation) and verify that

the inverter AC output voltage is no longer present on the AC Output Terminals (all voltage

readings should be 0 volts AC). e. Turn the inverter OFF. f. Apply power from an external AC source (utility grid or AC generator) to the AC Input

Terminals and verify the correct AC voltage from the external AC source. Refer to Figure 3-36,

3-37, or 3-38 (depending on your MP model) to determine the correct AC input voltage. g. Connect the voltmeter to the AC Output Terminals and check that the external AC source

voltage is passing thru the INV BYP breaker by verifying the AC source voltage is now present

on the AC Output Terminals. h. Turn ON the AC OUT1 and INV IN breakers in the MP enclosure (NORMAL Operation) and

wait for the inverter to connect to the external AC source (approximately 30 seconds). Verify

that the external AC source is present on the AC Output Terminals.

Info: Even though the inverter is turned off, with the external AC source connected and the INV IN — after a brief period of time (normally within 30 seconds) — and pass-thru the AC OUT breaker to the AC Output Terminals.

This concludes the MP functional test. If all steps pass, the MP enclosure is ready for use. Disconnect all power to the MP enclosure and proceed to Section 3.14 to install the front cover.

If any of the steps fail, recheck your wiring connections within the Installation section and/or refer to the Troubleshooting section for your inverter.

Note 1 - The INV BYP and AC OUT breakers are interlocked together. Physically turning ON one will turn

OFF the other, and vice versa.

breaker turned ON, the external AC source will connect to the inverter

Page 62

3.0 Installation

Inverter (AC)

Output

Terminals

240V

AC Input

Terminals

Breakers

AC Output

Terminals

120V

.0V

120V

240V

120V

.0V

120V

120V 240V.0V

OFF

Operation

BYPASS (with AC in)

Operation

NORMAL

Operation

AC BREAKERS OPERATION

INV BYP

= OFF

AC OUT

= OFF

INV IN

= OFF

INV BYP

= ON

AC OUT

= OFF

INV IN

= ON

INV BYP

= OFF

AC OUT

= ON

INV IN

= ON

INV

OUT

INV

BYP

Figure 3-36, AC Voltage Checks - MPSL-30D and MPSH-30D Models

Inverter (AC)

Output

Terminals

240V*

AC Input

Terminals

Breakers

AC Output

Terminals

120V

120V*

.0V

120V

.0V

120V

120V* 240V*.0V

120V*

240V*

INV

BYP

OUT

*LEG 2 / HOT 2 voltages will

not

be available unless a

second MS4024 inverter is

connected in series.

OFF

Operation

BYPASS (with AC in)

Operation

NORMAL

Operation

AC BREAKERS OPERATION

INV BYP

= ON

AC OUT

= OFF

INV BYP

= OFF

AC OUT

= ON

INV BYP

= OFF

AC OUT

= OFF

INV IN = OFF

INV IN =

INV

IN =

3.0 Installation

Figure 3-37, AC Voltage Checks - MPSL-60S Models

Page 64

3.0 Installation

Inverter (AC)

Output

Terminals

AC Input

Terminals

Breakers

AC Output

Terminals

OFF Operation

BYPASS (with AC in) Operation

NORMAL Operation

REAKERS OPERATION

INV BYP

= OFF

AC OUT

= OFF

INV IN = OFF

240V

.0V

120V

240V

120V

.0V

240V

120V

.0V

120V

INV BYP

= OFF

AC OUT

= ON

INV IN

= ON

INV IN

= ON

INV BYP

= ON

AC OUT

= OFF

INV IN

= ON

INV IN

= ON

INV

OUT

INV

BYP

INV

Figure 3-38, AC Voltage Checks - MPDH-30D (AC Side) Models

3.0 Installation

3.14

Use the screws and washers that were removed in Step 3.3.1 to attach the front cover to the MP enclosure. See Figure 3-39 for MPSL and MPSH models, or Figure 3-40 for MPDH models.

Attaching Front Covers

Info: The MP enclosure uses #10-32 x 3/8” Pan head, T25 Torx drive screws, and

#10-32 and MPSH models) use a total of 8 of these screws/washers, the dual enclosure (MPDH model) uses a total of 16 of these screws/washers.

lock

ashers to hold each front cover in place. The single enclosures (MPSL

Figure 3-39, Attaching Front

Cover - MPSL/MPSH Models

er the front cover’s are attached, open and close all circuit breakers, checking for correct

Aft alignment and free operation with the cover now in-place.

The hardware installation procedures for the MP enclosure are complete, if multiple inverters are installed, ensure the inverters are labeled to identify their relationship to one another (see Section

3.15). Otherwise, proceed to Section 5.0 to familiarize yourself with the operation of the MP/inverter system. Also, refer to the Appendix section to learn about the different options available for use with your MP/inverter system.

Figure 3-40, Attaching Front

Covers - MPDH Models

Page 66

3.0 Installation

Master/Slave

Identification

Label Set

DC BREAKERS

ADDED LABELS

AC BREAKERS

MASTER

INVERTER

SLAVE 1

INVERTER

MASTER

INVERTER

MASTER

INVERTER

SLAVE 1

INVERTER

SLAVE 1

INVERTER

SLAVE 1

INVERTER

SLAVE 1

INVERTER

SLAVE 1

INVERTER

SLAVE 1

INVERTER

MASTER

INVERTER

MASTER

INVERTER

MASTER

INVERTER

MASTER

INVERTER

SLAVE 3

INVERTER

SLAVE 3

INVERTER

SLAVE 3

INVERTER

SLAVE 3

INVERTER

SLAVE 2

INVERTER

SLAVE 2

INVERTER

SLAVE 2

INVERTER

SLAVE 2

INVERTER

3.15 Master/Slave Identiﬁ cation Label Set

o h

elp reduce operator and maintenance errors resulting from incorrect identiﬁ cation of the inverters

T and circuit breakers, a Master/Slave Identiﬁ cation Label Set is provided. After the MP enclosure/ Inverter system is wired and tested for proper operation, refer to Figure 3-41 to apply the labels to the front cover of each inverter and to each circuit breaker in the MP enclosure. These labels allow the operator to clearly identify the AC and DC breakers wired to each inverter; and to know the relationship of each inverter to one another when connected in a parallel-stacked conﬁ guration.

Figure 3-41, Applying Master/Slave Identiﬁ cation Labels

4.0 Wiring Diagrams

4.0

Diagrams of the AC, DC, and communications wiring for the different MP Series enclosures are provided in this section to assist the system installer. Use Table 4-1 to quickly ﬁ nd the wiring diagram for your MP model.

Wiring Diagrams

Info: Due to the variety of applications and differences in local and national electrical

codes, intended to override or restrict any national or local electrical codes; and, these diagrams should not be the determining factor as to whether the installation is compliant, that is the responsibility of the electrician and the onsite inspector.

these

wiring

diagrams should be used as a general guideline only. They are not

Table 4-1, MP Wiring Diagrams

MP Enclosure Models

Wiring Diagrams

Inverter AC Input/Output

Wiring

Inverter AC Wiring Figure 4-3a Figure 4-4a Figure 4-5a Figure 4-6a

External AC Wiring Figure 4-3b Figure 4-4b Figure 4-5b Figure 4-6b

MPSL-30D MPSL-60S MPSH-30D

Figure 4-2

(MS-PAE

Series)

Figure 4-1

(MS4024)

Figure 4-2

(MS-PAE

Series)

MPDH-30D

Figure 4-2

(MS-PAE

Series)

DC Wiring

(Inverter and External)

Communications Wiring Figure 4-3d Figure 4-4d Figure 4-5d Figure 4-6e

Full System Wiring Figure 4-3e Figure 4-4e Figure 4-5e Figure 4-6f

Figure 4-3c Figure 4-4c Figure 4-5c

Figure 4-6c

and

Figure 4-6d

Description of Wiring Diagrams:

• Inverter AC Input/Output Wiring - These diagr

AC input and output wires, separating them into two bundles (AC Input and AC Output), and routing each bundle thru different strain-reliefs on the inverter.

• Inverter AC Wiring - These diagrams show the AC wiring inside the MP enclosure from the inverter’s AC input and output wires.

• External AC Wiring - These diagrams show the AC wiring inside the MP enclosure to the external AC source (i.e., generator or grid) and the external AC loads (main panel or sub-panel).

• DC Wiring (Inverter and External) - These diagrams show the DC wiring inside the MP enclosure to the inverter’s DC terminals and the DC wiring to the external DC source (i.e., battery bank).

• Communications Wiring - These diagrams show the communications cables wired inside the MP enclosure. These communications cables are for connecting the BTS and remote control into and out of the MP enclosure.

• Full System Wiring - These diagrams show all the wiring (inverter AC/DC, external AC/ DC, and communications) as a fully complete system with the maximum amount of inverters allowed for each speciﬁ c model.

ams show how to connect the inverter’s

Page 68

4.0 Wiring Diagrams

MS4024 Series Inverter –

showing AC wires from the

internal AC wiring terminal

Left side view of

inverter mounted

on MP Enclosure

Inverter AC

Input Wires

(Leg 1 Only)

Inverter AC

Output Wires

(Leg 1 Only)

GROUND

AC HOT 2 OUT

AC NEUT IN

AC NEUT OUT

AC HOT 1 OUT

AC HOT 1 IN

AC HOT 2 IN

.BLACK

.WHITE

.BLACK w/STRIPE

.WHITE w/STRIPE

.GREEN

See Note

Below

Figure 4-1, Inverter AC Input and Output Wiring Diagram - MS4024

Info: When wiring the MS4024 (or any other MS Series inverter), both the inverter input and output enclosure. This is because — depending on the inverter’s operating mode — the inverter’s input and output neutral terminals may not be connected together (i.e., inverter’s neutrals are not connected when “inverting”, and are combined when “charging”).

Note: Because a neutral to ground connection is also made in the MP enclosure, the neutral to ground connection inside the MS4024 must be disconnected. Refer to the MS4024 owner’s manual for information on how this is done.

neutral wires must be connected to a AC NEUTRAL busbar inside the MP

4.0 Wiring Diagrams

MS-PAE Series Inverter –

showing AC wires from the

internal AC wiring terminal

3030

Left side view of

inverter mounted

on MP Enclosure

.BLACK

.RED

.WHITE

.BLACK w/STRIPE

.RED w/STRIPE

.GREEN

Inverter AC Input Wires

(Leg 1 and 2)

Inverter AC

Output Wires

(Leg 1 and 2)

GROUND

AC HOT 2 OUT

AC NEUTRAL

AC HOT 1 OUT

AC HOT 1 IN

AC HOT 2 IN

Figure 4-2, Inverter AC Input and Output Wiring Diagram - MS-PAE Series

Info: When wiring the MS-PAE Series inverter, only a single neutral wire (either an inverter busbar inside the MP enclosure. This is because the input and output neutral terminals are connected together inside the MS-PAE Series inverter.

Info: The busbars labeled AC NEUTRAL in the MP enclosure ARE connected together, so all neutr

input or output neutral wire) is required to be connected to a AC NEUTRAL

al connections are in common with each other

Page 70

4.0 Wiring Diagrams

MS-PAE

Series

inverter

MPSL-30D

Enclosure

Red

Black

Red

Green

Black

OUTPUT

INPUT

Red w/stripe

White

Black w/stripe

Figure 4-3a, MPSL-30D Inverter AC Wiring

MPSL-30D

Enclosure

OFF

LEG

OUT

GND

NEU

OUT

LEG

OUT

AC Main Panel

(AC Source)

OFF

120V 240V

120V

AC Sub-Panel

(Inverter Loads)

LEG

GND

NEU

.Black

.Red

.Green

.White

.Red

.Black

.Red

.Black

Note: The

NEUTRAL-GROUND

CONNECTION wire

must be remov

ed if a

neutral to ground

connection is made in

the AC Main panel

(see section 3.9)

4.0 Wiring Diagrams

Figure 4-3b, MPSL-30D External AC Wiring

Page 72

4.0 Wiring Diagrams

MS-PAE

Series

Inverter

MPSL-30D

Enclosure

Red cable

to positive

DC terminal

Black cable

to negative

DC terminal

DC Equipment

Ground Terminal

Red

Black

Connected to inverter’s DC

Equipment

Ground Terminal

.Red

.Black

Connected to

DC System

Ground

Positive, negative

and ground

cables connected to

inverter battery bank

Figure 4-3c, MPSL-30D DC Wiring

4.0 Wiring Diagrams

Remote

to BTS

MPSL-30D

Enclosure

MS-PAE

Series

inverter

Remote

able

(

300V)

Remote

Extension

Cable (300V)

to BTS

Battery

Temperature

Sensor

Figure 4-3d, MPSL-30D Communications Wiring

Page 74

4.0 Wiring Diagrams

MS-PAE SERIES

INVERTER/CHARGER

(ADDED)

SLAVE 1

COM

PORTS

AC LEG 1 OUT

AC WIRING

< 1/0

AWG

ME-RTR

GROUND

.INVERTER DC DISCON

NECT (ADDED)

INVERTER DC DISCONNECT

Remove this

NEUTRAL TO

GROUND

CONNECTION

if a Neutral

to Ground

onnection

is made

elsewhere

in the AC

system.

BATTERY BANK

(DC SOURCE)

DC WIRING

SYSTEM

GROUND

AC MAIN PANEL

(AC SOURCE)

OFF

GND

LEG

OUT

NEU OUT

LEG

OUT

AC SUB-PANEL

(INVERTER LOADS)

OFF

120V

240V

120V

LEG

NEU

LEG

GND

.INVERTER BYPASS

OUTPUT BREAKERS

(D60A)

GROUND

= 1/0 AWG

BTS

BATTERY

TEMP

ENSOR

MPSL-30D SYSTEM WIRING

AC LEG 2 IN

AC LEG 2 OUT

TO DC

EGATIVE

BUSBAR

TO DC

OSITIVE

BUSBAR

INVERTER INPUT (D30A)

(ADDED)

INVERTER INPUT (D30A)

MS-PAE SERIES

INVERTER/CHARGER

MASTER

COM

PORTS

.H2O.H1O.N

.H1I.H2

.H2O.H1O.N

.H1

.H2

.DC SHUNT

(500A/50MV)

INV HOT 1 OUT

INV HOT 2 OUT

NEUTRAL

AC LEG 1 OUT

AC LEG 1 IN

NEUTRAL

Remove this

NEGATIVE TO

GROUND BUSBAR if a

Negative to Ground

connection is

made elsewhere

in the DC system

(i.e., PV-GFP).

GROUND

AC AC AC DC

Figure 4-3e, MPSL-30D Full System Wiring Diagram

4.0 Wiring Diagrams

Magnum

inverter

MPSL-60S

Enclosure

Green

Black

White

INPUT

OUTPUT

White w/Stripe

Black

w/stripe

Note: This ﬁ gure shows

wiring inside the MPSL

for one MS4024 - as LEG 1

(120V AC only).

A second MS4024 can be

connected in a Series-

stacked conﬁ guration - as

LEG 2 (120/240V AC).

Refer to information on the

MPX Extension models for

stacking a second MS4024

in series.

-60S.

Figure 4-4a, MPSL-60S Inverter AC Wiring

Page 76

4.0 Wiring Diagrams

MPSL-60S

Enclosure

.Black

.Green

.White

OFF

120VAC

Loads

AC Sub-Panel

(Inverter Loads)

LEG

GND

NEU

OFF

NEU OUT

LEG

OUT

GND

AC Main Panel

(120VAC Source)

Note: The NEUTRAL CONNECTION wire

must be remo

-GROUND

if a neutral to

ground

connection is

made in the AC

Main panel

(see section 3.9)

Figure 4-4b, MPSL-60S External AC Wiring

Red

Black

.Black

Black cable

to negative

DC terminal

Red cable

to positive

DC terminal

Magnum Inverter

MPSL-60S

Enclosure

DC Equipment

Ground Terminal

Connected to inverter’s DC

Equipment

Ground Terminal

.Red

Connected to

DC System

Ground

Positive, negative

and ground

cables connected to

inverter battery bank

4.0 Wiring Diagrams

Figure 4-4c, MPSL-60S DC Wiring

Page 78

4.0 Wiring Diagrams

Remote

Cable

(300V)

Magnum Inverter

MPSL-60S

Enclosure

Remote

to BTS

Extension

Cable (300V)

to BTS

Battery

Temperature

Sensor

Figure 4-4d, MPSL-60S Communications Wiring

MS4024

INVERTER/CHARGER

INVERTER 2

COM

PORTS

AC LEG 1 OUT

AC WIRING

< 1/0

AWG

GROUND

.INVERTER DC DISC

ONNECT (ADDED)

INVERTER DC DISCONNECT

Remove this

NEUTRAL TO

GROUND

ONNECTION

if a Neutral

to Ground

onnection

is made

elsewhere

in the AC

system.

BATTERY BANK

(24VDC SOURCE)

DC WIRING

SYSTEM

GROUND

AC MAIN PANEL

(120/240VAC SOURCE)

OFF

GND

LEG

OUT

NEU OUT

LEG

OUT

AC SUB-PANEL

(INVERTER LOADS)

OFF

120V

240V

120V

LEG

NEU

LEG

GND

.INVERTER BYPASS &

UTPUT BREAKERS

(D60A)

GROUND

= 1/0

AWG

BTS

BATTERY

EMP

SENSORS

MPSL-60S SYSTEM WIRING

AC LEG 2 OUT

TO DC

NEGATIVE

BUSBAR

TO DC

OSITIVE

BUSBAR

S60A INVERT

ER INPUT (ADDED)

MS4024

INVERTER/CHARGER

INVERTER 1

COM

PORTS

.DC SHUNT

(500A/50MV)

INV HOT 1 OUT

INV HOT 2 OUT

AC LEG 1 OUT

NEUTRAL

Remove this

NEGATIVE TO

GROUND BUSBAR

if a Negative to

Ground connection is

made elsewhere in

the DC system (i.e., PV-GFP).

ME-ARC

AC LEG 2 IN

AC LEG 1 IN

NEUTRAL

ME-SSI

CABLE

GROUND

Note 1: The ME-RTR (Router)

may be used instead of two

ME-ARCs if the inverter and

charger settings will be the

same on both MS4024s.

Note 2: The ME-SSI cable

must be used to series-stack

two MS4024 units for 120/

240VAC output. It is included

in the MPXS-60S Extention Kit.

.H2O.H1O.N

.H1I.H2

.H2O.H1O.N

.H1

.H2

S60A INVERTER INP

DCDC

ACAC

4.0 Wiring Diagrams

Figure 4-4e, MPSL-60S Full System Wiring Diagram

Page 80

4.0 Wiring Diagrams

MPSH-30D

Enclosure

MS-PAE

Series

Inverter

Red

Green

Black

INPUT

OUTPUT

White

Black w/

stripe

Red w/stripe

.Red

.Black

Figure 4-5a, MPSH-30D Inverter AC Wiring

MPSH-30D

Enclosure

.Black

.Red

.Green

.White

.Green

.White

.Red

.Black

.Red

.Black

OFF

120V 240V

120V

AC Sub-Panel

(Inverter Loads)

LEG

1 IN

GND

NEU

OFF

LEG

OUT

NEU OUT

AC Main Panel

(AC Source)

LEG

OUT

GND

Note: The

NEUTRAL

-GROUND

CONNECTION wire

must be remo

if a neutral to

ground

connection is

made in the AC

Main panel

(see section 3.9)

4.0 Wiring Diagrams

Figure 4-5b, MPSH-30D External AC Wiring

Page 82

4.0 Wiring Diagrams

MS-PAE

Series

Inverter

Black cable to negative

DC terminal

Red cable

to positive

DC terminal

DC Equipment

Ground Terminal

Red

Black

Connected to

inverter’s DC

Equipment

Ground Terminal

Connected to

DC System

Ground

Positive, negative

and ground

cables connected to

inverter battery bank

Black

Red

MPSH-30D

Enclosure

Figure 4-5c, MPSH-30D DC Wiring

4.0 Wiring Diagrams

Remote

MPSH-30D

Enclosure

MS-PAE

Series

inverter

Remote

Cable

(

300V)

To BTS

Remote

Extension

Cable

(300V) to

BTS

Battery

Temperature

Sensor

Figure 4-5d, MPSH-30D Communications Wiring

Page 84

4.0 Wiring Diagrams

MS-PAE SERIES

INVERTER/CHARGER

SLAVE 2

COM

PORTS

MS-PAE SERIES

INVERTER/CHARGER

SLAVE 1

COM

PORTS

AC LEG 1 OUT

AC WIRING

< 1/0

AWG

INVERTER INPUT (D30A)

(ADDED)

INVERTER INPUT (D30A)

(ADDED)

ME-RTR

GROUND

.INVERTER DC DISCONNECT (ADDED)

INVERTER DC DISCONNECT (ADDED)

Remove this

NEUTRAL TO

ROUND

CONNECTION

if a Neutral

to Ground

onnection

is made

elsewhere

in the AC

system.

BATTERY BANK

(DC SOURCE)

DC WIRING

SYSTEM

GROUND

DC SHUNT

(1000A/100MV)

AC MAIN PANEL

(AC SOURCE)

OFF

GND

LEG

OUT

NEU OUT

LEG

OUT

AC SUB-PANEL

(INVERTER LOADS)

OFF

120V

240V

120V

LEG

NEU

LEG

GND

.INVERTER BYPASS &

UTPUT BREAKERS

(D125A)

Remove this NEGATIVE TO

GROUND BUSBAR

connection if it

is made elsewhere

in the DC system

(i.e., PV-GFP).

GROUND

MS-

PAE SERIES

INVERTER/CHARGER

MASTER

COM

PORTS

.H2O.H1O.N

.H1I.H2

.H2O.H1O.N

.H1I.H2

= 1/0

AWG

BTS

BATTERY

TEMP

SENSOR

NEUTRAL

MPSH-30D SYSTEM WIRING

INV HOT 1 OUT

AC LEG 1 IN

INV HOT 2 OUT

NEUTRAL

.H2O.H1O.N

.H1I.H2

AC LEG 1 OUT

AC LEG 2 OUT

TO DC

NEGATIVE

USBAR

AC LEG 2 IN

INVERTER DC D

ISCONNECT

ACACAC

TO DC

OSITIVE

BUSBAR

Figure 4-5e, MPSH-30D Full System Wiring Diagram

MPDH-30D

(AC Side)

AC OUTPUT

(fro

m Master)

AC INPUT

(to Master)

AC OUTPUT (from Slave)

AC INPUT

(to Slave)

.Black

.Red

Red w/ Stripe

Black w/ Stripe

White

Red

Green

Black

Master

(MAS)

Red

Green

Black

Red w/ Stripe

Black w/ Stripe

White

Slave 1

(SL1)

MS-PAE

Series

inverters

MPDH-30D

(DC Side)

.Red

.Black

(SL1).(MAS)

4.0 Wiring Diagrams

Figure 4-6a, MPDH-30D Inverter AC Wiring

Page 86

4.0 Wiring Diagrams

.(SL1)

.Black

.Red

.Black

MPDH-30D

(AC Side)

.Black

.Red

.White

.Green

OFF

120V 240V

120V

AC Sub-Panel

(Inverter Loads)

LEG

GND

NEU

OFF

LEG

OUT

AC Main Panel

(AC Source)

LEG

OUT

GND

NEU OUT

.Black

.Red

.White

.Green

.(MAS)

Note: The NEUTRAL

CONNECTION wire must be remo

-GROUND v

if a neutral to ground connection is

made in the AC Main panel

(see section 3.9)

Figure 4-6b, MPDH-30D External AC Wiring

4.0 Wiring Diagrams

MPDH-30D

Enclosure

(DC side)

MPDH-30D

Enclosure

(AC side)

.Black

.Red

Red cable

to positive

DC terminal

DC Equipment

Ground Terminal

MS-PAE

Series

Inverters

Attached to Master

inverter’s DC Ground

Terminal

Slave

(SL1)

Master

(MA)

Black cable

to negative

DC terminal

Black cable

to negative

DC terminal

Red cable

to positive

DC terminal

Figure 4-6c, MPDH-30D Inverter DC Wiring

Page 88

4.0 Wiring Diagrams

Connected to each inverter’s DC

Equipment Ground Terminal

.Black

Positive, negative, and

ground cables

connected to inverter

battery bank

Connected to

DC System

Ground

MPDH-30D

Enclosure

(DC side)

Figure 4-6d, MPDH-30D External DC Wiring

MS-PAE Series

Inverters

Slave 1

(SL1)

Master

(MA)

To BTS

Stack (MA)

Remote (P

Remo

te (P2)

Stac

k (SL1)

MPDH-30D

Enclosure

(DC Side)

MPDH-30D

Enclosure

(AC Side)

Remote

SL 1

Stacking

Ports

Comm

Ports

Remote Cables

Stacking Cables

P1 P2

Extension Cable

(30

0V) to BTS

Remote

Cables

(300V)

Stacking

Cables

(300V)

Battery

Temperature

Sensor

4.0 Wiring Diagrams

Figure 4-6e, MPDH-30D Communications Wiring

Page 90

4.0 Wiring Diagrams

MS-PAE SERIES

INVERTER/CHARGER

MS-PAE SERIES

INVERTER/CHARGER

MASTER SLAVE 1

AC WIRING

INVERTER BYPASS &

OUTPUT BREAKERS

(125A)

ME-RTR

COM

PORTS

.INVERTER INPUT

(ADDED)

.INVERTER INPUT

INVERTER INPUT

.INVERTER IN

PUT

(ADDED)

.6 .7 .8 .9

13 14 15 16 17

COM

PORTS

GROUND

Remove this NEUTRAL TO

GROUND CONNECTION

if a Neutral to Ground

connection i

s made

elsewhere in the

AC system.

AC MAIN PANEL

(AC SOURCE)

OFF

GND

LEG

OUT

NEU OUT

LEG

OUT

NEUTRAL

.H2O.H1O.N

.H1

.H2

.H2O.H1O.N

.H1

.H2

AC SUB-PANEL

(INVERTER LOADS)

LEG

NEU

LEG

GND

OFF

120V

240V

120V

MPDH-30D (AC SIDE) SYSTEM WIRING

AC LEG 2 OUT

AC LEG 1 IN

AC LEG 2 IN

AC LEG 1 OUT

INV HOT 1 OUT

INV HOT 2 OUT

NEUTRAL

GROUND

.B.B

Figure 4-6f.1, MPDH-30D Full System Wiring Diagram (AC Side)

< 1/0

AWG

GROUND

BATTERY

BANK

(DC SOURCE)

DC WIRING

MS-PAE SERIES

INVERTER/CHARGER

(ADDED)

11 12 13 14 15 16 17

DC SHU

(1000A/100

MV)

BTS

BATTERY

TEMP

ENSOR

SLAVE 2

COM

PORTS

.8 .9

INVERTER DC DISCONNECT

INVERTER DC DISCONNECT (ADDED)

INVERTER DC DISCONNECT

VERTER DC DISCONNECT (ADDED)

.H2O.H1O.N

.H1

.H2

.H2O.H1O.N

.H1

.H2

Remove this

NEGATIVE TO GROUND

USBAR if a Negative

to Ground connection

is made elsewhere

in the DC system

(i.e., PV-GFP).

GROUND

= 1/0 AWG

MS-PAE SERIES

INVERTER/CHARGER

(ADDED)

SLAVE 3

COM

PORTS

MPDH-30D (DC SIDE) SYSTEM WIRING

GROUND

TO DC

EGATIVE

BUSBAR

TO DC

POSITIVE

BUSBAR

.B.B

ACAC

4.0 Wiring Diagrams

Figure 4-6f.2, MPDH-30D Full System Wiring Diagram (DC Side)

Page 92

5.0 Operation

AC Input BusbarsAC IN AC OUT

OUTPUT

AC INPUT

INVERTER

(AC side)

AC Output BusbarsINV IN INV OUT

AC INPUT

Breakers

DC Side

AC Side

MP Enclosure

SOURCE

FROM MAIN

PANEL

(Customer

Connection

)

INPUT

INVERTER

(DC side)

DC Shunt

DC NEG Busbar

DC POS Busbar

INV DC Breaker

BATTERY

BANK

(Customer

Connection)

NEG (-)

POS (+)

AC BYPASS AC OUTPUT

OFF

LOADS

(Customer

Connection)

Breakers

(optional)

LOADS

IN SUB-

PANEL

(Customer

Connection)

5.0 Operation

The MP enclosure your inverter/battery system. These breakers are used as the main power disconnecting means

and/or overcurrent

operation of the breakers within the MP enclosure.

Info: refer to the relev

Info: F

short-circuit condition occurs, or if a load is placed on the circuit breaker that is more than its

a rated capacity, the breaker will trip OFF (down). On the AC breakers, a red indicator will display through the clear window on the circuit breaker to show a tripped condition. On the other circuit breakers, the handle will trip all the way to the OFF position.

Before resetting the breaker, ﬁ rst determine the cause of the overcurrent fault. Then, reset the circuit breaker by turning it all the way OFF, and then all the way back ON. For proper maintenance and longer life, the circuit breakers should be turned off and on several times at least once a year. This will help to prevent the contacts inside from sticking together.

To shut the MP/inverter system OFF completely, all of the circuit breakers in the MP enclosure must be switched to the OFF position.

provides you with circuit breakers/disconnects to easily operate and maintain

protection. Refer to Figure 5-1 to view a simple diagram of the functional

Figure 5-1 is for descriptive purposes only, for speciﬁ c wiring directions please

ant wiring diagr

or information on operating the inverter, refer to its owner’s manual.

am in the Installation section of this manual.

Figure 5-1, MP Functional Diagram

Magnum Energy MPSL-30D, MPSL-60S, MPSH-30D, MPDH-30D User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual