Emerson Liebert NXL Installation Manual

AC Power
For Business-Critical Continuity™

Liebert® NXL

™

Installation Manual – 500-750, 60Hz, Three-Phase, Single-Module & Multi-Module

CONTACTING LIEBERT FOR SUPPORT

To contact Liebert Services for information or repair service in the United States, call
1-800-LIEBERT (1-800-543-2378). Liebert Services offers a complete range of start-up services, repair
services, preventive maintenance plans and service contracts.

For repair or maintenance service outside the 48 contiguous United States, contact Liebert Services,
if available in your area. For areas not covered by Emerson Network Power Liebert Services, the
authorized distributor is responsible for providing qualified, factory-authorized service.

For Liebert Services to assist you promptly, please have the following information available:

Part numbers: _________________________________________________________________

Serial numbers:________________________________________________________________

Rating: _______________________________________________________________________

Date purchased: _______________________________________________________________

Date installed:_________________________________________________________________

Location: ______________________________________________________________________

Input voltage/frequency:________________________________________________________

Output voltage/frequency: ______________________________________________________

Battery reserve time:___________________________________________________________

Product Warranty Registration

To register for warranty protection, visit the Service and Support section of our Web site at:

www.liebert.com

Click on Product Registration and fill out the form.

TABLE OF CONTENTS

IMPORTANT SAFETY INSTRUCTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

1.0 MECHANICAL INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3

1.1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

1.2 Preliminary Checks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

1.3 Environmental Considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

1.3.1 UPS Room . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

1.3.2 Storage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

1.4 Positioning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

1.4.1 Moving the Cabinets. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

1.4.2 Clearances. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

1.4.3 Floor Installation/Anchoring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

1.5 System Composition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

1.6 Cable Entry. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

2.0 UPS ELECTRICAL INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6

2.1 External Protective Devices. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

2.2 Power Cables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

2.2.1 Power Cable Connection Procedure. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

2.3 Control Cable and Communication . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

2.3.1 Dry Contacts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

2.3.2 Analog Load Bus Synch Connection to Non-Liebert NXL Equipment . . . . . . . . . . . . . . . . . . 11

2.3.3 Multi-Module Communication. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

2.3.4 Remote Input Breaker (RIB) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

2.3.5 Inverter Output Breaker (IOB) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

2.4 Digital LBS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

2.5 Configuring Neutral and Ground Connections. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

2.5.1 Four-Wire Input connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

2.5.2 Three-Wire Input connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

2.5.3 Preferred Grounding Configuration, Battery Systems. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

2.5.4 Multi-Module Systems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

3.0 OPTIONAL EQUIPMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20

3.1 Single-Module System Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

3.1.1 Matching Maintenance Bypass Cabinet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

3.1.2 Battery Temperature Sensor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

3.1.3 Matching Liebert NXL Battery Cabinet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

3.1.4 Matching Module Battery Disconnect—MBD. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

3.1.5 Load Bus Synch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

3.1.6 Remote Alarm Panel. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

3.2 Communication and Monitoring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

3.2.1 Alber Monitoring System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

4.0 INSTALLATION DRAWINGS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

5.0 SPECIFICATIONS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .42

i

FIGURES

Figure 1 Cabinet arrangement—Liebert NXL, battery cabinets, maintenance bypass cabinet . . . . . . . . . . 5

Figure 2 Cabinet grounding plates . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Figure 3 Kick plate and filter locations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Figure 4 Low-voltage cable installation—top entry . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Figure 5 External Interface Board connections layout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Figure 6 Inter-Module Communication Board wiring diagram—Multi-modules . . . . . . . . . . . . . . . . . . . . 14

Figure 7 Remote Input Breaker diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

Figure 8 Remote Output Breaker diagram. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

Figure 9 Inter-Module Communication Board wiring diagram—Digital LBS . . . . . . . . . . . . . . . . . . . . . . . 18

Figure 10 Main components, 500kVA Liebert NXL 1+N multi-module or SMS with static bypass. . . . . . . 21

Figure 11 Outline drawing, Liebert NXL 500kVA UPS 1+N multi-module or SMS with static bypass . . . 22
Figure 12 Output terminal details, Pg. 1, Liebert NXL 500kVA UPS 1+N multi-module or SMS with

static bypass . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

Figure 13 Output terminal details, Pg. 2, Liebert NXL 500kVA UPS 1+N multi-module or SMS with

static bypass . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

Figure 14 Base drawing, Liebert NXL 500kVA UPS 1+N multi-module or SMS with static bypass . . . . . . 25

Figure 15 Main components, 750kVA Liebert NXL UPS without static bypass . . . . . . . . . . . . . . . . . . . . . . 26

Figure 16 Main components, 750kVA Liebert NXL UPS with static bypass (SMS OR 1+N) . . . . . . . . . . . . 27

Figure 17 Outline drawing, 750kVA Liebert NXL without static bypass . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

Figure 18 Outline Drawing, 750kVA Liebert NXL 1+N multi-module or SMS with static bypass . . . . . . . 29

Figure 19 Base detail drawing, 750kVA Liebert NXL, N+1 multi-module without static bypass . . . . . . . . 30

Figure 20 Base Drawing, 750kVA Liebert NXL 1+N multi-module or SMS with static bypass. . . . . . . . . . 31

Figure 21 Input/output terminal detail, 750kVA Liebert NXL without static bypass. . . . . . . . . . . . . . . . . . 32

Figure 22 Detail 750kVA Liebert NXL with static bypass (SMS/1+N). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

Figure 23 Input/output terminal detail, 750kVA Liebert NXL without static bypass (continued) . . . . . . . . 34

Figure 24 Input/output terminal detail, 750kVA Liebert NXL with static bypass (SMS or

1+N) continued . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

Figure 25 Shipping split 750kVA Liebert NXL without static bypass . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36

Figure 26 Shipping Split, 750kVA Liebert NXL with static bypass (SMS/1+N) . . . . . . . . . . . . . . . . . . . . . . 37

Figure 27 Shipping Split, 750kVA Liebert NXL with static bypass (SMS/1+N) continued. . . . . . . . . . . . . . 38

Figure 28 Single-input wire cabinet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39

Figure 29 Control cable layout, UPS active analog load bus sync, 250-750kVA units . . . . . . . . . . . . . . . . . 40

Figure 30 Control cable layout, UPS passive analog load bus sync, 250-750kVA units . . . . . . . . . . . . . . . . 40

Figure 31 Control cable layout, UPS analog load bus sync, ELBS, 250-750kVA units . . . . . . . . . . . . . . . . . 41

ii

TABLES

Table 1 UPS input dry contacts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

Table 2 UPS control contacts with battery cabinet or module battery disconnect. . . . . . . . . . . . . . . . . . . 10

Table 3 UPS control contacts with maintenance bypass . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

Table 4 UPS control contacts to remote status panel. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

Table 5 UPS control contacts with analog LBS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

Table 6 Parallel from UPS module Inter-Module Communication Board to other Inter-Module

Communication Board in system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

Table 7 RIB UV coil, aux. contacts from UPS RIB CB interface board to remote CB1 . . . . . . . . . . . . . . . 15

Table 8 Remote IOB contacts from remote breaker to UPS IOB CB interface board . . . . . . . . . . . . . . . . 17

Table 9 Wire size, length for digital LBS connection of UPS Inter-Module Communication

Boards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

Table 10 Liebert NXL UPS specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42

Table 11 Current ratings—rectifier input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44

Table 12 Current ratings—bypass input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44

Table 13 Current ratings—output. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44

Table 14 Current ratings—battery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44

Table 15 Recommended conduit and cable sizes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45

Table 16 Recommended lug sizes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46

Table 17 Recommended torque values . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46

iii

iv

IMPORTANT SAFETY INSTRUCTIONS

!

!

!

SAVE THESE INSTRUCTIONS

This manual contains important instructions that should be followed during installation of your
Liebert NXL
to your installation, before working with the UPS. Retain this manual for use by installing per-

sonnel.

™

UPS. Read this manual thoroughly, paying special attention to the sections that apply

WARNING

Risk of electrical shock. Can cause personal injury or death.
This UPS has several circuits that are energized with high DC as well as AC voltages. Check

for voltage with both AC and DC voltmeters before working within the UPS. Check for voltage
with both AC and DC voltmeters before making contact.

Only properly trained and qualified personnel wearing appropriate safety headgear, gloves,
shoes and glasses should be involved in installing the UPS or preparing the UPS for
installation. When performing maintenance with any part of the equipment under power,
service personnel and test equipment should be standing on rubber mats.

In case of fire involving electrical equipment, use only carbon dioxide fire extinguishers or
those approved for use in fighting electrical fires.

Extreme caution is required when performing installation and maintenance.
Special safety precautions are required for procedures involving handling, installation and

maintenance of the UPS system. Observe all safety precautions in this manual before
handling or installing the UPS system. Observe all precautions in the Operation and
Maintenance Manual, SL-25425, before as well as during performance of all maintenance
procedures. Observe all DC safety precautions before working on or near the DC system.

WARNING

Risk of heavy unit falling over. Improper handling can cause equipment damage, injury or
death.

Exercise extreme care when handling UPS cabinets to avoid equipment damage or injury to
personnel. The UPS module weight is up to 13,200lb (5988kg).

Locate center of gravity symbols and determine unit weight before handling each
cabinet. Test lift and balance the cabinets before transporting. Maintain minimum tilt from
vertical at all times.

Slots at the base of the module cabinets are intended for forklift use. Base slots will support
the unit only if the forks are completely beneath the unit.

Read all of the following instructions before attempting to move, lift, or remove packaging
from unit, or prepare unit for installation.

WARNING

Risk of electrical shock and fire. Can cause equipment damage, personal injury or death.
Under typical operation and with all UPS doors closed, only normal safety precautions are

necessary. The area around the UPS system should be kept free of puddles of water, excess
moisture and debris.

Only test equipment designed for troubleshooting should be used. This is particularly true for
oscilloscopes. Always check with an AC and DC voltmeter to ensure safety before making
contact or using tools. Even when the power is turned Off, dangerously high potential electric
charges may exist at the capacitor banks and at the DC connections.

All wiring must be installed by a properly trained and qualified electrician. All power and
control wiring must comply with all applicable national, state and local codes.

One person should never work alone, even if all power is disconnected from the equipment. A
second person should be standing by to assist and to summon help in case of an accident.

1

NOTE

Materials sold hereunder cannot be used in the patient vicinity (e.g., use where UL, cUL or
IEC 60601-1 is required). Medical applications such as invasive procedures and electrical life
support equipment are subject to additional terms and conditions.

NOTICE

This unit complies with the limits for a Class A digital device, pursuant to Part 15 Subpart J
of the FCC rules. These limits provide reasonable protection against harmful interference in a
commercial environment. This unit generates, uses and radiates radio frequency energy and,
if not installed and used in accordance with this instruction manual, may cause harmful
interference to radio communications. Operation of this unit in a residential area may cause
harmful interference that the user must correct at his own expense.

2

1.0 MECHANICAL INSTALLATION

!

1.1 Introduction

This section describes the requirements that must be taken into account when planning the position­ing and cabling of the Liebert NXL uninterruptible power supply and related equipment.

This chapter is a guide to general procedures and practices that should be observed by the installing
personnel. The particular conditions of each site will determine the applicability of such procedures.

WARNING

Risk of electrical shock. Can cause injury or death.
Special care must be taken when working with the batteries associated with this equipment.

When they are connected together, the battery terminal voltage will exceed 400VDC and is
potentially lethal.

NOTE

All equipment not referred to in this manual is shipped with details of its own mechanical and
electrical installation.

NOTICE

Three-phase input supply required.
The standard Liebert NXL UPS is suitable for connection to three-phase, four-wire (+ Earth)

TN-C, TN-S, IT-G or IT-IG, or three-phase, three-wire plus ground IT-UG.
If the unit is used with an IT power system, a 4-pole disconnect device must be included as

part of building installation.

Mechanical Installation

NOTICE

Do not apply electrical power to the UPS equipment before the arrival of the commissioning
engineer.

1.2 Preliminary Checks

Before installing the UPS, please carry out the following preliminary checks:

• Visually examine the UPS equipment for transit damage, both internally and externally. Report
any damage to the shipper immediately.

• Verify that the correct equipment is being installed. The equipment supplied has an identification
tag on the interior doors reporting the type, size and main calibration parameters of the UPS.

• Verify that the UPS room satisfies the environmental conditions stipulated in the equipment
specification, paying particular attention to the ambient temperature and air exchange system.

1.3 Environmental Considerations

1.3.1 UPS Room

The UPS module is intended for indoor installation and should be located in a cool, dry, clean-air envi­ronment with adequate ventilation to keep the ambient temperature within the specified operating
range (see Environmental Parameters in Table 10).

The Liebert NXL UPS is cooled with the aid of internal fans. To permit air to enter and exit and pre­vent overheating or malfunctioning, do not cover the ventilation openings.

The Liebert NXL UPS is equipped with air filters located behind the front doors and kick plates. A
schedule for inspection of the air filters is required. The period between inspections will depend upon
environmental conditions.

When bottom entry is used, the conduit plate must be installed.

NOTE

The UPS is suitable for mounting on concrete or other non-combustible surface only.

3

1.3.2 Storage

!

Should the equipment not be installed immediately, it must be stored in a room for protection against
excessive humidity and/or heat sources (see Environmental Parameters in Table 10).

1.4 Positioning

The cabinet is structurally designed to handle lifting from the base.

Access to the power terminals, auxiliary terminal blocks and power switches is from the front.

The door can be opened to give access to the power connection bars, auxiliary terminal blocks and
power isolators. Front door can be opened at 180 degrees, and interior doors can be removed for more
flexibility in installations.

NOTE

The UPS must be placed a solid floor. There must be no openings in floor except those required
for conduit landing areas. All provided kick plates must be installed.

1.4.1 Moving the Cabinets

The route to be travelled between the point of arrival and the unit’s position must be planned to make
sure that all passages are wide enough for the unit and that floors are capable of supporting its
weight (for instance, check that doorways, lifts, ramps, etc. are adequate and that there are no
impassable corners or changes in the level of corridors).

Ensure that the UPS weight is within the designated surface weight loading (kg/cm
equipment. For weight details, see Table 10.

The UPS can be handled with a forklift or similar equipment. Ensure any lifting equipment used in
moving the UPS cabinet has sufficient lifting capacity. When moving the unit by forklift, care must be
taken to protect the panels. Do not exceed a 15-degree tilt with the forklift. Bottom structure will sup­port the unit only if the forks are completely beneath the unit.

Handling with straps is not authorized.

Mechanical Installation

2

) of any handling

WARNING

Risk of heavy unit falling over. Improper handling can cause equipment damage, injury or
death.

Because the weight distribution in the cabinet is uneven, use extreme care while handling
and transporting. Take extreme care when handling UPS cabinets to avoid equipment
damage or injury to personnel.

The UPS module weight is up to 13,200lb (5988kg).

Locate center of gravity symbols and determine unit weight before handling each
cabinet. Test lift and balance the cabinets before transporting. Maintain minimum tilt from
vertical at all times.

1.4.2 Clearances

The Liebert NXL has no ventilation grilles at either side or at the rear of the UPS. Clearance around
the front of the equipment should be sufficient to enable free passage of personnel with the doors fully
opened. It is important to leave a distance of 24in (610mm) between the top of the UPS and any over­head obstacles to permit adequate circulation of air coming out of the unit.

1.4.3 Floor Installation/Anchoring

If the equipment is to be located on a raised floor, it should be mounted on a pedestal suitably
designed to accept the equipment point loading. Refer to the base view to design this pedestal. Kick
plates must be installed. If the unit is to be installed in a position that permits access to rear kick
plates, then kick plates must be installed before the unit is placed in its final position.

4

Mechanical Installation

Note: If a maintenance bypass
cabinet is used, it must be
installed on the right side of
the Liebert NXL UPS

Liebert

NXL

UPS

Liebert

NXL

UPS

Maintenance

Bypass
Cabinet

Battery

Cabinet

Liebert

NXL

UPS

Maintenance

Bypass
Cabinet

Additional

Battery

Cabinet(s)

Battery

Cabinet

Liebert

NXL

UPS

Additional

Battery

Cabinet(s)

Battery

Cabinet

Liebert

NXL

UPS

Additional

Battery

Cabinet(s)

If the cabinets are to be bolted
together, the side panels and
hangers must be removed before
beginning.

Note: Battery cabinets can be
bolted to the right of the UPS.
However, the cabling must be
routed externally.

1.5 System Composition

A UPS system can comprise a number of equipment cabinets, depending on the individual system
design requirements: e.g., UPS cabinet, battery cabinet, maintenance bypass cabinet. In general, all
the cabinets used in a particular installation are of the same height. Refer to the drawings provided in

4.0 - Installation Drawings for the positioning of the cabinets as shown in Figure 1.

1.6 Cable Entry

Cables can enter the UPS cabinet from bottom or top into the Input/Output (I/O) section of the unit;
see the figures in 4.0 - Installation Drawings.

Figure 1 Cabinet arrangement—Liebert NXL, battery cabinets, maintenance bypass cabinet

5

2.0 UPS ELECTRICAL INSTALLATION

!

!

This chapter provides guidelines for qualified installers who must have knowledge of local wiring
practices pertaining to the equipment to be installed.

WARNING

Risk of electrical shock. Can cause injury or death.
The UPS contains high DC as well as AC voltages. Check for voltage with both AC and DC

voltmeters before working within the UPS.

Only properly trained and qualified personnel wearing appropriate safety headgear, gloves,
shoes and glasses should be involved in installing the UPS or preparing the UPS for
installation.

2.1 External Protective Devices

For safety, it is necessary to install circuit breakers in the input AC supply and external battery sys­tem. Given that every installation has its own characteristics, this section provides guidelines for
qualified installation personnel with knowledge of operating practices, regulatory standards and the
equipment to be installed.

External overcurrent protection must be provided. See Table 10 - Liebert NXL UPS specifications
for overload capacity.

UPS Electrical Installation

2.2 Power Cables

The UPS requires both power and control cabling. All control cables, whether shielded or not, should
be run separately from the power cables in metal conduits or metal ducts that are electrically bonded
to the metalwork of the cabinets to which they are connected.

The cable design must comply with the voltages and currents in Tables 11 through 14, follow local
wiring practices and take into consideration the environmental conditions (temperature and physical
support media), room temperature and conditions of installation of the cable and system’s overload
capacity (see 5.0 - Specifications).

WARNING

Risk of electrical shock. Can cause injury or death.
Before cabling the UPS, ensure that you are aware of the location and operation of the

external isolators that connect the UPS input/bypass supply to the power distribution panel.
Check that these supplies are electrically isolated, and post any necessary warning signs to

prevent their inadvertent operation.

When sizing battery cables, a maximum volt drop of 2VDC is permissible at the current ratings given
in Table 14.

The following are guidelines only and are superseded by local regulations and codes of practice where
applicable:

• Take special care when determining the size of the neutral cable (grounded conductor), because
current circulating on the neutral cable may be greater than nominal current in the case of non­linear loads. Refer to the values in Table 10.

• The grounding conductor should be sized according to the fault rating, cable lengths, type of pro­tection, etc. The grounding cable connecting the UPS to the main ground system must follow the
most direct route possible.

• Consideration should be given to the use of paralleled smaller cables for heavy currents, as this
can ease installation considerably.

• AC and DC cables must be run in conduits according to local codes, national codes and standard
best practices. This will prevent creation of excess EMI fields.

6

2.2.1 Power Cable Connection Procedure

!

!

!

The rectifier input, bypass, output and battery power cables (all require lug-type terminations) are
connected to busbars in the I/O sections (refer to 4.0 - Installation Drawings).

Equipment Ground
The equipment ground busbar is in the I/O sections as shown in (refer to 4.0 - Installation Draw-

ings). The grounding conductor must be connected to the ground busbar and bonded to each cabinet

in the system.
All cabinets and cabling should be grounded in accordance with local regulations.

NOTE

Proper grounding reduces problems in systems caused by electromagnetic interference.

WARNING

Failure to follow adequate grounding procedures can result in electric shock hazard to
personnel, or the risk of fire, should a ground fault occur.

All operations described in this section must be performed by properly trained and qualified
electricians or technical personnel. If any difficulties are encountered, contact Emerson
Network Power. See the back page of this manual for contact information.

The grounding and neutral bonding arrangement must be in accordance with local and
national codes of practice.

Once the equipment has been positioned and secured, connect the power cables as described below
(refer to the appropriate cable connection drawing in 4.0 - Installation Drawings):

1. Verify that the UPS equipment is isolated from its external power source and all the UPS power
isolators are open. Check that these supplies are electrically isolated and post any necessary
warning signs to prevent their inadvertent operation.

2. Open exterior and interior panels on the front of the I/O sections.

3. Connect the ground and any necessary main bonding jumper to the equipment ground busbar
located in the I/O sections.

4. Make power connections and tighten the connections to the proper torque.

Ensure correct phase rotation.

UPS Electrical Installation

WARNING

Risk of electrical shock. Can cause injury or death.
If the load equipment will not be ready to accept power on the arrival of the commissioning

engineer, ensure that the system output cables are safely isolated at their termination.

WARNING

Risk of electrical shock. Can cause injury or death.
When connecting the cables between the battery extremities to the circuit breaker, always

connect the circuit breaker end of the cable first.

5. For control connection details, see 2.3 - Control Cable and Communication.

NOTE

If fault bracing brackets were removed during installation, they MUST be replaced.

6. Close and secure the interior and exterior doors.

7. Attach the cabinet grounding plates to the top of the UPS at each shipping split. See Figure 2.

8. Attach the kick plates and filters to the bottom of the unit. See Figure 3.

7

Figure 2 Cabinet grounding plates

Note location
of larger cutouts.
Orient ground plate
as shown.

A

Mounting
Hardware
(Supplied)

Installed at Each Shipping Split

Detail A

INSTALL M6X25 BOLT,
LCKW AND WSHR
(4) PLACES, FRONT SIDE

INSTALL M6X25 BOLT,
LCKW AND WSHR
(2) PLACES, EACH SIDE

FRONT

KICKPLATE

KICKPLATE

REAR

KICKPLATE

KICKPLATE

INSTALL M6X25 BOLT,

LCKW AND WSHR

(4) PLACES, REAR SIDE

INSTALL M6X60 BOLT,
LCKW AND WSHR
(2) PLACES, FRONT SIDE

D

DETAIL D

E

DETAIL E

G

DETAIL G

F

Low-voltage cables can be install through the top of each unit. The entry conduit landing plate is shipped inverted.
To install, remove conduit plate, flip and reinstall. Removal of side plate is for access to pull wires.

REMOVE PLATES

FLIP PLATES

INSTALL

Figure 3 Kick plate and filter locations

UPS Electrical Installation

NOTE

Kick plates must be installed. If the unit is to be installed in a position that permits access to
rear kick plates, then kick plates must be installed before the unit is placed in its final position.

Figure 4 Low-voltage cable installation—top entry

8

2.3 Control Cable and Communication

P66C P99C

TB0823

EPO

STATUS

TB0829

EXTERNA L

CAN

TB1154B TB1154A

TB0825

TB0824

TB0826

TB0820

TB0818

TB0817

TB0819

TB0816

TB0830

TB035TB0821

P0801

TB0811

TB0810

TB0813

TB0812

TB0815

P0832

P0831

P0808

OPT

PS

INT BATT

CAN

EXT BATT

CAN

REPO

J4

REPO

FORM C

LBS VOLTAGE

EXTERNA L

CAN

MOB

MIB

RIB

MBB

BIB

KEY

STATUS

INV

CNTRLN

RECT
CNTL

BYP CNTL

ON GEN

ACT FILT
STATUS

BATT GND

FLT

ACT FILT

CNTL

MAINT BYP

ENABLE

AUX SPARE

TEMP

J5

BATT MTR

OP

TB1156

Based on your site’s specific needs, the UPS may require auxiliary connections to manage the battery
system (external battery circuit breaker), communicate with a personal computer or provide alarm
signaling to external devices, or for Remote Emergency Power Off (REPO). The External Interface
Board, arranged for this purpose, is next to the option box in the Rectifier section (refer to 4.0 -
Installation Drawings).

Figure 5 External Interface Board connections layout

UPS Electrical Installation

9

2.3.1 Dry Contacts

NOTE

If connection to more than one module is required, use a separate contact for each module.

Table 1 UPS input dry contacts

Item

Remote EPO
Input Form C

On Generator
Input Form C

Table 2 UPS control contacts with battery cabinet or module battery disconnect

Item

CAN Bus and
24V Power
Supply

Terminal

Block Pin

TB0824

TB0816

Terminal

Block Pin

TB1154A

Connects to

(Description of External Item)

1 REPO Switch, normally open contact

2 REPO Switch, common contact

REPO Switch, normally closed contact, set jumper

3

J5: 1-2 to enable, 2-3 to disable

1 On Generator switch, closed = On Generator

2 On Generator switch, common

On Generator switch,

3

closed = Not On Generator

Connects to

(Description of External Item)

1 Battery Interface Board TB1154-1

2 Battery Interface Board TB1154-2

3 Battery Interface Board TB1154-3

4 Battery Interface Board TB1154-4

UPS Electrical Installation

Wire Size/

Max Length

14AWG/

500ft.

Wire Size/

Max Length

18 AWG

1000ft.

Table 3 UPS control contacts with maintenance bypass

Terminal

Item

Maintenance
Isolation Breaker
(MIB) Form C

1

Maintenance Bypass
Breaker (MBB) Form C

Maintenance Bypass
Enable Form C

Remote EPO Input

1

1

1

Block Pin

TB0811

TB0813

TB0821

TB0825

(Description of External Item)

1 CB aux. contact, closed = CB is closed
2 CB aux. contact, common
3 CB aux. contact, closed = CB is open
1 CB aux. contact, closed = CB is closed
2 CB aux. contact, common
3 CB aux. contact, closed = CB is open

Maintenance Bypass Cabinet,

1

closed = load not on inverter

2 Maintenance Bypass Cabinet, common

Maintenance Bypass Cabinet,

3

closed = load on inverter
1 REPO Switch, normally open contact
2 REPO Switch, common contact
1 Key status switch, closed = key removed

Key Status Input Form C

TB0820

2 Key status switch, common

1

3 Key status switch, closed = key inserted

Module Output Breaker
(MIB) Form C

2

Rectifier Input Breaker
(RIB) Form C

TB0815

TB0810

1 CB aux. contact, closed = CB is closed
2 CB aux. contact, common
3 CB aux. contact, closed = CB is open
1 CB aux. contact, closed = CB is closed
2 CB aux. contact, common
3 CB aux. contact, closed = CB is open
1 CB aux. contact, closed = CB is closed

Bypass Input Breaker
(BIB) Form C

1. For 1+N systems with a maintenance Bypass, these Aux contacts must be run to each module from an isolated source.

2. For 1+N systems, these breaker Aux contact go to the UPS that it is associated with.

TB0812

2 CB aux. contact, common

CB or Switch aux. contact,
3

closed = CB or switch is open

Connects to

Wire Size/

Max Length

14AWG/500ft.

(152m)

14AWG/500ft.

(152m)

14AWG/500ft.

(152m)

14AWG/500ft.

(152m)

14AWG/500ft.

(152m)

14AWG/500ft.

(152m)

14AWG/500ft.

(152m)

14AWG/500ft.

(152m)

10

Table 4 UPS control contacts to remote status panel

Item

CAN Bus and 24V
Power Supply

Terminal

Block Pin

TB0829

(Description of External Item)

1 Remote Status Panel TB-2

2 Remote Status Panel TB-1

3 Remote Status Panel TB-3

4 Remote Status Panel TB-4

Connects to

Wire Size/

Max Length

18 AWG/1000ft.

(304m)

2.3.2 Analog Load Bus Synch Connection to Non-Liebert NXL Equipment

Refer to Figures 29 through 31 for layouts.

Table 5 UPS control contacts with analog LBS

Terminal Designation

Signal Name Wire Range/Max LengthFrom To

ANALOG LBS SIGNALS FROM UPS POWER BUS BARS TO LBS TRANSFORMER BOX

V-OUT-A F72 CRITICAL BUS VOLTS PH A

V-OUT-C F74 CRITICAL BUS VOLTS PH C

V-BYP-A F69 BYPASS VOLTS PH A

V-BYP-C F71 BYPASS VOLTS PH C

ANALOG LBS SIGNALS FROM UPS LBS INTERFACE BOARD TO LBS TRANSFORMER BOX

TB0826-1 TB27-7 SYNCH PH A

TB0826-5 TB27-9 SYNCH PH C

UPS Electrical Installation

#14-22AWG/500FtV-OUT-B F73 CRITICAL BUS VOLTS PH B

#14-22AWG/500FtV-BYP-B F70 BYPASS VOLTS PH B

#14-22AWG/500FtTB0826-3 TB27-8 SYNCH PH B

ANALOG LBS SIGNALS FROM UPS LBS TRANSFORMER BOX ASSEMBLY TO LBS BOX - SYSTEM #1

TB27-7 TB4-4 SYNCH PH A

TB27-8 TB4-5 SYNCH PH B

TB27-9 TB4-6 SYNCH PH C

TB27-4 TB3-1 CRITICAL BUS VOLTS PH A

TB27-5 TB3-2 CRITICAL BUS VOLTS PH B

TB27-6 TB3-3 CRITICAL BUS VOLTS PH C

TB27-1 TB2-2 BYPASS VOLTS PH A (V&I BOARD IN LBS BOX)

TB27-2 TB2-5 BYPASS VOLTS PH B (V&I BOARD IN LBS BOX)

TB27-3 TB2-9 BYPASS VOLTS PH C (V&I BOARD IN LBS BOX)

TB27-11 TB1-1 LBS POWER SUPPLY

TB27-12 TB1-2 LBS POWER SUPPLY

ANALOG LBS SIGNALS FROM UPS INTER-MODULE COMMUNICATION BOARD TO LBS BOX - SYSTEM #1

P3105-3 TB1-1 SYNCH TO MASTER (LBS BOARD IN LBS BOX)

P3105-4 TB1-2 SYNCH TO MASTER RETURN (LBS BOARD IN LBS BOX)

P3107-2 TB5-5

P3107-1 TB5-4 SYSTEM ON BYPASS (N.C.) (V&I BOARD IN LBS BOX)

P3107-6 TB1-7

P3107-5 TB1-8

SYSTEM ON BYPASS (N.C.) RETURN (V&I BOARD IN
LBS BOX)

TRANSFERRED TO BYPASS (LBS BOARD IN LBS BOX) ­FOR ACTIVE LBS OPTION

TRANSFERRED TO BYPASS RETURN (LBS BOARD IN
LBS BOX) - FOR ACTIVE LBS OPTION

#14-22AWG/500Ft

#18AWG/500Ft

#14-22AWG/500Ft

#14-22AWG/500Ft

11

Table 5 UPS control contacts with analog LBS (continued)

Terminal Designation

Signal Name Wire Range/Max LengthFrom To

Analog LBS Signals from UPS LBS Transformer Box Assembly to LBS Box - System #2

TB27-7 TB3-4 SYNCH PH A

TB27-8 TB3-5 SYNCH PH B

TB27-9 TB3-6 SYNCH PH C

TB27-4 TB4-1 CRITICAL BUS VOLTS PH A

TB27-5 TB4-2 CRITICAL BUS VOLTS PH B

TB27-6 TB4-3 CRITICAL BUS VOLTS PH C

TB27-1 TB3-1 BYPASS VOLTS PH A (V&I BOARD IN LBS BOX)

TB27-2 TB3-5 BYPASS VOLTS PH B (V&I BOARD IN LBS BOX)

TB27-3 TB3-10 BYPASS VOLTS PH C (V&I BOARD IN LBS BOX)

TB27-11 TB2-1 LBS POWER SUPPLY

TB27-12 TB2-2 LBS POWER SUPPLY

Analog LBS Signals from UPS Inter-Module Communication Board to LBS Box - System #2

P3105-3 TB2-1 SYNCH TO MASTER (LBS BOARD IN LBS BOX)

P3105-4 TB2-2 SYNCH TO MASTER RETURN (LBS BOARD IN LBS BOX)

P3107-2 TB5-2

P3107-1 TB5-1 SYSTEM ON BYPASS (N.C.) (V&I BOARD IN LBS BOX)

P3107-6 TB2-7

P3107-5 TB2-8

SYSTEM ON BYPASS (N.C.) RETURN (V&I BOARD IN
LBS BOX)

TRANSFERRED TO BYPASS (LBS BOARD IN LBS BOX) ­FOR ACTIVE LBS OPTION

TRANSFERRED TO BYPASS RETURN (LBS BOARD IN
LBS BOX) - FOR ACTIVE LBS OPTION

UPS Electrical Installation

#14-22AWG/500Ft

#18AWG/500Ft

#14-22AWG/500Ft

#14-22AWG/500Ft

Analog LBS Signals from UPS LBS Transformer Box Assembly to ELBS BOX

TB27-7 TB4-4 SYNCH PH A

TB27-8 TB4-5 SYNCH PH B

TB27-9 TB4-6 SYNCH PH C

TB27-4 TB3-4 CRITICAL BUS VOLTS PH A

TB27-5 TB3-5 CRITICAL BUS VOLTS PH B

TB27-6 TB3-6 CRITICAL BUS VOLTS PH C

TB27-1 TB2-2 BYPASS VOLTS PH A

TB27-2 TB2-5 BYPASS VOLTS PH B

TB27-3 TB2-9 BYPASS VOLTS PH C

TB27-11 TB1-1 LBS POWER SUPPLY

TB27-12 TB1-2 LBS POWER SUPPLY

Analog LBS Signals from UPS/SCC Inter-Module Communication Board to ELBS Box

P3105-3 TB1-1 SYNCH TO MASTER (LBS BOARD IN LBS BOX)

P3105-4 TB1-2 SYNCH TO MASTER RETURN (LBS BOARD IN LBS BOX)

P3107-2 TB5-5

SYSTEM ON BYPASS (N.C.) RETURN (V&I BOARD IN
LBS BOX)

P3107-1 TB5-4 SYSTEM ON BYPASS (N.C.) (V&I BOARD IN LBS BOX)

#14-22AWG/500Ft

#18AWG/500Ft

#14-22AWG/500Ft

12

2.3.3 Multi-Module Communication

Paralleling cables that connect the module to the system are connected to terminals P3101 and P3103
on the Inter-Module Communication (IMC) board (refer to 4.0 - Installation Drawings).

Table 6 Parallel from UPS module Inter-Module Communication Board to other Inter-Module

Communication Board in system

Terminal Designation

Primary Connections

P3101-1 P3101-1 Share CAN +24V

P3101-2 P3101-2 Share CAN common

P3101-3 P3101-3 System CAN +24V

P3101-4 P3101-4 System CAN common

P3101-5 P3101-5 SER synch CAN+24V

P3101-6 P3101-6 SER synch CAN common

P3101-7 P3101-7 Ground

P3101-14 P3101-14 Ground

P3101-8 P3101-8 PWM synch CAN +24V

P3101-9 P3101-9 PWM synch CAN common

P3101-10 P3101-10 MMS synch CAN +24V

P3101-11 P3101-11 MMS synch CAN common

P3101-12 P3101-12 LBS synch CAN +24V

P3101-13 P3101-13 LBS synch CAN common

Redundant Connections

P3103-1 P3103-1 Redundant share CAN +24V

P3103-2 P3103-2 Redundant share CAN common

P3103-3 P3103-3 Redundant system CAN +24V

P3103-4 P3103-4 Redundant system CAN common

P3103-5 P3103-5 Redundant SER synch CAN +24V

P3103-6 P3103-6 Redundant SER synch CAN common

P3103-7 P3103-7 Ground

P3103-14 P3103-14 Ground

P3103-8 P3103-8 Redundant PWM synch CAN +24V

P3103-9 P3103-9 Redundant PWM synch CAN common

P3103-10 P3103-10 Redundant MMS synch CAN +24V

P3103-11 P3103-11 Redundant MMS synch CAN common

P3103-12 P3103-12 Redundant LBS synch CAN +24V

P3103-13 P3103-13 Redundant LBS synch CAN common

1. Must only use Belden 8106 or Belden 8102.

2. Each cable group should be run in a separate grounded conduit to ensure redundancy.

3. The maximum lengths must include all the parallel cables from the first module to the last module. The primary and redundant
cable lengths can be counted separately. The ground pins on the Inter-Module Communication Board (pins 7 and 14) are
connected together on the board. If using cable with only one (1) drain wire, then connect to the ground to pin 7.

4. If using (4) Belden 8102 cables, all (4) cables must be run in the same conduit.

Signal Name

UPS Electrical Installation

Wire Size/

Max LengthFrom To

#18AWG/

1000ft

#18AWG/

1000ft

13

Figure 6 Inter-Module Communication Board wiring diagram—Multi-modules

UPS 1 UPS 2

UPS 3

P3103

P3101

P3103

P3101

P3103

P3101

IMC

02-806730-xx

IMC

02-806730-xx

IMC

02-806730-xx

A

B

C

E

RIB

10A 10A 10A

IN_LINE_A

IN_LINE_B

IN_LINE_C

INPUT EMI

FILTER

IN_LOAD_A

IN_LOAD_B

IN_LOAD_C

A

B

C

A

B

C

LIN E LOAD

V_IN_R_A

V_IN_R_B

V_IN_R_C

4 CB1_COIL_RTN

3_CB1_NO(CBCLOSED )

2_CB1_NC(CB OPEN)

5CB1_COIL

1_CB1_COM

Inside UPS Cabinet

RIB
UVR Coil
(48VDC)

RIB Status
Contacts

120-240VAC

Close

RIB

RCB1

Elect ric al

Operator

120-240 Vac
(suppl ied by

swit chgear vendor )

5_M TR_OP_ CLOSE

2_M TR_OP_ ENA BLE

Circuit Breaker

Interface

Board

02-806711- 01

Inside Switchgear

To Customer

Input

Terminals

121212

RIB-1

1

1

Fuses should be 10A class CC or J type time delay
fuse

2

Electrical operator power provided by switchgear
vendor and shall be powered from line side of RIB

TB1

TB1-1

TB1-2

TB1-3

2

TB1101

TB1102

2.3.4 Remote Input Breaker (RIB)

For systems that use Remote Input Breakers (RIB), the controls for the Aux contacts, UVR, Motor
Operator (optional) and voltage sense will go between the Remote breaker and the UPS Input I/O sec­tion. See Figure 7.

Figure 7 Remote Input Breaker diagram

UPS Electrical Installation

14

UPS Electrical Installation

RIB must be Listed UL 489 (Molded Case Circuit Breaker) or UL 1066 (Low Voltage AC Power Cir­cuit Breaker) that are required to be used in UL-listed switchgear or switchboards. The circuit
breaker must have a short-time rating not exceeding 480 Volts at 150K Amperes, for 5 cycles.

See Table 11 for required current ratings.

Table 7 RIB UV coil, aux. contacts from UPS RIB CB interface board to remote CB1

Terminal Designation

Signal Name

TB1101-1 RIB aux. common

TB1101-2 RIB aux. N.C. (closed = CB is open)

Remote Breaker

Contacts

Remote RIB motor operator control contacts from remote breaker to UPS RIB CB interface

Remote Breaker Motor

Operator Contacts

Remote RIB voltage sense from remote breaker to UPS

Remote Breaker

Voltage Sense

TB1101-3 RIB aux. N.O. (closed = CB is closed)

TB1101-4 RIB trip coil (-)

TB1101-5 RIB trip coil (+)

board (optional)

TB1102-2 AC line

TB1102-5 Motor operator close

TB1-1 Voltage sense PH A

TB1-2 Voltage sense PH B

TB1-3 Voltage sense PH C

Wire Size/

Max LengthFrom To

#14AWG/

500ft

#14AWG/

500ft

#14AWG/

500ft

15

2.3.5 Inverter Output Breaker (IOB)

A

B

C

E

IOB

5A 5A 5A

OUT_LINE_A

OUT_LINE_B

OUT_LINE_C

OUTPUT EMI

FILTER

OUT_L OAD_A

OUT_L OAD_B

OUT _LOAD_C

A

B

C

A

B

C

LIN E LOAD

V_CB_A

V_CB_B

V_CB_C

TB1101

TB1102

4 CB2_ COI L_R TN

3_CB2_NO (CB CLOSED)

2_C B2_N C (CB OPEN )

5 CB2_ COI L

1_C B2_C OM

Inside UPS Cabinet

IOB UVR

Coil

(48VDC)

Circ uit Break er Interface

Board

02- 806711 -01

Inside Switchgear

To UPS

Output Customer

Connections

1212

1

2

IOB-1

N

1

1

Fuses should be 5A class CC or J type time delay fuse

OUT _LOAD_N

OUT_LINE_N

N

2

Electrical operator power pr ovided by switchgear vendor
and shall be powered from UPS side of IOB

N

120 -240 Vac

Close

IOB-x

IOB
Electr ical
Operator

120 -240 Vac

(suppli ed by

swi tchgear v endor )

5_M TR_O P_C LOSE

2_M TR_O P_EN ABLE

TB2

TB2-1

TB2-2

TB2-3

TB2-4

2

IOB Status

Contact s

For systems that use Inverter Output Breakers (IOB), the controls for the Aux contacts, UVR, Motor
Operator (optional) and voltage sense will go between the Remote breaker and the UPS Output I/O
section. See Figure 8.

IOB must be Listed UL 489 (Molded Case Circuit Breaker) or UL 1066 (Low Voltage AC Power Cir­cuit Breaker) that are required to be used in UL-listed switchgear or switchboards. The circuit
breaker must have a short-time rating not exceeding 480 Volts at 150K Amperes, for 5 cycles.

Figure 8 Remote Output Breaker diagram

UPS Electrical Installation

See Table 12 for required current ratings.

16

Table 8 Remote IOB contacts from remote breaker to UPS IOB CB interface board

Terminal Designation

Remote Breaker

Contacts

Remote IOB contacts from remote breaker to UPS IOB CB interface board

Remote Breaker Motor

Operator Contacts

Remote IOB contacts from remote breaker to UPS IOB CB interface board

Remote Breaker

Voltage Sense

2.4 Digital LBS

The Load Bus Sync interface enables independent UPS units to remain in sync when operating on
battery or when supplied by unsynchronized input sources.

Signal Name

TB1101-1 IOB aux. common

TB1101-2 IOB aux. N.C. (closed = CB is open)

TB1101-3 IOB aux. N.O. (closed = CB is closed)

TB1101-4 IOB trip coil (-)

TB1101-5 IOB trip coil (+)

TB1102-2 AC line

TB1102-5 Motor operator close

TB1-1 Voltage sense PH A

TB1-2 Voltage sense PH B

TB1-3 Voltage sense PH C

UPS Electrical Installation

Wire Size/

Max LengthFrom To

#14AWG/

500ft

#14AWG/

500ft

#14AWG/

500ft

Digital LBS cables that connect the module to the system are connected to terminals P3108 and
P3109 on the Inter-Module Communication (IMC) board. See Figure 9.

Table 9 Wire size, length for digital LBS connection of UPS Inter-Module Communication

Boards

Terminal Designation

Signal Name

Digital LBS from UPS Inter-Module Communication Board to other UPS Inter-Module
Communication Board

P3108-1 P3108-1 LBS SYNCH CANH

P3108-2 P3108-2 LBS SYNCH CANL

P3108-3 P3108-3 GROUND

P3108-4 P3108-4 GROUND

Redundant Digital LBS from UPS Inter-Module Communication Board to Other UPS
Inter-Module Communication Board

P3109-1 P3109-1 REDUNDANT LBS SYNCH CANH

P3109-2 P3109-2 REDUNDANT LBS SYNCH CANL

P3109-3 P3109-3 GROUND

P3109-4 P3109-4 GROUND

1. Must only use Belden 8104 or (2) Belden 8102.

2. Each cable group should be run in a separate grounded conduit to ensure redundancy.

3. The maximum lengths must include all the LBS cables from the first module to the last module.

4. The primary and redundant cable lengths can be counted separately.

5. If using (2) Belden 8102 cables, all (2) cables must be run in the same conduit.

Wire Size/

Max LengthFrom To

#18AWG/1000ft

(300m)

#18AWG/1000ft

(300m)

17

Figure 9 Inter-Module Communication Board wiring diagram—Digital LBS

!

UPS 1 UPS 2

UPS 3

P3108

P3109

P3108

P3109

P3108

P3109

IMC

02-806730-xx

IMC

02-806730-xx

IMC

02-806730-xx

2.5 Configuring Neutral and Ground Connections

Improper grounding is the largest single cause of UPS installation and startup problems. Grounding
techniques vary significantly from site to site, depending on several factors.

Proper grounding should be based on NEC Section 250, but safe and proper equipment operation
requires further enhancements. The following pages detail recommendations for grounding various
system configurations to ensure optimal UPS system performance.

NOTE

Some UPS modules are equipped with input isolation transformers. However, these
transformers have no effect upon any system grounding considerations. These modules will be
grounded exactly as shown in Figures 1 through 9.

UPS Electrical Installation

CAUTION

The UPS ground lug must be solidly connected to the service entrance ground by an
appropriately sized wire conductor per NEC Article 250. Each conduit or raceway containing
phase conductors must also contain a ground wire, both for UPS input and output, which are
solidly connected to the ground terminal at each termination point. Conduit-based grounding
systems tend to degrade over time. Therefore, using conduit as a grounding conductor for UPS
applications may degrade UPS performance and cause improper UPS operation.

2.5.1 Four-Wire Input connections

The UPS module main input and bypass input are connected to a grounded service. In this configura­tion, the UPS module is not considered a separately derived source. The UPS module output neutral
is solidly connected to the building service neutral, which is bonded to the grounding conductor at the
service entrance equipment.

Advantages of this configuration include:

• A measure of common-mode noise attenuation, since the isolation (common-mode rejection) occurs
as close to the load as practical (i.e., at the PDU).

• The UPS module can be located remotely from the PDU without compromising common-mode
noise performance.

• By using UPS modules with 480VAC input and output and creating 208VAC at the PDU, smaller
and less costly power feeders can be used and less voltage drop (as a percent of nominal) occurs.

18

2.5.2 Three-Wire Input connections

This configuration must NOT be used when single-phase loads are directly connected to the UPS.

The UPS output transformer is considered a separately derived source. The UPS module neutral is
bonded to the UPS ground, which is connected to a local grounding electrode in accordance with
NEC 250-26. Please note that this configuration represents a price/performance trade-off. Whenever
the UPS module transfers to or from bypass, two AC sources (input and bypass) are briefly connected
together and circulating current must flow. In this configuration, the current flows through the
ground path, possibly tripping ground fault interrupters (GFIs) and distorting the bypass waveform
reference. Proper adjustment of ground fault interrupters is necessary to avoid unwanted tripping.
The time delay should be set to at least 0.2 seconds to prevent tripping when the UPS performs a
transfer or retransfer operation.

CAUTION

Failure to set the ground fault interrupters properly could cause loss of power to the critical
load.

2.5.3 Preferred Grounding Configuration, Battery Systems

Open-rack battery systems, depending on local code requirements and customer preference, are nor­mally:

• Floating (ungrounded)

• Center-tapped and floating or

• Center tapped and grounded

UPS Electrical Installation

Battery cabinet systems must be connected as floating (ungrounded) systems.

Center-tapped or grounded battery systems are not possible with battery cabinet systems.

Whether the battery system is open-rack or cabinet, the metal rack parts or cabinet must be grounded
to the UPS module ground bus.

2.5.4 Multi-Module Systems

For both N+1 and 1+N systems, the neutrals of all UPS modules in the system must be connected
together inside the switchgear or parallel cabinet. The neutral conductors must be rated for 50% of
phase conductor current minimum. Site and load conditions will determine if larger neutrals are
required.

For Multi-Module systems using a 3-wire bypass, the Neutral-Ground bond must be made at the com­mon neutral connection point in the switchgear or parallel cabinet.

19

3.0 OPTIONAL EQUIPMENT

3.1 Single-Module System Options

3.1.1 Matching Maintenance Bypass Cabinet

A matching Liebert NXL Maintenance Bypass cabinet is available. See Maintenance Bypass Cabinet
Installation Manual (SL-24532) for more details.

3.1.2 Battery Temperature Sensor

The optional external battery temperature sensor kit, supplied separately from the battery circuit
breaker, contains one probe and one temperature transport board.

3.1.3 Matching Liebert NXL Battery Cabinet

The optional matching Liebert NXL Battery Cabinet can be used to obtain the desired autonomy
time. The battery cabinets are designed to be either attached to the UPS or installed in a separate
battery room (for details, see the Liebert NXL Battery Cabinet installation manual, SL-25430, avail­able at Emerson Network Power’s Liebert Web site: www.liebert.com).

3.1.4 Matching Module Battery Disconnect—MBD

The optional Module Battery Disconnect (MBD) can be used as a battery disconnect between a battery
system and the Liebert NXL UPS. The battery cabinets are designed to be either attached to the UPS
or battery cabinet or installed in a separate battery room (for details, see the Liebert NXL Battery
Cabinet installation manual, SL-24530, available at Emerson Network Power’s Liebert Web site:

www.liebert.com).

Optional Equipment

3.1.5 Load Bus Synch

An optional Load Bus Synch (LBS) system can be used to synchronize two Liebert NXL UPS units or
a Liebert NXL UPS to a Liebert Series 610 UPS.

3.1.6 Remote Alarm Panel

The remote alarm panel has LED alarm lights. An audible alarm sounds upon any alarm condition.
The surface- or flush-mounted NEMA 1 enclosed panel indicates: Load on UPS, Load on Bypass, Bat­tery Discharging, Low Battery Warning, Overload Warning, Ambient Overtemp Warning, UPS
Alarm Condition, New Alarm Condition (For a Second UPS Alarm Condition).

3.2 Communication and Monitoring

• Liebert IntelliSlot® Web Card - SNMP/HTTP Network Interface Card

• Liebert IntelliSlot

• Remote Monitoring Services IntelliSlot Card

• RS485/422 Protocol Converter IntelliSlot Card

• Programmable Relay Board

• Input Contact Isolator Board

3.2.1 Alber Monitoring System

The matching Liebert NXL Battery Cabinet allows installing an optional Alber Battery monitoring
system in the cabinet. The Alber Battery Monitoring by Liebert continuously checks all critical bat­tery parameters, such as cell voltage, overall string voltage, current and temperature. Automatic
periodic tests of internal resistance of each battery will verify the battery’s operating integrity. Addi­tional capabilities include automatic internal DC resistance tests and trend analysis, providing the
ability to analyze performance and aid in troubleshooting.

®

485 Web Card - Modbus, J-bus, IGM Net

20

Installation Drawings

U40-5C-2000
Rev. 0

OPTION BOX

(6 SLOTS)

LIEBERT INTELLISLOT

HOUSINGS

MAIN INPUT

CIRCUIT BREAKER

(CB1)

MODULE OUTPU T
CIRCUIT BREAKER
(CB2)

BACK FEED
CIRCUIT BREAKER
(BFB)

INPUT

BUS BARS

DOORS AND INNER SKINS REMOVED

FRONT DOORS REMOVED

KEYLOCK OR

EMO BUTTON

(OPTIONAL)

HMI SCREEN

INTER-MODULE
COMMUNIC ATION
BOARD, LOCATED

BEHIND HMI SCREEN

BUSBARS

BYPASS

INPUT

GROUND

OUTPUT
GROUND

BUSBARS

OUTPUT

DC (+)

INPUT

DC (-)

INPUT

4.0 INSTALLATION DRAWINGS

Figure 10 Main components, 500kVA Liebert NXL 1+N multi-module or SMS with static bypass

21

Installation Drawings

U40-5C-2001
Rev. 0

NOTES:

1. All dimensions are in inches (mm).

2. 24" (610) minimum clearance above unit required for air exhaust.

3. Keep cabinet within 15 degrees of vertical.

4. Top and bottom cable entry available through removable access plates.
Remove, punch to suit conduit size and replace.

5. Unit bottom is structurally adequate for forklift handling.

6. Control wiring and power wiring must be run in separate conduits.

7. Aluminum and copper-clad aluminum cables are not recommended.

8. All wiring is to be in accordance with national and local electrical codes.

9. Depth dimension includes front door and rear panel.

10. Width dimensions include side panels. Subtract 1.4" (35mm) when
removing both side panels.

INVERTER SPLI T (PART B)

LEFT SIDE VIEW FRONT VIEW

RECTIFIER SPLI T (PART A)

RIGHT SIDE VIEW

.0

.0

DETAIL B

SECTION A-A

BOTTOM VIEW

AA

TOP VIEW

25.5

[647mm]

32.3"

[820mm]

49.2" [1250mm] 62.4" [1585mm]

111.6 [2835mm]

39.6 [1005mm]

76.8"

[1950mm]

35.7"

[906mm]

14.9"

[379mm]

69.8"

[1773mm]

25.8"

[654mm]

10.8"

[273mm]

96.8" [2458mm]

10.8"

[274mm]

14.6"

[370mm]

1.25"

[31.9mm]

10.8"

[275mm]

2.92"

[74mm]

15.6"

[396mm]

10.6

[269mm]

RECTIFIER / DC

CABLE ENTRY

CONTRO L CABLE
ENTRY/EXIT

BYPASS/OUTPUT

CABLE ENTRY/EXIT

CABLE
ENTRY

BYPASS/OUTPUT

CABLE ENTRY/EXIT

RECTIFIER
CENTER
OF
GRAVITY

INVERTER
CENTER
OF

GRAVITY

0.6 [15mm]

PANEL WIDTH

FRONT MOST

EDGE OF FRAME

OUTER EDGE

CORNER POS T

Figure 11 Outline drawing, Liebert NXL 500kVA UPS 1+N multi-module or SMS with static bypass

22

Installation Drawings

NOTES:

1. All dimensions are in inches (mm).

2. Control wiring and power wiring must
be run in separate conduit.

3. Aluminum and copper-clad aluminum
cables are not recommended.

4. All wiring is to be in accordance with national
and local electrical codes.

5. See page 2 of 2, drawing number: U40-5E-3201

CB1-3

CB1-3

DUAL LUG CONNECTION DETA IL

Do not double stack lugs (two lugs on sameS
ide of busbar). This is to prevent the cablesF
rom coming into contact with other busbars.

LUGS

BUS BAR

BOLT

U40-5E-3200
Rev. 0

LEFT SIDE (PART A) LEFT FRONT (PART A)

GROUND BUS

DC INPUT

INPUT

PHASES

CBA

D

C

(

+

)

I

N

P

U

T

D

C

(

-

)

I

N

P

U

T

.0

29.5 (749)

42.4

(1077)

45.6

(1158)

48.8 (1240)

54.6 (1387)

59.2 (1504)

1.75
(44)

TYP

1.75
(44)

TYP

Ø0.50

(13)
TYP

DC INPUTS

GROUND

Ø0.50

(13)

TYP

1.75
(44)

TYP

1.75
(44)

TYP

INPUT PHASES

1.75
(44)
TYP

Ø0.50

(13)
TYP

1.75
(44)
TYP

3.0

(76)

3.0

(76)

3.0
(76)

76.8(1950)

Figure 12 Output terminal details, Pg. 1, Liebert NXL 500kVA UPS 1+N multi-module or SMS with static

bypass

23

Installation Drawings

Figure 13 Output terminal details, Pg. 2, Liebert NXL 500kVA UPS 1+N multi-module or SMS with static

bypass

1.75
(44)

Ø0.50

(13) TYP

TYP

2.56
(65)
TYP

2.56
(65)

TYP

8.7

(220)

OUTPUT, BYPASS & NEUTRAL

76.8
(1950)

59.2
(1504)

44.7
(1135)

31.1
(790)

13.8

(350)

OUTPUT

GROUND

BYPASS &

NEUTRAL

OUTPUT &
NEUTRAL

Ø0.50

1.75
(44)

TYP

OUTPUT GROUND

FRONT

ABCN

ABCN

(13)
TYP

2.36
(60)
TYP

2.36
(60)

TYP

NOTES:

1.All dimensions are in inches (mm).

3. Aluminum and copper-clad aluminum cables
are not recommended.

4. All wiring is to be in accordance with national
and local electrical codes.

5. See page 1 of 2 , drawing number: U40-5E-3200

CB1-3

CB1-3

Do not double stack lugs (two lugs
on same side of busbar).
This is to prevent the cables from
coming into contact with other busbars.

LUGS

BUSBAR

BYPASS
PHASES &
NEUTRAL
BUS

BOLT

DUAL LUG

CONNECTION DETAIL

OUTPUT
PHASES &
NEUTRAL
BUS

RIGHT FRONT (PART B)

.0

(0)

RIGHT SIDE (PART B)

U40-5E-3201
Rev. 0

24

Installation Drawings

U40-5L-1000
Rev. 0

BRACKET MOUNTING LOC ATIONS

(M10 HEXSERTS)

FOOTPRIN T SPACING

LIFT CLEARANCE

SHIPPING SPLIT

RECTIFIER SECTION

(PART A)

NOTES:

1. All dimensions are in inches (mm).

2. Unit bottom is structurally adequate for
forklift handling.

INVERTER SECTION

(PART B)

BOTTOM CABLE ENTRY PANELS

PILLARS REMOVED FOR CLARIT Y

RECTIFIER SECTION

(PART A)

INVERTER SECTION

(PART B)

BOTTOM INPUT (PART A)

BOTTOM OUTPUT (PART B)

FRONT VIEW

RIGHT SIDE

BOTTOM VIEW

FRONT VIEW

RIGHT SIDE

2.2

[56]

33.3

[845]

10.9

[276]

DETAIL A

27.2

[691]

3.9

[99]

4.7 [120]
TYP.

3.9 [100]
TYP.

7.9 [200]
TYP.

37.2

[945]

PILLAR

SPACING

36.7

[931]

FOOT

SPACING

.75

[19]

TYP.

2.4

[61]

21.0

[535]

1.7

[42]

21.0

[535]

4.8

[122]

12.1

[307]

1.7

[42]

13.9

[354]

1.7
[42]

13.9
[354]

1.7

[42]

12.1
[307]

FORKLIFT OPENINGS

3.9

[99]

48.6

[1234]

FORKLIFT OPENINGS

61.8

[1570]

3.9

[100]

9.0

[229]

10.9

[276]

9.0

[229]

18.0

[457]

18.0

[457]

REAR

FRONT

SEE A

8.0 [202]

8.0 [202]

Figure 14 Base drawing, Liebert NXL 500kVA UPS 1+N multi-module or SMS with static bypass

25

Figure 15 Main components, 750kVA Liebert NXL UPS without static bypass

Liebert
IntelliSlot
Housings

HMI Screen

Inter-Module
Communication Board
(IMC) (behind door)

EMO Button
(Optional)

Option Box
(6 Slots)

Main Input
Circuit Breaker
(CB1)

Module Output
Circuit Breaker
(CB2)

Output

CB2/IOB Circuit
Breaker Board

Busbars

Neutral

Output
Ground

DC Input

External
Interface
Board (EIB)

Input
Busbars

Input
Ground

CB1/RIB Circuit
Breaker Board

FRONT DOORS REMOVED

DOORS AND INNER SKINS REMOVED

Installation Drawings

26

Figure 16 Main components, 750kVA Liebert NXL UPS with static bypass (SMS OR 1+N)

OPTION BOX

(6 SLOTS)

LIEBERT
INTELLISLOT
HOUSINGS

MAIN INPUT

CIRCUIT BREAKER

(CB1)

MODULE OUTPUT
CIRCUIT BREAKER
(CB2)

BACK FEED
CIRCUIT BREAKER
(BFB)

KEYLOCK OR
EMO BUTTON

(OPTIONAL)

INPUT

GROUND

INPUT

BUS BARS

DC INPUT

OUTPUT
BUS BARS

BYPASS
BUS BARS

FRONT DOORS REMOVED

DOORS AND INNER SKINS REMOVED

HMI SCREEN

CB2/IOB
CIRCUIT BREAKER
INTERFACE BOARD

CB1/RIB

CIRCUIT BREAKER

INTERFACE BOARD

EXTERNAL INTERFACE

BOARD (EIB)

pxqc;INTER-MODULE
COMMUNICATION BOARD
(LOCATED BEHIND HMI SCREEN)

Installation Drawings

27

Figure 17 Outline drawing, 750kVA Liebert NXL without static bypass

U40-7d-2001

NOTES:

1. All dimensions are in inches (mm).

2. 24" (610) minimum clearance above unit required for air exhaust.

3. Keep cabinet within 15 degrees of vertical.

4. Top and bottom cable entry available through removable access plates.
Remove, punch to suit conduit size and replace.

5. Unit bottom is structurally adequate for forklift handling.

6. Control wiring and power wiring must be run in separate conduits.

7. Aluminum and copper-clad aluminum cables are not recommended.

8. All wiring is to be in accordance with national and local electrical codes.

9. Depth dimension includes front door and rear panel.

10. Width dimensions include side panels. Subtract 1.4" (35mm) when removing
both side panels.

11. See technical data drawing for shipping split weights.

Rectifier / DC

Cable Entry

Control Cable
Entry \ Exit

Bypass \ Output
Cable Exit

Rectifier / DC
Cable Entry

Control Cable
Entry / Exit

Outer Edge
Corner Post

Front Most
Edge Of Frame

Bypass \ Output
Cable Exit.

Rectifier

Center of

Inverter

71.6

[1819]

62.4

[1585]

62.4

[1585]

Inverter Split (Part B)

15.8

[402]

3.7

[94]

17.6

[447]

.0

(0)

.0

(0)

3.3

[85]

14.8

[376]

2.1

[53]

19.1

[486]

24.6

[626]

15.2

[385]

4.1

[105]

.0

(0)

0

.6

[15]

Panel Width

76.8

[1950]

14.4

[367]

11. 6

[294]

109.9 (2791)

10.6

[269]

1.6

[40]

17.7

[449]

23.6

[600]

12.3

[312]

24.6

[625]

31.5

[800]

36.3

[922]

26.0

[660]

31.5

[800]

23.8

[605]

Section A-A

Bottom View

B

Detail B

AA

Gravity

Center of

Gravity

125 (3175)

39.4 (1000)

Right Side View

Left Side View

To p Vi ew

Front View

Rectifier Split (Part A)

16.6

[423]

Installation Drawings

28

Installation Drawings

RECTIFIER

CENTER OF

62.5
[1587]

78.0
[1981]

INVERTER SPLIT (PART B)

24.6

[625]

31.5

[800]

36.3

[922]

29.1

[739]

A

GRAVITY

140.5

[3568]

LEFT SIDE VIEW FRONT VIEW

RECTIFIER SPLIT (PART A)

A

INVERTER

76.8
[1950]

34.1

[866]

23.8

[605]

CENTER OF

GRAVITY

39.4

[1000]

RIGHT SIDE VIEW

OUTER EDGE

CORNER POST

FRONT MOST

EDGE OF FRAME

.0

(0)

.0

(0)

.6

[15]

PANEL WIDTH

DETAIL B

RECTIFIER / DC

CABLE ENTRY

CONTROL CABLE

ENTRY \ EXIT

71.6
[1819]

15.8

[402]

3.7

[94]

17.6

[447]

TOP VIEW

16.6

[423]

11. 9

[302]

34.3

[871]

BYPASS \ OUTPUT

CABLE EXIT

RECTIFIER / DC

CABLE ENTRY

CONTROL CABLE

ENTRY / EXIT

.0

(0)

.0

(0)

3.3

[85]

14.8

[376]

2.1

[53]

19.1

[486]

24.6

[626]

15.2

[385]

4.1
[105]

SECTION A-A

BOTTOM VIEW

B

9.2
[233]

34.3

[872]

BYPASS \ OUTPUT

CABLE EXIT.

126.8

[3220]

1.6

[40]

Figure 18 Outline Drawing, 750kVA Liebert NXL 1+N multi-module or SMS with static bypass

29

Installation Drawings

Bracket Mounting Locations (M10 Hexserts)

Footprint Spacing

Lift Clearance

Shipping Split

Rectifier Section

(Part A)

Pillars Removed For Clarity

Bottom Cable Entry Panels

Front

Inverter Section

(Part B)

Front
Of Unit

Forklift Openings

Forklift Openings

Rectifier Section

(Part A)

Inverter Section

(Part B)

Notes:

1. All dimensions are in inches (mm).

2. Unit bottom is structurally adequate for
forklift handling.

Bottom Input (Part A) Bottom Output (Part B)

Front View

Right Side

Bottom View

Front View

2.4
[61]

27.7 [403]

27.7 [403] 27.7 [403]

27.7 [403]

1.7 [42]

1.7 [42]

4.8

[122]

Right Side

2.1 [53]

33.3 [845]

24.6

[625]

10.9

[276]

9.0

[229]

9.0

[229]

10.9

[276]

10.9

[276]

9.0

[229]

3.9

[100]

Typ

4.7

[120]

Typ

7.9

[200]

Typ

27.2 [691]

3.9
[99]

61.8 [1570]

61.8 [1570]

3.9

[100]

6.0 (152.4)

8.0 (203.2)

37.2

[945]

U40-7L-2000

Figure 19 Base detail drawing, 750kVA Liebert NXL, N+1 multi-module without static bypass

30

Installation Drawings

Figure 20 Base Drawing, 750kVA Liebert NXL 1+N multi-module or SMS with static bypass

6.0 (152.4)

REAR

A

33.3

2.2

10.7

27.7

27.7

[845]

[56]

[271]

4.8

[703]

1.7

[703]

RIGHT SIDE

[122]

[42]

(M10 HEXSERTS)

FRONT VIEW

BRACKET MOUNTING LOCATIONS

0.75

[19]

(PART B)

INVERTER SECTION

DETAIL A

FRONT

OF UNIT

77.3
[1963]

FORKLIFT OPENINGS

NOTES:

1. All dimensions are in inches (mm).

2. Unit bottom is structurally adequate

for forklift handling.

3.9

[99]

27.2

[691]

LIFT CLEARANCE

RIGHT SIDE

3.9
[100]

7.6
[193]

9.0
[229]

10.9

[276]

10.9

[276]

SHIPPING SPLIT

FRONT VIEW

9.0
[229]

37.2

[945]

PILLAR

6.0 (152.4)

SPACING

BOTTOM OUTPUT (PART B)

BOTTOM INPUT (PART A)

REAR

BOTTOM VIEW

7.9

TYP

[200]

PILLARS REMOVED FOR CLARITY

BOTTOM CABLE ENTRY PANELS

FOOTPRINT SPACING

(PART B)

INVERTER SECTION

4.8

[703]

1.7

[703]

[61]

[122]

[42]

27.7

27.7

2.4

(PART A)

RECTIFIER SECTION

61.8
[1570]

3.900

FORKLIFT OPENINGS

31

9.0

10.9

[229]

[276]

24.6

[625]

36.7

[931]

FOOT

SPACING

4.7

3.9

TYP

[120]

TYP

[100]

(PART A)

RECTIFIER SECTION

Notes:

1. All dimensions are in inches (mm).

2. Control wiring and power wiring must be run in separate conduits.

3. Aluminum and copper-clad aluminum cables are not recommended.

4. All wiring is to be in accordance with national and local electrical codes.

DC (-)

Input

Input

Ground

DC (+)
Input

Input

Phases

DO NOT DOUBLE STACK LUGS (TWO LUGS ON SAME
SIDE OF BUSBAR). THIS IS TO PREVENT THE CABLES
FROM COMING INTO CONTACT WITH OTHER BUSBARS.

LEFT FRONT

A

B

LEFT SIDE (INPUT)

DC Inputs

Input Phases

Input Ground

O

.56

(14

)

TYP

2.00
(51)

TYP

1.75

(44)

TYP

O

.56

(14)

TYP

2.00

(51)

TYP

1.75

(44)

TYP

O

.56

(14)

TYP

1.26

(32)

TYP

1.75

(44)

TYP

.0

(0)

23.5

( 598

)

32.4

(824)

36.2

(920)

40.0

(

1016)

51.3

(1303)

3.5

(90

)

3.5
(90)

76.8

(1950 )

CB1-3

CB1-3

Figure 21 Input/output terminal detail, 750kVA Liebert NXL without static bypass

Installation Drawings

32

Figure 22 Detail 750kVA Liebert NXL with static bypass (SMS/1+N)

NOTES:

1. ALL DIMENSIONS ARE IN inches (mm).

2. CONTROL WIRING AND POWER WIRING MUST BE RUN IN SEPARATE CONDUITS.

3. ALUMINUM AND COPPER-CLAD ALUMINUM CABLES ARE NOT RECOMMENDED.

4. ALL WIRING IS TO BE IN ACCORDANCE WITH NATIONALAND LOCAL ELECTRICAL CODES.

DO NOT DOUBLE STACK LUGS (TWO LUGS ON SAME
SIDE OF BUSBAR). THIS IS TO PREVENT THE CABLES
FROM COMING INTO CONTACT WITH OTHER BUSBARS.

LEFT FRONT (PART A)

LEFT SIDE (PART A)

DC INPUTS

INPUT PHASES

INPUT GROUND

DUAL LUG CONNECTION DETAIL

DC (-)

INPUT

INPUT

GROUND

DC (+)
INPUT

INPUT

PHASES

LUGS

BUSBAR

BOLT

A

B

C

DIA. .56

[14]

TYP

2.00
[51]

TYP

1.75
[44]

TYP

DIA. .56

[14]

TYP

2.00
[51]

TYP

1.75
[44]

TYP

DIA. .56

[14]

TYP

1.26
[32]

TYP

1.75
[44]

TYP

.0

(0)

23.5

( 598 )

32.4

( 824 )

36.2

( 920 )

40.0

( 1016 )

51.3

( 1303 )

3.5

[90]

3.5

[90]

76.8

( 1950 )

CB1-3

CB1-3

Installation Drawings

33

Installation Drawings

Figure 23 Input/output terminal detail, 750kVA Liebert NXL without static bypass (continued)

.56

5 Places

O

(14)
Typ
20 Places

NEUTRAL

1.75
(44 )
Typ

O

Typ 5 Places

1.75
(44)
Typ

76.8

(1950 )

53.2

(1352 )

39.4

(1002 )

32.0

( 813)

1.75

(44)
Typ

(Top
Entry)

C

B

A

Output

Phases

Neutral

Output

Ground

1.38 X .56 Slot

Each Busbar

OUTPUT PHASES

1.38 X .56 Slot
10 Places

1.75

(44)

(Bottom

Typ

Entry)

(Top
Entry)

.56 (14 )

(Bottom
Entry)

.0

(0)

RIGHT FRONT

NOTES:

1. All dimensions are in inches (mm)

2. Control wiring and power wiring
must be run in separate conduits.

3. Aluminum and copper-clad aluminum
cables are not recommended.

4. All wiring is to be in accordance
with national and local electrical codes.

RIGHT SIDE (OUTPUT)

CB1-3

CB1-3

DO NOT DOUBLE-STACK LUGS

1.75
(44 )
Typ

.56

O

(14)

Typ

1.57
(40)
Typ

OUTPUT GROUND

34

Installation Drawings

NOTES:

1. ALL DIMENSIONS ARE IN inches (mm).

2. CONTROL WIRING AND POWER WIRING MUST BE RUN IN SEPARATE CONDUITS.

3. ALUMINUM AND COPPER-CLAD ALUMINUM CABLES ARE NOT RECOMMENDED.

4. ALL WIRING IS TO BE INACCORDANCE WITH NATIONAL AND LOCAL ELECTRICAL CODES.

BREAKERS AND FRONT
POST REMOVED
FOR CLARITY

CBANCBA

OUTPUT

GROUND

(TOP ENTRY)

OUTPUT

GROUND

1.75
(44)

TYP

.56 DIA.

(14)

TYP

1.75
(44)

TYP

76.8
(1950)

30.4
(772)

33.9
(860)

.0
(0)

56.4
(1432)

BYPASS / OUTPUT NEUTRAL

1.49
(37.7)

TYP

BYPASS
NEUTRAL
BUS

OUTPUT
NEUTRAL
BUS

(BOTTOM

ENTRY)

RIGHT SIDE (PART B)

RIGHT FRONT (PART B)

BYPASS / OUTPUT PHASES

OUTPUT GROUND

1.38 X .56 SLOT
6 PLACES
EACH BUSBAR

1.75
(44)
TYP

OUTPUT
PHASES,
APPROX.

3.0" SPACING
BETWEEN
BUSBARS

BYPASS
PHASES,
APPROX.

3.0" SPACING
BETWEEN
BUSBARS

.56 DIA.

(14)
TYP

28 PLACES

.56 DIA.

(14)

TYP

20 PLACES

1.30
(33)
TYP

1.75
(44)
TYP

OUTPUT
NEUTRAL

BYPASS
NEUTRAL

DO NOT DOUBLE-STACK LUGS

CB1-3

CB1-3

Figure 24 Input/output terminal detail, 750kVA Liebert NXL with static bypass (SMS or 1+N) continued

35

Figure 25 Shipping split 750kVA Liebert NXL without static bypass

(+) DC Busbar

(-) DC Busbar

M10 Flat Washer

M10 Ribbed Washer (2x)

M10 Hex Head Bolt

Low-Voltage Wire Connections
Between Part A and Part B

Wires are coiled and tied in Part A.
Uncoil, route and connect wires in finish part as shown.
Use wire label as guide for "to" component, connection
ID and wire part number. Tie wires away from sharp
edges, busbar and electronic components.

02-806716-

02-806704­Phase A

02-806704­Phase B

02-806704­Phase C

02-806707-

Hardware
for Detail A
Included
in This Box

Loosen hardware to allow
busbar to move to join
to Part B Busbar.
Retighten and torque
to 27 N-m (240 in-lb)

Note:
See Page 2 of 2, drawing
# U40-7g-2001

Part A (Rectifier) - Wire Starting Point

531985GI

531988G2

531983G1

A

531985G2

531985G3

532061G1

Detail A

DC Power Connection Between Part A and Part B

Hardware Provided With Part B: 4 Bolts Total
Torque Connection To 27 N-m (240 In-lbs)

U40-7g-2000
Pg. 1, Rev. 01

Part B (Inverter) - Wire Finishing Point

02-806708-

Low Voltage Wire Connections Between Part B and Part A

Wires are coiled and tied in Part B.
Uncoil, route and connect wires in finish part as shown.
Use wire label as guide for "to" component, connection ID and wire part number.
Tie wires away from sharp edges, busbar and electronic components.

02-806710-

NOTE:
See Page 1 of 2, drawing
# U40-7G-2000

Part A (Rectifier) - Wire Finishing Point

532049G1

532065G1

532063G1

532065G1

U40-7G-2001
Rev. 1

Part B (Inverter) - Wire Starting Point

Installation Drawings

36

Figure 26 Shipping Split, 750kVA Liebert NXL with static bypass (SMS/1+N)

PART A - WIRE STARTING POINT PART B - WIRE FINISHING POINT

Hardware Provided With Part B.

(4) Bolts Total.

Torque Connection to 27 N-m (240 in-lb).

M10 FLAT WASHER

M10 RIBBED WASHER (x2)

M10 HEX HEAD BOLT

Low Voltage Wire Connections Between Parts A and B

Wires are coiled and tied in Part A.
Uncoil, route and connect wires in finish part as shown.
Use wire label as gu ide for “TO” component, connection ID and wire part number.
Tie wires away from sharp edges, busbar and electronic components.

DC Power Connection Between Parts A and B

(+) DC BUSBAR

LOOSEN HARDWARE TO ALLOW

BUSBAR TO MOVE TO JOIN TO

PART B BUSBAR.

RETIGHTEN AND TORQUE TO

27 N-m (240 in-lbs)

02-806704-

PHASE A

02-806704-

PHASE B

02-806704-

PHASE C

02-806707-

02-806705-

02-806716-

F42 & F43

(-) DC BUSBAR

531988G2

531985G1

531983G1

531985G2

531984G1

531985G3

531988G1

532061G1

532062G1

Detail A

DETAIL A

Installation Drawings

37

Figure 27 Shipping Split, 750kVA Liebert NXL with static bypass (SMS/1+N) continued

Low Voltage Wire Connections Between Parts B and A

Wires are coiled and tied in Part B.
Uncoil, route and connect wires in finish part as shown.
Use wire label as guide for “TO” component, connection ID and wire part number.
Tie wires away from sharp edges, busbar and electronic components.

PART A - WIRE FINISHING POINT. PART B - WIRE STARTING POINT.

02-806710-

02-806708-

Fig12A-ShippingSplit750kVANXLwStaticBypass-SMS1plusNcontd

532065G1

532049G1

532065G1

532063G1

Installation Drawings

38

Figure 28 Single-input wire cabinet

M6 hardware for Ground Plate
provided in shipped-loose bag
inside Wire Cabinet

Remove Side Panels From Left Side of Rectifier Cabinet

and Install on Left Side of Wire Cabinet

M10 Hardware
Provided in
Shipped-Loose
Bag Inside
Wire Cabinet

Kickplate is provided as a
shipped-loose item
inside the Wire Cabinet
on inverter-side the UPS

Cabinet-to-Cabinet
Connection Hardware

DETAIL A

538307

Reference of Rectifier
Corner Post
See Detail A

Remove upper and lower
internal panels before attaching
wire cabinet to UPS

Reference of
Wire Cabinet
Corner Post
See Detail A

Rectifier
Cabinet
Corner Posts

Wire Cabinet
Corner Posts

Rectifier ( Not All Components Shown)

Wire Cabinet

This hardware provided
on Rectifer Cabinet.
Reuse hardware
to mount ground plate

1 Ground Plate

Bolt
and
Washer

Bolt and Washer

Bolt and Washer

DETAIL B

B

COMPLETE ASSEMBLY

Installation Drawings

39

Figure 29 Control cable layout, UPS active analog load bus sync, 250-750kVA units

U40-CQ-1560
Rev. 1

SYSTEM #1 SYSTEM #2

UPS

TB27-7

ANALOG LBS BOX

TB27-8

TB27-9

INTER-MODULE

COMMUNICATIONS

02-806730-00

TB4-4

TB27-4

TB27-5

TB27-6

TB27-1

TB27-2

TB27-3

TB27-11

TB27-12

TB4-5

TB4-6

TB3-1

TB3-2

TB3-3

TB2-2

TB2-5

TB2-9

TB1-1

TB1-2

TB1-7

TB1-8

P3107-4

P3107-5

Bypass Volts Phase A

Bypass Volts Phase B

Bypass Volts Phase C

120 Volts AC

Ground

Return

Transferred To Bypass

Synch Phase C

Synch Phase B

Synch Phase A

V & I

BOARD

LBS

BOARD

TB1-1

TB1-2

P3105-3

P3105-4

Return

Synch To Master

Critical Bus Volts Phase A

Critical Bus Volts Phase B

Critical Bus Volts Phase C

CG #14A

CG #14B

F70

F69

F71

V-BYP-A

V-BYP-C

V-BYP-B

F73

F72

F74

V-OU T-A

V-OU T-C

V-OU T-B

TB27-8

TB27-7

TB27-9

TB0826-1

TB0826-5

TB0826-3

External
Interface
Board

LBS
Transformer
Box

CG #13

TB5-5

TB5-4

P3107-2

P3107-1

Common

V & I

BOARD

System Is On Bypass (N.C.)

ANALOG LBS BOX

UPS

TB27-7

TB27-8

TB27-9

INTER-MODULE

COMMUNICATIONS

02-806730-00

TB3-4

TB27-4

TB27-5

TB27-6

TB27-1

TB27-2

TB27-3

TB27-11

TB27-12

TB3-5

TB3-6

TB4-1

TB4-2

TB4-3

TB3-1

TB3-5

TB3-10

TB2-1

TB2-2

TB2-7

TB2-8

P3107-4

P3107-5

Synch Phase C

Synch Phase B

Synch Phase A

Critical Bus Volts Phase B

Critical Bus Volts Phase A

Critical Bus Volts Phase C

Bypass Volts Phase A

Bypass Volts Phase B

Bypass Volts Phase C

120 Volts AC

Ground

Transferred To Bypass

Return

V & I

BOARD

LBS

BOARD

TB2-1

TB2-2

P3105-3

P3105-4

Synch To Master

Return

CG #14C

CG #14D

LBS
Transformer
Box

F70

F69

F71

V-BYP-A

V-BYP-C

V-BYP-B

F73

F72

F74

V-OU T-A

V-OU T-C

V-OU T-B

TB27-8

TB27-7

TB27-9

TB0826-1

TB0826-5

TB0826-3

External

Interface

Board

CG #13

TB5-2

TB5-1

P3107-2

P3107-1

System Is On Bypass (N.C.)

Common

V & I

BOARD

NOTES:

1. All control wiring (by others) must be run separate
from power wiring. Control wiring runs should not be
combined in the same conduit.

2. All wiring must be in accordance with national and local electrical codes.

3. UPS can be wired either as System #1 or System #2.

ANALOG LBS BOX

TB27-7

TB27-8

TB27-9

INTER-MODULE

COMMUNIC ATIONS

02-806730-00

TB3-4

TB27-4

TB27-5

TB27-6

TB27-1

TB27-2

TB27-3

TB27-11

TB27-12

TB3-5

TB3-6

TB4-1

TB4-2

TB4-3

TB3-1

TB3-5

TB3-10

TB2-1

TB2-2

TB5-2

TB5-1

P3107-2

P3107-1

Synch Phase C

Synch Phase B

Synch Phase A

Critical Bus Volts Phase B

Critical Bus Volts P hase A

Critical Bus Volts Phase C

Bypass Volts Phase A

Bypass Volts Phase B

Bypass Volts Phase C

120 Volts AC

Ground

V & I

BOARD

LBS

BOARD

TB2-1

TB2-2

P3105-3

P3105-4

Synch To Master

Return

CG #14C

CG #14D

LBS
Transformer
Box

F70

F69

F71

V-BYP-A

V-BYP-C

V-BYP-B

F73

F72

F74

V-OU T-A

V-OU T-C

V-OU T-B

TB27-8

TB27-7

TB27-9

TB0826-1

TB0826-5

TB0826-3

External

Interface

Board

CG #13

V & I

BOARD

Common

System Is On Bypass (N. C.)

UPS

TB27-7

ANALOG LBS BOX

TB27-8

TB27-9

INTER-MODULE

COMMUNIC ATIONS

02-806730-00

TB4-4

TB27-4

TB27-5

TB27-6

TB27-1

TB27-2

TB27-3

TB27-11

TB27-12

TB4-5

TB4-6

TB3-1

TB3-2

TB3-3

TB2-2

TB2-5

TB2-9

TB1-1

TB1-2

TB5-5

TB5-4

P3107-2

P3107-1

Bypass Volts Phase A

Bypass Volts Phase B

Bypass Volts Phase C

120 VoltsAC

Ground

Common

Synch Phase C

Synch Phase B

Synch Phase A

V & I

BOARD

LBS

BOARD

TB1-1

TB1-2

P3105-3

P3105-4

Return

Synch To Master

Critical Bus Volts P hase A

Critical Bus Volts P hase B

Critical Bus Volts P hase C

CG #14A

CG #14B

F70

F69

F71

V-BYP-A

V-BYP-C

V-BYP-B

F73

F72

F74

V-OU T-A

V-OU T-C

V-OU T-B

TB27-8

TB27-7

TB27-9

TB0826-1

TB0826-5

TB0826-3

External
Interface
Board

LBS
Transformer
Box

CG #13

System Is On Bypass (N. C.)

V & I

BOARD

SYSTEM #1 SYSTEM #2

UPS

NOTES:

1. All control wiring (by others) must be run separate
from power wiring. Control wiring runs should not be
combined in the same conduit.

2. All wiring must be in accordance with national and local electrical codes.

3. UPS can be wired either as System #1 or System #2.

U40-CQ-1540
Rev. 2

Installation Drawings

Figure 30 Control cable layout, UPS passive analog load bus sync, 250-750kVA units

40

Figure 31 Control cable layout, UPS analog load bus sync, ELBS, 250-750kVA units

U40-CQ-1562
Rev. 0

NOTES:

1. All control wiring (by others) must be run separate
from power wiring. Control wiring runs should not
be combined in the same conduit.

2. All wiring must be in accordance with national
and local electrical codes.

UPS

TB27-7

ANALOG LBS BOX

TB27-8

TB27-9

INTER-MODULE

COMMUNICATIONS

02-806730-00

TB4-4

TB27-4

TB27-5

TB27-6

TB27-1

TB27-2

TB27-3

TB27-11

TB27-12

TB4-5

TB4-6

TB3-4

TB3-5

TB3-6

TB2-2

TB2-5

TB2-9

TB1-1

TB1-2

V & I

BOARD

LBS

BOARD

TB1-1

TB1-2

P3105-3

P3105-4

Return

SynchTo Master

Bypass Volts Phase A

Bypass Volts Phase B

Bypass Volts Phase C

120 Volts AC

Ground

Synch Phase C

Synch Phase B

Synch Phase A

Critical Bus Volts Phase A

Critical Bus Volts Phase B

Critical Bus Volts Phase C

CG #30A

CG #30B

F70

F69

F71

V-BYP-A

V-BYP-C

V-BYP-B

F73

F72

F74

V-O UT-A

V-O UT-C

V-O UT-B

TB27-8

TB27-7

TB27-9

TB0826-1

TB0826-5

TB0826-3

EXTERNAL
INTERFACE
BOARD

LBS
Transformer
Box

CG #13

TB5-5

TB5-4

P3107-2

P3107-1

Common

V & I

BOARD

System is on Bypass (N.C.)

Installation Drawings

41

5.0 SPECIFICATIONS

Table 10 Liebert NXL UPS specifications

Model Size 500kVA 750kVA

Input Parameters

Input Voltage to Rectifier, VAC 480V 3-phase, 3-wire

Input Voltage to Bypass, VAC 480V 3-phase, 3-wire or 4-wire

Input Voltage Range, VAC +10% to -15; -15% to -20%*; -20% to -30%**; <-30%***

Input Frequency, Hz 60

Permissible Input Frequency Range, Hz 55 to 65

Reflected Input THDi, Nominal Voltage, Full Load, % <5% with 12-Pulse & Passive Filter

Input THDi at Nominal Voltage at Full Load, %

Power Walk-In, sec 1 to 30 (selectable) in 1 sec. Increment

Neutral Current up to 1.7 times full-phase current

Battery & DC Parameters

Nominal Battery Bus, VDC 480V

Battery

Float Voltage, VDC 540V

Minimum End of Discharge Voltage, VDC 384V (for VRLA / Flooded Lead Acid)

DC Ripple Voltage in Float & Const V Ch. Mode, % <1 (RMS value) < 3,4% Vpp

Temperature Compensated Battery Charging Optional (with temperature probe)

Output Parameters

Output Power, kW 450 675

Output Voltage, VAC 480V 3-ph, 4-w

Output Voltage Regulation, % < 1% (3-phase RMS average)

Output Voltage Regulation (100% Unb. Load) < 2% (3-phase RMS average)

Output Frequency, Hz 60

Output Frequency Regulation, % ± 0.1

Output THDu Linear Load at Nominal Voltage, % <2%

Including a 100kVA Non Linear Load per EN 62040-3, %

Capacity to Handle High Crest Factor Load 3:1

Step Load Transient Recovery (linear loads), % Within 5% peak-to-peak in one line cycle.

Output THDu at Nominal Voltage

Capacity to handle Step Load, % 0-100 or 100-0

Unbalance Loads Current Capacity 100% of nominal phase current

Capacity to Handle Leading PF Load

Voltage Displacement, ° el 120° ±1° el (with 100% unbalanced load)

Battery Type VRLA (Valve Regulated Lead Acid) or FLA (Flooded Lead Acid)

Inverter Type IGBT-based Sine-Sine PWM Controlled

0.9 lag to Nom Subject to Max. kW rating

at 0.95 Lead Subject to Max. kW rating

at 0.9 Lead

<5% with 12-Pulse & Passive Filter; <10% with 12-Pulse Without

Passive Filter

2.5% (max)

Subject to 12.5% kW derate or same Rating and 10°C Temp.

Derate

Compliance to FCC Class-A Standard

105% for 85 minutes

Overload Conditions, % FL

* The UPS will operate at full load, but the battery charge will either be reduced or off (depending on input current).
** The UPS will operate at full load, but UPS may source share with the batteries (depending on input current).
*** UPS will be in Battery mode

110% for 60 minutes
125% for 10 minutes

150% for 1 minute

480V 3-phase, 3-wire
575V 3-phase, 3-wire
600V 3-phase, 3-wire

480V 3-phase, 3-wire or 4-wire
575V 3-phase, 3-wire or 4-wire

600V3-phase, 3-wire or 4-wire

480V 3-ph, 4-w
575V 3-ph, 4-w
600V 3-ph, 4-w

Specifications

42

Specifications

Table 10 Liebert NXL UPS specifications (continued)

Model Size 500kVA 750kVA

Physical Parameters and Standards, in (mm)

Width, With Static Bypass 111.6 (2835) 140.5 (3568)

Width, without Static Bypass N/A 125 (3175)

Depth 39.4 (1000) 39.4 (1000)

Height 76.8 (1950) 76.8 (1950)

Weight, Unpackaged, lb (kg) approx., with Static Bypass

(SMS)

9450 (4286) 13,200 (6000)

Weight, Unpackaged, lb (kg) approx., with Static Bypass (1+N) 9550 (4332) 13,350 (6055)

Weight, Unpackaged, lb (kg) approx., without Static Bypass

(N+1)

Max heat Dissipation, Full Load, BTU/hr 141,658

Cooling Air CFM 8113 15,760

9250 (4196) 12,500 (5670)

480V: 213,587

575V: 215,790
600V: 200,173

Color Black (ZP-7021)

Front Door Opening (for serviceability) More than 180°

Degree of Protection for UPS Enclosure IP 20 (with and without front door open)

Minimum Clearance, Top, in (mm) 24 (610)

Minimum Clearance, Back, in (mm) 0

Minimum Clearance, Sides, in (mm) 0

Location of Cable Entrance Top or Bottom

UL 1778, 4th Ed.

CSA 22.2 107.3

FCC Part 15, Class A

IEC62040-2, Level 4, Criteria A

Standards and Conformities

EN61000-4-3, Level 3, Criteria A
EN61000-4-6, Level 4, Criteria A

EN61000-2-2, Criteria A

EN61000-4-4, Level 4, Criteria A

ANSI C62.41, Category A3 &B3

ISTA Procedure 1H

WEEE

Environmental Parameters

Storage Temperature Range, °F (°C) -13 to 158 (-25 to 70)

Operating Temperature Range, °F (°C) 32 to 104 (0 to 40) (UPS)

Relative Humidity

Maximum Altitude Above MSL, ft (m)

Width dimensions are with side panels attached. Subtract 1.4" (35mm) for dimensions without side panels.
Depth dimensions include the front door and rear panel.

Non-Condensing (Operating and Non-Operating)

4920 (1500) (as per IEC 62040/3) - 1% Max kW derate / 328

rise between 4921-9842 (100m rise between 1500-3000m)

95% or less

43

Specifications

Table 11 Current ratings—rectifier input

UPS Rating Voltage, VAC

Rectifier

Type

500 450 480 480 480 12P + Filter 650 812 900 1000

750 675 480 480 480 12P + Filter 975 1219 1600 1600

750 675 575 575 575 12P + Filter 815 1018 1200 1600

750 675 600 600 600 12P + Filter 759 949 1000 2000

Nominal

Current

Maximum

Current

External

100% Breaker

Trip, Amps

External

80% Breaker

Trip, AmpskVA kW Input Bypass Output

Table 12 Current ratings—bypass input

UPS Rating Voltage, VAC

500 450 480 480 480 12P + Filter 601 752 800

750 675 480 480 480 12P + Filter 902 1128 1200

750 675 575 575 575 12P + Filter 753 941 1000

750 675 600 600 600 12P + Filter 722 902 1000

Rectifier

Type

Nominal

Current

10 Minute

Overload

External Breaker

Trip, AmpskVA kW Input Bypass Output

Table 13 Current ratings—output

UPS Rating Voltage, VAC

500 450 480 480 480 12P + Filter 601 752 800

750 675 480 480 480 12P + Filter 902 1128 1200

750 675 575 575 575 12P + Filter 753 941 1000

750 675 600 600 600 12P + Filter 722 902 1000

Rectifier

Type

Nominal

Current

10 Minute

Overload

External Breaker

Trip, AmpskVA kW Input Bypass Output

Table 14 Current ratings—battery

UPS Rating Voltage, VAC

500 450 480 480 480 12P + Filter 480 1241 1600

750 675 480 480 480 12P + Filter 480 1845 2000

750 675 575 575 575 12P + Filter 480 1851 2000

750 675 600 600 600 12P + Filter 480 1845 2000

Rectifier

Type Nominal VDC

Max Battery

Current at EOD

External Breaker

Trip, AmpskVA kW Input Bypass Output

Notes on Tables

1. Nominal input current (considered continuous) is based on full-rated output load. Maximum
current includes nominal input current and maximum battery recharge current (considered
noncontinuous). Continuous and noncontinuous current are defined in NEC 100. Maximum input
current is controlled by the current limit setting which is adjustable. Values shown are for
maximum setting of 125%. Standard factory setting is 125%. If a smaller input feed breaker is
used, the input current limit must be adjusted accordingly.

2. Recommended bypass external overcurrent protection is based on 125% overload capacity for 10
minutes.

3. All recommended external overcurrent protections are based on 80% rated breakers.

4. Nominal battery voltage is shown at 2.0 volts / cell.

44

Specifications

Table 15 Recommended conduit and cable sizes

Rectifier Input

UPS Rating Voltage (VAC)

Rectifier Type

500 450 480 480 480 12P+Filter

750 675 480 480 480 12P+Filter

750 675 575 575 575 12P+Filter

750 675 600 600 600 12P+Filter

Bypass Input

UPS Rating Voltage (VAC)

Rectifier Type

500 450 480 480 480 12P+Filter

750 675 480 480 480 12P+Filter

750 675 575 575 575 12P+Filter

750 675 600 600 600 12P+Filter

Output

UPS Rating Voltage (VAC)

Rectifier Type

500 450 480 480 480 12P+Filter

750 675 480 480 480 12P+Filter

750 675 575 575 575 12P+Filter

750 675 600 600 600 12P+Filter

Battery

UPS Rating Voltage (VAC)

Rectifier Type

500 450 480 480 480 12P+Filter

750 675 480 480 480 12P+Filter

750 675 575 575 575 12P+Filter

750 675 600 600 600 12P+Filter

Bonding

UPS Rating Voltage (VAC)

Main Bonding Jumper/Grounding

Rectifier Type

500 450 480 480 480 12P+Filter (1) #4/0AWG/ (1) #4/0AWG

750 675 480 480 480 12P+Filter (1) 250kcmil/ (1) 250kcmil

750 675 575 575 575 12P+Filter (1) 250kcmil/ (1) 250kcmil

750 675 600 600 600 12P+Filter (1) 250kcmil/ (1) 250kcmil

1. Recommended cable sizes are 75°C (THW) wire at 30°C ambient.

2. For continuos operations not at 30°C, recommend that the site planner choose the appropriate cable type based on the particular
installation requirements.

Nominal Selection

(#) Conduit Size, Ph, G

(3) 3.5C, 3-500kcmil,

#2/0AWG

(4) 3.5C, 3-600kcmil,

#4/0AWG

(3) 3.5C, 3-600kcmil,

#4/0AWG

(3) 3.5C, 3-600kcmil,

#4/0AWG

Nominal Selection

(#) Conduit Size, Ph, N, G

(3) 4C, 3-500kcmil,

2-250kcmil, #1/0AWG

(4) 4C, 3-500kcmil,

2-350kcmil, #4/0AWG

(4) 4C, 3-500kcmil,

2-250kcmil, #2/0AWG

(4) 4C, 3-500kcmil,

2-250kcmil, #2/0AWG

Nominal Selection

(#) Conduit Size, Ph, N, G

(3) 4C, 3-500kcmil,

2-250kcmil, #1/0AWG

(4) 4C, 3-500kcmil,

2-350kcmil, #4/0AWG

(4) 4C, 3-500kcmil,

2-250kcmil, #2/0AWG

(4) 4C, 3-500kcmil,

2-250kcmil, #2/0AWG

Nominal Selection

(#) Conduit Size, Ph, G

(4) 3C, 2-600kcmil,

#4/0AWG

(5) 3C, 2-600kcmil,

250kcmil

(5) 3C, 2-600kcmil,

250kcmil

(5) 3C, 2-600kcmil,

250kcmil

Electrode Conductor kVA kW Input Bypass Output

Alternate Selection

(#) Conduit Size, Ph, G kVA kW Input Bypass Output

(4) 3C, 3-250kcmil,

#2/0AWG

(5) 3.5C, 3-500kcmil,

#4/0AWG

(4) 3C, 3-350kcmil,

#4/0AWG

(4) 3C, 3-350kcmil,

#4/0AWG

Alternate Selection

(#) Conduit Size, Ph, N, G kVA kW Input Bypass Output

(4) 3C, 3-250kcmil,

2-#4/0AWG, #1/0AWG

(5) 3.5C, 3-350kcmil,

2-#4/0AWG, #4/0AWG

(5) 3C, 3-250kcmil,

2-#4/0AWG, #2/0AWG

(5) 3C, 3-250kcmil,

2-#4/0AWG, #2/0AWG

Alternate Selection

(#) Conduit Size, Ph, N, G kVA kW Input Bypass Output

(4) 3C, 3-250kcmil,

2-#4/0AWG, #1/0AWG

(5) 3.5C, 3-350kcmil,

2-#4/0AWG, #4/0AWG

(5) 3C, 3-250kcmil,

2-#4/0AWG, #2/0AWG

(5) 3C, 3-250kcmil,

2-#4/0AWG, #2/0AWG

Alternate Selection

(#) Conduit Size, Ph, G kVA kW Input Bypass Output

(5) 3C, 2-500kcmil,

#4/0AWG

(6) 3C, 2-500kcmil,

250kcmil

(6) 3C, 2-500kcmil,

250kcmil

(6) 3C, 2-500kcmil,

250kcmil

45

Table 16 Recommended lug sizes

T&B Series 54000

Cable Size

One Hole

#8 AWG 54930BE 54850BE

#6 AWG 54905BE 256-30695-868

#4 AWG 54906BE 256-30695-733

#2-3 AWG 54942BE 54811BE

#1 AWG 54947BE 54857BE

#1/0 AWG 54950BE 256-30695-593

#2/0 AWG 54951BE 54862BE

#3/0 AWG 54965BE 54864BE

#4/0 AWG 54970BE 54866BE

250kcmil 54913BE 54868BE

300kcmil 54914BE 54870BE

350kcmil 54915BE 54872BE

400kcmil 54916BE 54874BE

500kcmil 54918BE 54876BE

600kcmil 54920BE 54878BE

750kcmil 54922BE 54880BE

Use the T&B crimping tools recommended for these types of lugs.

T&B Series 54000

Two Hole

Specifications

Table 17 Recommended torque values

Grade 5 Steel: Unified Thread System Torque lbf.*in. Class 8.8 Steel: Metric Thread System Torque N*m

Fastener Finish ⇒ Plain Steel Zinc Plating Fastener Finish ⇒ Plain Steel Zinc Plating

Size

1/4

5/16

3/8

7/16

1/2

9/16

Threads/

Inch, T

pi

No Washer/

Flat Washer

20 101 91

28 116 104 0.5 6.9 6.2

18 209 188

24 231 208 0.75 11 10

16 370 333

24 420 378 1 27 24

14 593 534

20 662 596 1.25 53 47

13 904 814

20 1,020 918 1.25 95 86

12 1,305 1,175

18 1,456 1,310 1.5 151 136

No Washer/

Flat Washer Size

M5

M6

M8

M10

M12

M14

Thread

Pitch, T

p

No Washer/

Flat Washer

No Washer/

Flat Washer

0.8 6.1 5.5

110 9

1.25 25 23

1.5 50 45

1.75 87 78

2139125

46

NOTES

Specifications

47

Specifications

48

Ensuring The High Availability
Of Mission-Critical Data And Applications.

Emerson Network Power, the global leader in enabling business-critical
continuity, ensures network resiliency and adaptability through
a family of technologies—including Liebert power and cooling
technologies—that protect and support business-critical systems.
Liebert solutions employ an adaptive architecture that responds
to changes in criticality, density and capacity. Enterprises benefit
from greater IT system availability, operational flexibility and
reduced capital equipment and operating costs.

While every precaution has been taken to ensure the accuracy
and completeness of this literature, Liebert Corporation assumes no
responsibility and disclaims all liability for damages resulting from use of
this information or for any errors or omissions.
© 2009 Liebert Corporation
All rights reserved throughout the world. Specifications subject to change
without notice.
® Liebert is a registered trademark of Liebert Corporation.
All names referred to are trademarks
or registered trademarks of their respective owners.

SL-25434_REV4_06-10

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