SMA SB 3000TL-US Installation
CA
US
PV Inverter
SUNNY BOY
3000TL-US / 3800TL-US / 4000TL-US /
5000TL-US / 6000TL-US / 7000TL-US / 7700TL-US
Installation Manual
SB3-5TLUS22-IA-en-16 | Version 1.6
SMA America, LLC
Copyright © 2014 SMA America,LLC. All rights reserved.
No part of this document may be reproduced, stored in a retrieval system, or transmitted, in any form
or by any means, electronic, mechanical, photographic, magnetic or otherwise, without the prior
written permission of SMA America,LLC.
Neither SMA America,LLC nor SMA Solar Technology Canada Inc. makes representations, express
or implied, with respect to this documentation or any of the equipment and/or software it may
describe, including (with no limitation) any implied warranties of utility, merchantability, or fitness for
any particular purpose. All such warranties are expressly disclaimed. Neither SMA America,LLC nor
its distributors or dealers nor SMA Solar Technology Canada Inc. nor its distributors or dealers shall
be liable for any indirect, incidental, or consequential damages under any circumstances.
(The exclusion of implied warranties may not apply in all cases under some statutes, and thus the
above exclusion may not apply.)
Specifications are subject to change without notice. Every attempt has been made to make this
document complete, accurate and up-to-date. Readers are cautioned, however, that
SMAAmerica,LLC and SMA Solar Technology Canada Inc. reserve the right to make changes
without notice and shall not be responsible for any damages, including indirect, incidental or
consequential damages, caused by reliance on the material presented, including, but not limited to,
omissions, typographical errors, arithmetical errors or listing errors in the content material.
All trademarks are recognized even if these are not marked separately. Missing designations do not
mean that a product or brand is not a registered trademark.
SMA America, LLC
3801 N. Havana Street
Denver, CO 80239 U.S.A.
SMA Solar Technology Canada Inc.
2425 Matheson Blvd. E
8th Floor
Mississauga, ON L4W 5K5
Canada
Installation Manual SB3-5TLUS22-IA-en-16 3
IMPORTANT SAFETY INSTRUCTIONS SMA America, LLC
IMPORTANT SAFETY INSTRUCTIONS
SAVE THESE INSTRUCTIONS
This manual contains important instructions for the following products:
• Sunny Boy 3000TL-US (SB 3000TL-US-22)
• Sunny Boy 3800TL-US (SB 3800TL-US-22)
• Sunny Boy 4000TL-US (SB 4000TL-US-22)
• Sunny Boy 5000TL-US (SB 5000TL-US-22)
• Sunny Boy 6000TL-US (SB 6000TL-US-22)
• Sunny Boy 7000TL-US (SB 7000TL-US-22)
• Sunny Boy 7700TL-US (SB 7700TL-US-22)
This manual must be followed during installation and maintenance.
The product is designed and tested according to international safety requirements, but as with all
electrical and electronic equipment, certain precautions must be observed when installing and/or
operating the product. To reduce the risk of personal injury and to ensure the safe installation and
operation of the product, you must carefully read and follow all instructions, cautions and warnings
in this manual.
Warnings in this Document
A warning describes a hazard to equipment or personnel. It calls attention to a procedure or practice,
which, if not correctly performed or adhered to, could result in damage to or destruction of part or all
of the SMA equipment and/or other equipment connected to the SMA equipment or personal injury.
Symbol Description
DANGER indicates a hazardous situation which, if not avoided, will result in
death or serious injury.
WARNING indicates a hazardous situation which, if not avoided, could result
in death or serious injury.
CAUTION indicates a hazardous situation which, if not avoided, could result
in minor or moderate injury.
NOTICE is used to address practices not related to personal injury.
4 SB3-5TLUS22-IA-en-16 Installation Manual
SMA America, LLC Warnings on this Product
Warnings on this Product
The following symbols are used as product markings with the following meanings.
Symbol Description
Warning regarding dangerous voltage
The product works with high voltages. All work on the product must only be
performed as described in the documentation of the product.
Beware of hot surface
The product can become hot during operation. Do not touch the product during
operation.
Electric arc hazards
The product has large electrical potential differences between its conductors. Arc
flashes can occur through air when high-voltage current flows. Do not work on the
product during operation.
Risk of fire
Improper installation of the product may cause a fire.
Observe the operating instructions
Read the documentation of the product before working on it. Follow all safety
precautions and instructions as described in the documentation.
Installation Manual SB3-5TLUS22-IA-en-16 5
General Warnings SMA America, LLC
General Warnings
General Warnings
Al l el ect ric al ins tal lat ions m ust be m ade in acc ord anc e wi th the local and NationalElectrical Code
ANSI/NFPA 70 or the Canadian Electrical Code® CSAC22.1. This document does not and is not
intended to replace any local, state, provincial, federal or national laws, regulation or codes
applicable to the installation and use of the product, including without limitation applicable
electrical safety codes. All installations must conform with the laws, regulations, codes and
standards applicable in the jurisdiction of installation. SMA assumes no responsibility for the
compliance or non-compliance with such laws or codes in connection with the installation of the
product.
The product contains no user-serviceable parts.
For all repair and maintenance, always return the unit to an authorized SMA Service Center.
Before installing or using the product, read all of the instructions, cautions, and warnings in this
manual.
Before connecting the product to the electrical utility grid, contact the local utility company. This
connection must be made only by qualified personnel.
Wiring of the product must be made by qualified personnel only.
®
6 SB3-5TLUS22-IA-en-16 Installation Manual
SMA America, LLC Table of Contents
Table of Contents
1 Information on this Document. . . . . . . . . . . . . . . . . . . . . . . . . . 10
2 Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
2.1 Intended Use . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
2.2 Skills of Qualified Persons . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
2.3 Safety Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
3 Scope of Delivery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
4 Product Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
4.1 Sunny Boy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
4.2 DC Disconnect. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
4.3 Type Labels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
4.3.1 Sunny Boy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
4.3.2 DC Disconnect . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
4.3.3 Symbols on the Type Labels. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
4.4 Display. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
4.5 Communication Interface. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
4.6 Secure Power Supply (SPS). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
4.7 Fan Retrofit Kit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
4.8 Arc-Fault Circuit Interrupter (AFCI). . . . . . . . . . . . . . . . . . . . . . . . . . . 24
4.9 SD Card Slot . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
4.10 Varistors. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
4.11 SMA OptiTrac Global Peak . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
5 Mounting. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
5.1 Selecting the Mounting Location . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
5.2 Mounting the Wall Mounting Bracket. . . . . . . . . . . . . . . . . . . . . . . . 28
5.3 Mounting the Inverter and DC Disconnect. . . . . . . . . . . . . . . . . . . . . 30
5.4 Attaching the Anti-Theft Device . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
6 Electrical Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
6.1 Safety during Electrical Connection. . . . . . . . . . . . . . . . . . . . . . . . . . 33
Installation Manual SB3-5TLUS22-IA-en-16 7
Table of Contents SMA America, LLC
6.2 Overview of the Connection Area. . . . . . . . . . . . . . . . . . . . . . . . . . . 34
6.2.1 Connection Area of the Inverter. . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
6.2.2 Connection Area of the DC Disconnect. . . . . . . . . . . . . . . . . . . . . . 35
6.3 AC Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
6.3.1 Conditions for the AC Connection . . . . . . . . . . . . . . . . . . . . . . . . . . 36
6.3.2 Connecting the Inverter to the Utility Grid . . . . . . . . . . . . . . . . . . . . 37
6.4 DC Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
6.4.1 Safety during DC Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
6.4.2 Conditions for the DC Connection . . . . . . . . . . . . . . . . . . . . . . . . . . 39
6.4.3 Connecting the PV Array . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
6.5 Connecting the Secure Power Supply Module . . . . . . . . . . . . . . . . . 44
7 Commissioning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
7.1 Making Settings via the Rotary Switches. . . . . . . . . . . . . . . . . . . . . . 47
7.1.1 Overview of the Rotary Switches . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
7.1.2 Changing the Country Data Set and the Display Language . . . . . . 49
7.1.3 Changing the Display Language . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
7.2 Commissioning the Inverter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
8 Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
8.1 Changing the Country Data Set Using a Communication Product . . 52
8.2 Activating and Setting SMA OptiTrac Global Peak . . . . . . . . . . . . . 52
9 Display and LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
9.1 Switching On the Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
9.2 Calling Up Messages of the Start Phase . . . . . . . . . . . . . . . . . . . . . . 53
9.3 LED Signals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54
10 Disconnecting the Inverter from Voltage Sources . . . . . . . . . . 55
10.1 Disconnecting the DC Disconnect from Voltage Sources. . . . . . . . . . 57
11 Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59
11.1 Event Messages. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59
11.2 Error Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60
11.3 Cleaning the Inverter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71
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SMA America, LLC Table of Contents
11.4 Cleaning the Fan . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71
11.4.1 Sunny Boy 3000/3800/4000/5000/6000TL-US . . . . . . . . . . . . 71
11.4.2 Sunny Boy 7000/7700TL-US . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73
11.5 Checking the PV System for Ground Faults . . . . . . . . . . . . . . . . . . . . 74
11.6 Replacing DC Varistors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 76
11.7 The Message "Electr. arc detected" is displayed. . . . . . . . . . . . . . . . 78
12 Decommissioning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80
12.1 Disassembling the Inverter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80
12.2 Packing the Inverter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81
12.3 Disposing of the Inverter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81
13 Technical Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82
13.1 DC/AC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82
13.1.1 Sunny Boy 3000TL-US. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82
13.1.2 Sunny Boy 3800TL-US . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 83
13.1.3 Sunny Boy 4000TL-US. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 84
13.1.4 Sunny Boy 5000TL-US. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85
13.1.5 Sunny Boy 6000TL-US. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 86
13.1.6 Sunny Boy 7000TL-US . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87
13.1.7 Sunny Boy 7700TL-US . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88
13.2 Protective Devices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 89
13.3 General Data. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90
13.4 DC Disconnect. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 91
13.5 Climatic Conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 91
13.6 Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 91
13.7 Torques . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 92
13.8 Data Storage Capacity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 92
14 Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 93
15 Compliance Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 94
16 Contact . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 95
Installation Manual SB3-5TLUS22-IA-en-16 9
1 Information on this Document SMA America, LLC
1 Information on this Document
Validity
This document is valid for the following device types as of firmware version HP V02.05.00.R,
KP V02.50.55.R:
• Sunny Boy 3000TL-US (SB 3000TL-US-22)
• Sunny Boy 3800TL-US (SB 3800TL-US-22)
• Sunny Boy 4000TL-US (SB 4000TL-US-22)
• Sunny Boy 5000TL-US (SB 5000TL-US-22)
• Sunny Boy 6000TL-US (SB 6000TL-US-22)
• Sunny Boy 7000TL-US (SB 7000TL-US-22)
• Sunny Boy 7700TL-US (SB 7700TL-US-22)
Target Group
Th is d ocu men t is fo r qu ali fie d pe rso ns. On ly p ers ons with t he a ppropriate skills are allowed to perform
the tasks described in this document (see Section2.2 "Skills of Qualified Persons", page12).
Additional Information
Links to additional information can be found at www.SMA-Solar.com.
Document title Document type
Capacitive Leakage Currents Technical information
Shade Management Technical information
Module Technology Technical information
Symbols
Symbol Explanation
Indicates information that is important for a specific topic or
objective, but is not safety-relevant.
☐ Indicates a requirement for meeting a specific goal.
☑ Desired result
✖ A problem that could occur
10 SB3-5TLUS22-IA-en-16 Installation Manual
SMA America, LLC 1 Information on this Document
Nomenclature
Complete designation Designation in this document
SMA America Production, LLC SMA
SMA Solar Technology Canada Inc. SMA
Sunny Boy Inverter, product
Installation Manual SB3-5TLUS22-IA-en-16 11
2 Safety SMA America, LLC
2 Safety
2.1 Intended Use
The Sunny Boy is a transformerless PV inverter which converts the direct current of a PV array into
grid-compliant alternating current and feeds it into the utility grid.
The inverter can be installed in the following grid configurations:
• 208Y/120 VAC Wye
• 120/240 VAC Split phase
The inverter is transformerless and has no galvanic isolation. Therefore, the inverter may only be
operated with ungrounded PV arrays. Furthermore, the PV array must be installed in accordance with
the National Electrical Code
locally valid regulations for ungrounded PV arrays. Additionally, the PV array (PV modules and
cabling) must have protective insulation and the PV modules used must be suitable for use with this
inverter. PV modules with a high capacity to ground may only be used if their coupling capacity does
not exceed 1,400 nF (for information on how to calculate the coupling capacity, see Technical
Information "Capacitive Leakage Currents" at www.SMA-Solar.com).
All components must remain within their permitted operating ranges at all times.
The inverter is suitable for indoor and outdoor use.
• Do not mount the inverter on flammable construction materials.
• Do not mount the inverter in areas where highly flammable materials are stored.
• Do not mount the inverter in areas having a potentially explosive atmosphere.
Only use this product in accordance with the enclosed documentation and with the local standards
and directives. Any other use may cause injury to persons or property damage. For safety reasons,
it is forbidden to modify the product or install components that are not explicitly recommended for this
product or distributed by SMA.
The enclosed documentation is an integral part of this product.
• Read and adhere to the documentation.
• Keep the documentation in a convenient place for future reference.
®
, Article 690.35 "Ungrounded Photovoltaic Power Systems" and the
2.2 Skills of Qualified Persons
The tasks described in this document may only be performed by qualified persons. The qualified
person must have the following skills:
• Knowledge of how an inverter works and is operated
• Training in how to deal with the dangers and risks associated with installing and using electrical
devices and plants
• Training in the installation and commissioning of electrical devices and plants
• Knowledge of all applicable standards and directives
• Knowledge of and adherence to this document and all safety precautions
12 SB3-5TLUS22-IA-en-16 Installation Manual
SMA America, LLC 2 Safety
2.3 Safety Precautions
Danger to life from electric shock due to high voltages in the inverter
High voltages that can cause fatal electric shocks are present in the live components of the inverter.
• All work on the inverter may only be carried out by qualified persons.
• Prior to performing any work on the inverter, disconnect the inverter on the AC and DC sides
(see Section10 "Disconnecting the Inverter from Voltage Sources", page55).
• Only operate the inverter with the enclosure lid closed.
• Do not open the upper enclosure lid.
Danger to life from electric shock due to damaged devices
Operating a damaged inverter can lead to hazardous situations that result in death or serious
injuries due to electric shock.
• Only operate the inverter if it is technically safe and in full working order.
• Check the inverter regularly for visible damage.
• Only operate the inverter if there is no visible damage.
Risk of burns due to hot surfaces
The surface of the inverter can become very hot. Touching the surface can result in burns.
• Do not touch hot surfaces.
• During operation, do not touch any parts other than the lower enclosure lid of the inverter.
• Observe the safety messages on the inverter.
Damage to the inverter due to electrostatic discharge
Touching electronic components can cause damage to or destroy the inverter through electrostatic
discharge.
• Ground yourself before touching any components.
Observe local regulations
All electrical installations must comply with the electrical standards applicable on-site and the
National Electrical Code® (ANSI/NFPA 70). Installations in Canada must comply with the
applicable Canadian standards.
Installation Manual SB3-5TLUS22-IA-en-16 13
3 Scope of Delivery SMA America, LLC
3 Scope of Delivery
Check the scope of delivery for completeness and any externally visible damage.
Contact your distributor if the scope of delivery is incomplete or damaged.
Figure1: Components included in the scope of delivery
Item Quantity Description
A1Inverter
B 1 Wall mounting bracket for the inverter
C1DC Disconnect
D 1 Wall mounting bracket for the DC Disconnect
E 3 M5 x 8 cheese-head screw
F 2 M5 x 12 cheese-head screw
G 1 M6 x 16 cheese-head screw
H 6 M5 conical spring washer (including 1 spare)
I1M6 conical spring washer
K 1 Installation manual, user manual, production test report,
supplementary sheet with the default settings
14 SB3-5TLUS22-IA-en-16 Installation Manual
SMA America, LLC 4 Product Description
4 Product Description
4.1 Sunny Boy
The Sunny Boy is a transformerless PV inverter which converts the direct current of a PV array into
grid-compliant alternating current and feeds it into the utility grid.
Figure2: Sunny Boy design
Item Description
A Cooling fins
B Type label
CDisplay
D Lower enclosure lid screws
ELEDs
FDC Disconnect
GLower enclosure lid
H Upper enclosure lid
Installation Manual SB3-5TLUS22-IA-en-16 15
4 Product Description SMA America, LLC
The Sunny Boy is a multi-string inverter that has two input areas, A and B, each with its own
MPP tracker. This continually determines the maximum power point and controls the voltage on the
PV modules accordingly. The two separate MPP trackers make it possible to connect different
PV strings to input areas A and B. The PV strings may vary in the number of PV modules, their
orientation to the sun and shading.
Symbols on the Inverter
Symbol Description Explanation
Inverter This symbol defines the function of the
green LED. The green LED indicates the
operating state of the inverter.
Observe the documentation. This symbol defines the function of the
red LED. The red LED indicates an error.
Read this document for instructions on
how to correct the error.
Communication This symbol defines the function of the
blue LED. The blue LED indicates the
communication state of the inverter.
Equipment grounding
conductor terminal
Connection for the AC equipment
grounding conductor
16 SB3-5TLUS22-IA-en-16 Installation Manual
SMA America, LLC 4 Product Description
4.2 DC Disconnect
The DC Disconnect is a DC load-break switch which safely disconnects the PV array from the inverter.
Figure3: DC Disconnect design
Item Description
A Bracket for grounding the DC Disconnect enclosure
B Rubber grommet for the enclosure opening
C Bracket for hanging in the retainer
D Type label 1
EConduit knockouts
F Type label 2
G Enclosure lid screws
HEnclosure lid
ISwitch
Symbols on the DC Disconnect
Symbol Description Explanation
Equipment grounding
conductor terminal
Installation Manual SB3-5TLUS22-IA-en-16 17
Connection for the DC equipment
grounding conductors
4 Product Description SMA America, LLC
4.3 Type Labels
4.3.1 Sunny Boy
The type label provides a unique identification of the inverter. The type label is located on the
right-hand side of the enclosure.
Figure4: Type label design
Item Description Explanation
A Model Inverter device type
B S/N Inverter serial number
C Date of manufacture Inverter manufacture date (month/year)
D Device-specific characteristics ‒
The information on the type label is required for both safe operation of the inverter and for customer
support from the SMA Service Line. The type label must remain permanently affixed to the inverter.
18 SB3-5TLUS22-IA-en-16 Installation Manual
SMA America, LLC 4 Product Description
4.3.2 DC Disconnect
The type label provides a unique identification of the DC Disconnect. The type label is located on the
right-hand side of the enclosure.
Figure5: Layout of the type label
Item Description Explanation
A‒ Product name
B Item No. DC Disconnect device type
CDate of manufacture DC Disconnect manufacture date
(month/year) of the
D Device-specific characteristics ‒
E Serial No. DC Disconnect serial number
You will require the information on the type label to use the DC Disconnect safely and when seeking
customer support from the SMA Service Line. The type label must remain permanently affixed to the
DC Disconnect.
Installation Manual SB3-5TLUS22-IA-en-16 19
4 Product Description SMA America, LLC
4.3.3 Symbols on the Type Labels
Symbol Description Explanation
Danger to life due to high
voltages
Risk of burns due to hot surfaces The product can become hot during
Observe the documentation. Observe all documentation that is
ETL test mark The product has been certified by
FCC test mark The product complies with the
The product operates at high voltages.
All work on the inverter may only be
carried out by qualified persons.
operation. Avoid contact during
operation. Allow the product to cool
down sufficiently before carrying out
any work. Wear personal protective
equipment such as safety gloves.
supplied with the product.
Intertek as being in accordance with the
applicable directives.
requirements of the applicable
FCC standards.
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SMA America, LLC 4 Product Description
4.4 Display
The display shows the current operating data of the inverter (e.g. current power, daily energy,
total energy) as well as events or error messages. The power and energy are displayed as bars in the
diagram.
Figure6: Display layout (example)
Position Description Explanation
A Power Current power
B Day Daily energy
C Tot al To tal en ergy g enera ted si nce th e initia l star t-u p of
the inverter
D Active functions Displays the activated or active functions for
communication, network system services or
temperature derating
E Line conductor Line conductor involved for the values displayed
F Event number relating to the
Event number of errors relating to the utility grid
utility grid
G Output voltage/output current Displays output voltage and output current of a
line conductor in alternation
H Event number relating to the
Event number of errors relating to the inverter
inverter
I Input voltage/input current Displays input voltage and input current of an
input in alternation
Installation Manual SB3-5TLUS22-IA-en-16 21
4 Product Description SMA America, LLC
Position Description Explanation
K Event number relating to the
Event number of errors relating to the PV array
PV array
L Text line Displays an event message or error message
M Power and yield curve Displays the power curve of the last 16 feed-in
hours or the energy yields of the last 16 days
• In order to switch between the displays,
tap once on the enclosure lid.
Symbols on the Display
Symbol Description Explanation
Tapping You can operate the display by tapping it
(see Section9 "Display and LEDs", page53).
Telephone receiver Indicates a fault that cannot be corrected on site
• Contact the SMA Service Line
Wrench Indicates a fault that can be corrected on site by
a qualified person
Speedwire connection Indicates that communication via Speedwire is
active and that there is a network connection
Webconnect function Indicates that there is a connection to
Sunny Portal
Temperature symbol Indicates that the power of the inverter is limited
due to excessive temperature
Power limitation Indicates that external active power limitation via
the Power Reducer Box is active
PV array ‒
Inverter ‒
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SMA America, LLC 4 Product Description
Symbol Description Explanation
Grid relay Grid relay closed:
indicates that the inverter is feeding into the
utility grid
Grid relay open:
indicates that the inverter is disconnected from
the utility grid
Utility grid ‒
4.5 Communication Interface
The inverter can be fitted with a communication interface (e.g. RS485 or Speedwire with Webconnect
function). This communication interface enables the inverter to co mmun ica te wi th SMA c ommu nic atio n
products or other inverters (for information on supported products, see www.SMA-Solar.com).
You can only set the inverter parameters via SMA communication products.
Depending on the type of communication, RS485 or Speedwire, the parameters and messages are
displayed differently on the communication products.
Example: How the country data set parameter is displayed
For communication with RS485: CntrySet parameter
For communication with Speedwire: Set country standard parameter
You can adjust the country data set of the inverter before commissioning or within the first ten
operating hours via the two rotary switches in the inverter. All other operating parameters can only
be set via communication products.
4.6 Secure Power Supply (SPS)
The inv erter has an SPS mo dule that can supply th e PV array energy to an additional outlet connected
to the inverter in the event of grid failures of longer durations. The SPS module also has a connection
for the fan retrofit kit, enabling an external fan to be controlled.
4.7 Fan Retrofit Kit
The fan retrofit kit is used for additional inverter cooling at high ambient temperatures (for information
on installation and configuration, see the fan retrofit kit installation manual). The fan retrofit kit can be
retrofitted, installed at the factory if specified in the order, or included in the regular scope of delivery.
The Sunny Boy 6000TL-US, 7000TL-US and 7700TL-US are equipped with a fan as standard.
Installation Manual SB3-5TLUS22-IA-en-16 23
4 Product Description SMA America, LLC
4.8 Arc-Fault Circuit Interrupter (AFCI)
In accordance with the National Electrical Code®, Article 690.11, the inverter has a system for the
recognition of electric arc detection and interruption. An electric arc with a power of 300 W or
greater must be interrupted by the AFCI within the time specified by UL 1699B. A tripped AFCI can
only be reset manually. You can deactivate the automatic arc fault detection and interruption (AFCI)
via a communication product in "Installer" mode if you do not require this function. The 2011 edition
of the National Electrical Code
to a building must be fitted with a means of detecting and disconnecting serial electric arcs (AFCI) on
the PV side.
®
, Section 690.11 stipulates that newly installed PV systems attached
4.9 SD Card Slot
The inverter is equipped with an SD card slot. You can use the SD card when required to update the
inverter firmware.
4.10 Varistors
The DC Disconnect is equipped with four varistors on the DC side. Varistors are voltage-dependent
re sis tor s that pro tec t th e inve rte r on th e DC sid e agai nst sur ge overvoltages. It may be necessary under
certain circumstances to replace the varistors (see Section11.6 "Replacing DC Varistors", page76).
Despite this protection against surge overvoltages, PV arrays must be designed in such a way that the
maximum system voltage of the inverter is not exceeded (see Section13 "Technical Data", page82).
4.11 SMA OptiTrac Global Peak
SMA OptiTrac Global Peak is a further development of the MPP tracking tool SMA OptiTrac. MPP
tracking is a process that determines the highest usable power in the PV system at any given time.
The power generated by the PV array depends on the level of solar irradiation and the temperature
of the PV modules. As a result, the optimum operating point for maximum power (MPP) changes
constantly throughout the day.
SMA OptiTrac ensures that the operating point of the inverter always follows the MPP exactly.
In addition, with the aid of SMA OptiTrac Global Peak the inverter can detect the presence of several
maximum power points within the available operating range, such as may occur with partially shaded
strings in particular. The available power of the partially shaded strings can therefore be almost
completely fed into the utility grid.
SMA OptiTrac Global Peak is deactivated as standard and should, in the event of partially shaded
PV modules, be activated and set via a communication product (see Section 8.7).
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SMA America, LLC 5 Mounting
5 Mounting
5.1 Selecting the Mounting Location
Requirements for the mounting location:
Danger to life due to fire or explosion
Despite careful construction, electrical devices can cause fires.
• Do not mount the inverter in areas where highly flammable materials are stored.
• Do not mount the inverter in areas having a potentially explosive atmosphere
The inverter can become hot during operation
Touching the enclosure can result in burn injuries.
• Install the inverter in such a way that it cannot be touched accidentally.
☐ The inverter must be mounted to a solid building ground (e.g., concrete or block wall) or on
drywall to a beam or stud.
☐ In living areas, make sure that the building ground is not made of plasterboard or similar.
When in operation, the inverter makes noises which can be perceived as a nuisance.
☐ The mounting location must be suitable for the weight and dimensions of the inverter with
DC Disconnect (see Section13 "Technical Data", page82).
☐ The mounting location must not be exposed to direct sources of water spray such as sprinklers
or gutters.
☐ Climatic conditions must be met (see Section13 "Technical Data", page82).
☐ The mounting location should be freely and safely accessible at all times without the necessity
for any auxiliary equipment, such as scaffolding or lifting platforms. Non-fulfillment of these
criteria may restrict servicing.
☐ The mounting location should not be exposed to direct solar irradiation. Direct solar irradiation
ca n in cre ase the ope rat ing tem per atu re o f th e in ver ter . As a result, the inverter reduces its power
output in order to remain within the operating limits.
☐ To ensure optimal operation, the ambient temperature must be below 104°F (40°C).
The inverter can, however, be operated at higher ambient temperatures without risk in the event
of any possible reductions in output power.
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5 Mounting SMA America, LLC
Dimensions for mounting:
Figure7: Wall mounting bracket dimensions
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SMA America, LLC 5 Mounting
Recommended Clearances
Figure8: Recommended clearances
• To ensure optimal operation, maintain recommended clearances to walls, other inverters or
objects. This will prevent the inverter from reducing its power due to high temperatures.
• If the inverter is mounted outdoors, the clearance between the DC D isc onn ect and the fl oor mus t
be 3 ft. (914 mm). This prevents the ingress of splashing water into the DC Disconnect.
• Do not place or hang any objects on the inverter.
Installation Manual SB3-5TLUS22-IA-en-16 27
5 Mounting SMA America, LLC
Observe the permitted mounting position:
Figure9: Permitted and prohibited mounting positions
• Mount the inverter in a permitted mounting position with the display at eye level. This ensures
th at t her e can b e no in gre ss o f mo istur e in to t he inv ert er a nd that you can read display messages
and LED signals without any difficulty.
5.2 Mounting the Wall Mounting Bracket
Additionally required mounting material (not included in the scope of delivery):
☐ 2 or 3 screws (minimum diameter
☐2 or 3 washers (minimum external diameter 3⁄4 in. (18 mm)) that are suitable for the screws
☐ 2 or 3 screw anchors that are suitable for the foundation. Do not use hollow-wall anchors or
toggle bolts for mounting on drywall.
☐ If the inverter is to be protected against theft, 1 padlock (see Section5.4 "Attaching the
Anti-Theft Device", page32)
1. Attach the DC Disconnect bracket to the wall
mounting bracket of the inverter using the screws
and conical spring washers included in the delivery
and tighten them with an Allen key (AF 4) (torque:
44 in.-lbs (5.0 Nm)). Tighten the two upper screws
(M5x12) from the rear and the lower (M5x8) from
the front.
28 SB3-5TLUS22-IA-en-16 Installation Manual
1
⁄4 in. (6 mm)) that are suitable for the foundation
SMA America, LLC 5 Mounting
2. Align the wall mounting bracket horizontally at the mounting location.
3.
Danger to life due to electric shock or explosion if you drill into supply lines
Th ere may be gas pip es or e lec tri c cabl es b ehi nd the mount ing points which could be damaged
when drilling the holes for the wall mounting bracket.
• Make sure that there are no supply lines behind the mounting points.
4. Mark the p osition of the drill holes usi ng the wall mounting bracket and screw the wall mounting
bracket onto the wall using the screws and washers.
• For mounting on a stone wall, use one hole on
the right-hand and left-hand side and the lower
hole in the wall mounting bracket.
• For mounting on a stud or post in a drywall
construction, use the two holes at the center.
Installation Manual SB3-5TLUS22-IA-en-16 29
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