SMA SUNNY TRIPOWER CORE1-US User manual

SUNNY TRIPOWER
STP50-US-40-IA-en_es-11 | 104075-00.02 | Version 1.1
SUNNYTRIPOWER CORE1-US
ENGLISH Installation Manual ESPAÑOL Instrucciones de instalación

Table of Contents SMA Solar Technology America LLC
Installation ManualSTP50-US-40-IA-en_es-112
Table of Contents
1 Information on this Document................................................. 7
1.1 Validity........................................................................................................................ 7
1.2 Target Group.............................................................................................................. 7
1.3 Symbols ...................................................................................................................... 7
1.4 Additional Information ............................................................................................... 7
1.5 Nomenclature............................................................................................................. 8
1.6 Typographies.............................................................................................................. 8
2 Safety ........................................................................................ 9
2.1 Intended Use .............................................................................................................. 9
2.2 Safety Information...................................................................................................... 10
3 Scope of Delivery..................................................................... 12
4 Product Description.................................................................. 13
4.1 Sunny Tripower .......................................................................................................... 13
4.2 Interfaces and Functions ............................................................................................ 15
5 Mounting................................................................................... 18
5.1 Requirements for Mounting ....................................................................................... 18
5.2 Mounting the Inverter................................................................................................. 21
6 Electrical Connection................................................................ 23
6.1 Safety during Electrical Connection.......................................................................... 23
6.2 Overview of the Connection Area ............................................................................ 24
6.3 AC Connection........................................................................................................... 25
6.3.1 Requirements for the AC Connection......................................... 25
6.3.2 Connecting the Inverter to the Utility Grid................................. 27
6.4 DC Connection........................................................................................................... 28
6.4.1 Requirements for the DC Connection......................................... 28
6.4.2 Assembling the DC Connectors ................................................. 29
6.4.3 Connecting the PV Array ............................................................ 30
6.5 Connecting the Multifunction Relay .......................................................................... 31
6.5.1 Procedure for connecting the multifunction relay...................... 31
6.5.2 Operating Modes of the Multifunction Relay ........................... 32
6.5.3 Connection Options.................................................................... 32
6.5.4 Connection to the Multifunction Relay....................................... 36
6.6 Connecting the Network Cables............................................................................... 38
7 Commissioning ......................................................................... 41
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Table of Contents
SMA Solar Technology America LLC
Installation Manual STP50-US-40-IA-en_es-11 3
7.1 Commissioning Procedure ......................................................................................... 41
7.2 Commissioning the Inverter........................................................................................ 41
7.3 Establishing a connection to the user interface ........................................................ 43
7.3.1 Establishing a direct connection via WLAN.............................. 43
7.3.2 Establishing a Connection via Ethernet in the local network.... 44
7.4 Logging Into the User Interface................................................................................. 45
7.5 Selecting a configuration option ............................................................................... 46
7.6 Adjustable Parameters............................................................................................... 48
8 Disconnecting the Inverter from Voltage Sources................. 50
9 Decommissioning the Inverter................................................. 53
10 Technical Data .......................................................................... 56
11 Compliance Information.......................................................... 60
12 Contact ...................................................................................... 61
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Legal Provisions SMA Solar Technology America LLC
Installation ManualSTP50-US-40-IA-en_es-114
Legal Provisions
No part of this document may be reproduced, stored in a retrieval system, or transmitted, in any
form or by any means, be it electronic, mechanical, photographic, magnetic or otherwise, without
the prior written permission of SMA Solar Technology America LLC.
SMA Solar Technology America LLC makes no representations or warranties, 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 representations or warranties are expressly disclaimed. Neither SMA
Solar Technology America LLC 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 product
improvements and field usage experience may cause SMA Solar Technology America LLC to make
changes to these specifications without advance notice, or per contract provisions in those cases
where a supply agreement requires advance notice. SMA 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.
Software licenses
The licenses for the used software modules can be called up on the user interface of the product.
Trademarks
All trademarks are recognized, even if not explicitly identified as such. Missing designations do not
mean that a product or brand is not a registered trademark.
Modbus® is a registered trademark of SchneiderElectric and is licensed by the
ModbusOrganization,Inc.
QRCode is a registered trademark of DENSOWAVEINCORPORATED.
Phillips® and Pozidriv® are registered trademarks of PhillipsScrewCompany.
Torx® is a registered trademark of AcumentGlobalTechnologies,Inc.
SMASolar TechnologyAmerica LLC
6020 West Oaks Blvd.
Suite 300 Rocklin, CA 95765 U.S.A.
Status: 8/7/2017
Copyright©2017SMA Solar Technology America LLC. All rights reserved.
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Important Safety Instructions
SMA Solar Technology America LLC
Installation Manual STP50-US-40-IA-en_es-11 5
Important Safety Instructions
SAVE THESE INSTRUCTIONS
This manual contains important instructions for the following products:
• STP 50-US-40 (Sunny Tripower CORE1-US)
This manual must be followed when using this product.
The product is designed and tested in accordance with 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.
Warnings on this Product
The following symbols are used as product markings with the following meanings.
Warning regarding dangerous voltage
The product works with high voltages. All work on the product must only be per-
formed 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.
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.
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General Warnings SMA Solar Technology America LLC
Installation ManualSTP50-US-40-IA-en_es-116
General Warnings
WARNING
All electrical installations must be carried out in accordance with the applicable electrical
standards on site and the National Electrical Code® ANSI/NFPA 70. This document does not
replace and is not intended to replace any local, state, provincial, federal or national laws,
regulations 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.
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.
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1 Information on this Document
SMA Solar Technology America LLC
Installation Manual STP50-US-40-IA-en_es-11 7
1 Information on this Document
1.1 Validity
This document is valid for device type "STP 50-US-40" (Sunny Tripower CORE1-US).
1.2 Target Group
The tasks described in this document must only be performed by qualified persons. Qualified
persons 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 installations
• Training in the installation and commissioning of electrical devices and installations
• Knowledge of the applicable standards and directives
• Knowledge of and compliance with this document and all safety information
1.3 Symbols
Symbol Explanation
Information that is important for a specific topic or goal, but is not
safety-relevant
Indicates a requirement for meeting a specific goal
Desired result
A problem that might occur
1.4 Additional Information
Links to additional information can be found at www.SMA-Solar.com:
Document title Document type
"Parameters and Measured Values"
Overview of All Inverter Operating Parameters and Their Configura-
tion Options
Technical Information
"Webconnect Systems in SunnyPortal"
Registration in SunnyPortal and setting or changing operating pa-
rameters of the inverter
User Manual
"SMAModbus® Interface"
Information on the commissioning and configuration of the SMA
Modbus interface
Technical Information
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1 Information on this Document SMA Solar Technology America LLC
Installation ManualSTP50-US-40-IA-en_es-118
Document title Document type
"SunSpec® Modbus® Interface"
Information on the commissioning and configuration of the SunSpec
Modbus interface
Technical Information
"Efficiency and Derating"
Efficiency and Derating Behavior of the SunnyBoy, SunnyTripower
and SunnyMiniCentral Inverters
Technical Information
Operation, configuration and troubleshooting User Manual
1.5 Nomenclature
Complete designation Designation in this document
Sunny Tripower CORE1-US Inverter, product
SMA Solar Technology America LLC SMA
1.6 Typographies
Typography Use Example
bold • Terminals
• Slots
• Parameters
• Elements on the user interface
• Elements to be selected
• Elements to be entered
• The value can be found in
the field Energy.
• Select Settings.
• Enter 10 in the field
Minutes.
>• Connects several elements to be
selected
• Select Settings > Date.
[Button]• Button to be selected or pressed • Select [Next].
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2 Safety
SMA Solar Technology America LLC
Installation Manual STP50-US-40-IA-en_es-11 9
2 Safety
2.1 Intended Use
The SunnyTripower is a transformerless PV inverter, with 6 MPPtrackers, that converts the direct
current of the PV array to grid-compliant, three-phase current and feeds it into the utility grid.
The product is suitable for indoor and outdoor use.
All components must remain within their permitted operating ranges at all times.
The product may only be operated with PV arrays (PV modules and cabling) that are approved in
accordance with the electrical standards applicable on-site and the NationalElectricalCode®
ANSI/NFPA 70.
No galvanic isolation
The product is not equipped with a transformer and therefore has no galvanic isolation.
• Do not operate grounded PV modules together with the product. If grounded PV modules
are connected to the product, an event will occur. The event will be displayed, along with
the associated message, in the event list on the user interface of the product.
• Only ground the mounting frames of the PV modules.
• The neutral conductor of the AC output is grounded within the product as standard.
When connecting a utility grid with neutral conductor, the bridge between the neutral
conductor of the AC output and the enclosure must be removed.
PV modules with a high capacity to ground may only be used if their coupling capacity does not
exceed 12.6μF.
To protect the PV system against excessive reverse currents under fault conditions, a DC-side
overcurrent protective device must be connected in accordance with the National Electrical Code®
to prevent any short-circuit currents that exceed the ampacity of the DC electric circuit or the
maximum series fuse rating of the PV modules. Typically, this requires string fusing where more than
two strings are combined in parallel. Where an overcurrent protection device is required, the
National Electrical Code® requires that both positive and negative conductors have overcurrent
protection for ungrounded PV modules.
The product is approved for the USA market.
Use this product only in accordance with the information provided in the enclosed documentation
and with the locally applicable standards and directives. Any other application may cause
personal injury or property damage.
Alterations to the product, e.g. changes or modifications, are only permitted with the express written
permission of SMA. Unauthorized alterations will void guarantee and warranty claims and in most
cases terminate the operating license. SMA shall not be held liable for any damage caused by
such changes.
Any use of the product other than that described in the Intended Use section does not qualify as the
intended use.
The enclosed documentation is an integral part of this product. Keep the documentation in a
convenient place for future reference and observe all instructions contained therein.
The type label must remain permanently attached to the product.
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2 Safety SMA Solar Technology America LLC
Installation ManualSTP50-US-40-IA-en_es-1110
2.2 Safety Information
This section contains safety information that must be observed at all times when working on or with
the product.
To prevent personal injury and property damage and to ensure long-term operation of the product,
read this section carefully and observe all safety information at all times.
DANGER
Danger to life due to high voltages of the PV array
When exposed to sunlight, the PV array generates dangerous DC voltage, which is present in the
DC conductors and the live components of the inverter. Touching the DC conductors or the live
components can lead to lethal electric shocks. If you disconnect the DC connectors from the
inverter under load, an electric arc may occur leading to electric shock and burns.
• Do not touch non-insulated cable ends.
• Do not touch the DC conductors.
• Do not touch any live components of the inverter.
• Have the inverter mounted, installed and commissioned only by qualified persons with the
appropriate skills.
• If an error occurs, have it rectified by qualified persons only.
• Prior to performing any work on the inverter, disconnect it from all voltage sources as
described in this document.
DANGER
Danger to life due to electric shock in case of a ground fault
If a ground fault occurs, parts of the system may still be live. Touching live components can lead
to lethal electric shocks.
• Ensure that no voltage is present and wait five minutes before touching any parts of the PV
system or the inverter.
DANGER
Danger to life due to electric shock
Touching an ungrounded PV module or array frame can cause a lethal electric shock.
• Connect and ground the frame of the PV modules, the array frame and the electrically
conductive surfaces so that there is continuous conduction. Observe the applicable local
regulations.
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2 Safety
SMA Solar Technology America LLC
Installation Manual STP50-US-40-IA-en_es-11 11
CAUTION
Risk of burns due to hot enclosure parts
The enclosure and the enclosure lid may get hot during operation. The DC load-break switch can
not become hot.
• Do not touch hot surfaces.
• Wait until the inverter has cooled down before touching the enclosure or enclosure lid.
NOTICE
Damage to seals on the enclosure lids in subfreezing conditions
If you open the enclosure lids when temperatures are below freezing, the enclosure seals can be
damaged. This can lead to moisture entering the inverter.
• Only open the enclosure lids if the ambient temperature is not below -5°C (23°F)
• If a layer of ice has formed on the seal of the lid when temperatures are below freezing,
remove it prior to opening the enclosure lids (e.g. by melting the ice with warm air).
Observe the applicable safety regulations.
NOTICE
Damage to the inverter due to moisture and dust intrusion
Dust or moisture intrusion can damage the inverter and impair its functionality.
• Close all enclosure openings of the inverter tightly.
• Never open the inverter when it is raining or snowing, or the humidity is over 95%.
NOTICE
Damage to the type label due to the use of cleaning agents
• If the inverter is dirty, clean the enclosure, the enclosure lid, the type label and the LEDs with
a damp cloth and clear water only.
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3 Scope of Delivery SMA Solar Technology America LLC
Installation ManualSTP50-US-40-IA-en_es-1112
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.
EB CD
GH K
A
I J
F
SUNNY TRIPOWER
Figure 1: Components included in the scope of delivery
Position Quantity Designation
A 1 Inverter
B 4 Foot
C 8 Hexagon screw M8x40
D 8 Washer
E 4 Carry handle
F 1 3-pole terminal block for the connection to the multifunction relay
G 12 Negative DC connector and cold-formed contact ferrule*
H 12 Positive DC connector and cold-formed contact ferrule*
I 12 Sealing plug for negative DC connectors
J 12 Sealing plug for positive DC connectors
K 1 Installation manual, production test report
* Connector type: UTX from Amphenol Industrial Solar Technologies
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4 Product Description
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Installation Manual STP50-US-40-IA-en_es-11 13
4 Product Description
4.1 SunnyTripower
The SunnyTripower is a transformerless PV inverter, with 6 MPPtrackers, that converts the direct
current of the PV array to grid-compliant, three-phase current and feeds it into the utility grid.
A
F
D
N
M
L
G
B
C
E
N
H
J
K
OI
Figure 2: Design of the SunnyTripower
Position Designation
A Cover
B AC Connection Unit
C DC Connection Unit
D LEDs
The LEDs indicate the operating state of the inverter.
E Cable glands for data cables
F DC load-break switch
G DC connector
H Equipment grounding bar for the equipment grounding conductor of the
PV array
I Fan bracket with three fans
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4 Product Description SMA Solar Technology America LLC
Installation ManualSTP50-US-40-IA-en_es-1114
Position Designation
J Type label
The type label uniquely identifies the inverter. The type label must remain
permanently attached to the product. You will find the following informa-
tion on the type label:
• Device type (Model)
• Serial number (SerialNo.)
• Date of manufacture
• Device-specific characteristics
K Additional label with details for registration in SunnyPortal and WLAN
password:
• Identification key (PIC) for registration in Sunny Portal
• Registration ID (RID) for registration in Sunny Portal
• WLAN password (WPA2-PSK) for the direct connection to the user
interface of the inverter via WLAN
L Enclosure opening for AC connection
M Enclosure opening for additional cable
N Enclosure opening for carrying handle
O AC load-break switch
Symbols on the Inverter and on the Type Label
Symbol Explanation
Inverter
Together with the green LED, this symbol indicates the operating state of
the inverter.
Observe the documentation
Together with the red LED, this symbol indicates an error.
Data transmission
Together with the blue LED, this symbol indicates the status of the network
connection.
Equipment Grounding Terminal
This symbol indicates the position for the connection of an equipment
grounding conductor.
Grounding
This symbol indicates the position for the connection of an additional
equipment grounding conductor.
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4 Product Description
SMA Solar Technology America LLC
Installation Manual STP50-US-40-IA-en_es-11 15
Symbol Explanation
Risk of burns due to hot surfaces
The product can get hot during operation. Avoid contact during opera-
tion. Prior to performing any work on the product, allow the product to
cool down sufficiently.
Danger to life due to electric shock
The product operates at high voltages. Prior to performing any work on
the product, disconnect the product from voltage sources. All work on the
product must be carried out by qualified persons only.
Observe the documentation
Observe all documentation supplied with the product.
110441-00.01
Warning label with compliance information
UL1741 is the standard applied by Underwriters Laboratories to the
product to certify that the product meets the requirements of the National
Electrical Code®, the IEEE929‑2000 standard and the IEEE1547 stan-
dard.
4.2 Interfaces and Functions
The inverter can be equipped or retrofitted with the following interfaces and functions:
User interface for the monitoring and configuration of the inverter
The inverter is standard-equipped with an integrated web server, which provides a user interface for
configuring and monitoring the inverter. The inverter user interface can be called up via the web
browser if there is an existing WLAN or Ethernet connection to a computer, tablet PC or
smartphone.
SMASpeedwire
The inverter is equipped with SMASpeedwire as standard. SMASpeedwire is a type of
communication based on the Ethernet standard. This enables inverter-optimized 10 or 100Mbit
data transmission between Speedwire devices in PV systems and the user interface of the inverter.
SMA Webconnect
The inverter is equipped with a Webconnect function as standard. The Webconnect function
enables direct data transmission between the inverters of a small-scale system and the Internet
portals SunnyPortal or SunnyPlaces without any additional communication device and for a
maximum of 4 inverters per SunnyPortal system. In large-scale PV power plants with more than 4
inverters, there is the option of establishing data transmission between the inverters and the
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4 Product Description SMA Solar Technology America LLC
Installation ManualSTP50-US-40-IA-en_es-1116
SunnyPortal web-based monitoring platform via the SMAClusterController or to distribute the
inverters over several plants in the SunnyPortal. If there is an existing WLAN or Ethernet
connection, you can directly access your SunnyPortal system via the web browser on the computer,
tablet PC or smartphone.
WLAN
The inverter is equipped with a WLAN interface as standard. The inverter is delivered with the
WLAN interface activated as standard. If you do not want to use WLAN, you can deactivate the
WLAN interface.
In addition, the inverter has a WPS (WiFi Protected Setup) function. The WPS function is for
automatically connecting the inverter to a device in the same network as the inverter (e.g. router,
computer, tablet PC or smartphone).
Expanding the radio range in the WLAN network
In order to expand the radio range of the inverter in the WLAN network, you can install the
Antenna Extension Kit accessory set in the inverter.
Modbus
The inverter is equipped with a Modbus interface. The Modbus interface is deactivated by default
and must be configured as needed.
The Modbus interface of the supported SMA devices is designed for industrial use and has the
following tasks:
• Remote query of measured values
• Remote setting of operating parameters
• Setpoint specifications for system control
Module slots
The inverter is standard-equipped with two module slots. The module slots are located on the
communication assembly and allow additional modules to be connected (e.g. SMA Sensor
Module). The modules are available as accessories. The installation of two identical modules is not
permissible.
SMA RS485 Module
With the assembly of the RS485 Module, the inverter can communicate with special
SMAcommunication products (Information on assembly and connection see manual of the SMA
RS485 Module). The SMA RS485 Module can be retrofitted.
Antenna Extension Kit
Within the WLAN network, the Antenna Extension Kit enables the radio range of the inverter to be
upgraded (Information on assembly and connection see manual of the Antenna Extension Kit). The
Antenna Extension Kit can be retrofitted.
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4 Product Description
SMA Solar Technology America LLC
Installation Manual STP50-US-40-IA-en_es-11 17
Grid Management Services
The inverter is a grid support utility interactive inverter. The inverter has been tested and certified to
be compliant with UL1741SA (2016/09/07). For connecting the inverter to the utility grid, no
additional grid monitoring equipment is necessary. A description of the tested functions and
instructions on the activation and setting of functions can be found in the technical information "Grid
support utility interactive inverters" at www.SMA-Solar.com.
PVRapidShutdownSystemEquipment
The inverter is a PVRapidShutdownSystemEquipment and performs the function of voltage
reduction according to UL 1741 CRD PV Rapid Shutdown Systems 2015. When a rapid shutdown
is triggered by disconnecting the utility grid, the inverter discharges independently on the AC side to
≤30 V within 30 seconds.
If a disconnection device is used in addition between the inverter and the PV array that disconnects
the PV array in the case of a rapid shutdown, the inverter discharges independently on the DC side
to ≤30V within 30 seconds.
Attention - The system status indicator shall be installed in a location in close proximity to the
system actuator, where the indication of safe shutdown can be clearly seen.
SMA Sensor Module
The SMA Sensor Module has different interfaces for connecting various sensors (i.e. temperature
sensor, irradiation sensor, anemometer or energy meter). The SMA Sensor Module converts the
signals of the connected sensors and transmits them to the inverter. The SMA Sensor Module can
be retrofitted.
Multifunction Relay
The inverter is equipped with a multifunction relay as standard. The multifunction relay is an
interface that can be configured for the operating mode used by a particular system.
String-Failure Detection
The string-failure detection measures the total current of every input and continuously calculates the
mean values for the inputs in question. The total currents are compared with the mean values. If a
total current exceeds or falls short of the mean value by the set tolerance value, event is reported.
Marginally increased total currents are reliably detected over several query intervals and
distinguished from typical current fluctuations of the PV array. String-failure detection is deactivated
by default and must be activated. In addition, the tolerance value can be set via the user interface
and the mean values read off.
Arc-Fault Circuit Interrupter (AFCI)
In accordance with the National Electrical Code®, the inverter has a system for arc fault detection
and interruption.
An electric arc with a power of 300W or greater must be interrupted by the AFCI in the time
specified by UL 1699B. A detected electric arc causes the inverter to interrupt feed-in operation. In
order to restart feed-in operation, the feed-in operation must be activated manually. If the
installation conditions allow it, you can deactivate the arc-fault circuit interrupter.
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5 Mounting SMA Solar Technology America LLC
Installation ManualSTP50-US-40-IA-en_es-1118
5 Mounting
5.1 Requirements for Mounting
Requirements for the Mounting Location:
WARNING
Danger to life due to fire or explosion
Despite careful construction, electrical devices can cause fires.
• Do not mount the product in areas containing highly flammable materials or gases.
• Do not mount the product in potentially explosive atmospheres.
☐ The mounting location must be suitable for the weight and dimensions of the inverter (see
Section10 "Technical Data", page56).
☐ The mounting location should be freely and safely accessible at all times without the need for
any auxiliary equipment (such as scaffolding or lifting platforms). Non-fulfillment of these
criteria may restrict servicing.
☐ The inverter can be mounted in a position that is directly exposed to solar irradiation. There is,
however, the possibility that the inverter reduces its power output to avoid overheating due to
high temperatures.
☐ The DC load-break switch of the inverter must always be freely accessible.
☐ Climatic conditions must be met (see Section10 "Technical Data", page56).
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5 Mounting
SMA Solar Technology America LLC
Installation Manual STP50-US-40-IA-en_es-11 19
Dimensions for mounting:
M8x14/17+1
M8x14/17+1
155 (6.1)
205 (8.07)
155 (6.1)
205 (8.07)
46.2
(1.82)
46.2
(1.82)
112.85
(4.44)
119.17
(4.69)
155 (6.1)
205 (8.07)
155 (6.1)
205 (8.07)
79.4
(3.13)
79.4
(3.13)
(0.67+0.04)
(0.67+0.04)
112.85
(4.44)
119.17
(4.69)
395
(15.55)
Figure 3: Position of the anchoring points (dimensions in mm (in))
Structural stability:
☐ When mounting with feet or profile rails, the width of one foot or the profile rail must be at
least 175mm (7in) to ensure structural stability.
☐ The inverter must be attached under the following conditions:
– Inclination of the support surface: >3°
– Wind speed (without wind gusts): > 25m/s (82 ft/s)
– Height of the feet or the profile rail: > 100mm (4in)
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5 Mounting SMA Solar Technology America LLC
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☐ When mounting with profile rails, an attachment or fixation by loading is required. When
mounting with profile rail, SMA recommends to bolt the profile rail e.g. to the profile of the
module frame or to attach a sheet metal (which can be weighted with stones or with
sandbags) at the profile rails. This will ensure that the inverter is fixed.
Recommended Clearances:
To guarantee optimal operation and adequate heat dissipation for the inverter, the following
requirements for clearances should be observed. This will prevent the inverter power output from
being reduced due to excessive temperatures. However, smaller clearances are permitted without
causing any risk.
Prescribed clearances in accordance with the National Electrical Code®
Under certain conditions, the National Electrical Code® specifies greater clearances.
• Ensure that the prescribed clearances in accordance with the National Electrical Code®
are adhered to.
☐ Maintain the recommended clearances to roof edges, skylights, walls as well as to other
inverters or objects. This ensures that the load-break switches on the inverter can be operated
easily and the LED signals can be read without difficulty.
☐ For possible service deployments, SMA recommends ensuring sufficient clearance from walls,
other inverters or objects on all four sides of the inverter enclosure. Non-fulfillment of these
criteria may restrict servicing.
☐ If multiple inverters are mounted in areas with high ambient temperatures, increase the
clearances between the inverters and ensure sufficient fresh-air supply.
ENGLISH