SMA 8000TL User manual

STP8-17TL-IEN110121 | IMEN-STP10-17TL | Version 2.1 EN
PV Inverter
SUNNY TRIPOWER
8000TL/10000TL/12000TL/15000TL/17000TL
Installation Guide

Tapping on the lower lid: • Activating the background illumination • Switching through the energy values of the past 16 feed-in hours to
the daily energy values of the past 16 days
• Switching through the line display
Current output
Daily energy
Total energy generated since the Sunny Tripower was installed Text line for displaying an event
Bluetooth connection to other Sunny Tripowers
Input voltage / input current Grid relay
Grid event number
Sunny Tripower event number
Power reduction due to excessive temperature • Fan might need cleaning • Provide better ventilation for Sunny Tripower
PV generator event number
Switching between input A and B every 10 seconds
Power curve of the past 16 feed-in hours or past 16 days (switching the display is done by tapping on the display)
Disturbance that can be remedied on-site (see section 11.2 )
Device disturbance Contact SMA Serviceline
Output voltage / output current of the phase as shown below
AB
Phase assignment

SMA Solar Technology AG Table of Contents
Installation Guide STP8-17TL-IEN110121 3
Table of Contents
1 Notes on this Manual. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
1.1 Scope of Validity. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
1.2 Target Group . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
1.3 Additional Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
1.4 Symbols Used . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
2 Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
2.1 Appropriate Usage. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
2.2 Safety Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
2.3 Explanation of Symbols . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
2.3.1 Symbols on the Inverter. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
2.3.2 Symbols on the Type Label . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
3 Product Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
3.1 Overvoltage Protectors Type II . . . . . . . . . . . . . . . . . . . . . . . . . 14
3.2 Auto-adaptive Identification of String Failure . . . . . . . . . . . . . . 14
3.3 Electronic string fuse . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
3.4 Reactive power feeding and grid safety management . . . . . . . 15
4 Unpacking. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
4.1 Scope of Delivery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
4.2 Identifying the Inverter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
5 Installing the Device. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
5.1 Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
5.2 Selecting the Mounting Location. . . . . . . . . . . . . . . . . . . . . . . . 18
5.3 Mounting the Inverter with Rear Panel . . . . . . . . . . . . . . . . . . . 20

Table of Contents SMA Solar Technology AG
4 STP8-17TL-IEN110121 Installation Guide
6 Electrical Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
6.1 Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
6.2 Overview of the Connection Area . . . . . . . . . . . . . . . . . . . . . . 24
6.3 Connecting the Public Grid (AC) . . . . . . . . . . . . . . . . . . . . . . . 26
6.3.1 Conditions for the AC Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
6.3.2 AC Connection Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
6.3.3 Connecting the Second Protective Conductor. . . . . . . . . . . . . . . . . . . . . . . . 30
6.4 Connection of the PV Generator (DC) . . . . . . . . . . . . . . . . . . . 31
6.4.1 Conditions for the DC connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
6.4.2 Assembling the DC plug connector. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
6.4.3 Opening the DC Plug Connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
6.4.4 Connecting the PV Generator (DC) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
6.5 Setting the Country Standard and Display Language . . . . . . . 42
6.5.1 Checking the Country Standard . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
6.5.2 Expansion of shutdown thresholds . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
6.5.3 Setting the Country Standard and Language using Rotary Switches . . . . . . 48
6.6 Communication. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
6.6.1 Bluetooth . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
6.6.2 Multi-function relay . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
6.6.3 Communication module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54
6.7 Retrofitting Overvoltage Protectors Type II . . . . . . . . . . . . . . . . 55
7 Commissioning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57
7.1 Commissioning the Inverter. . . . . . . . . . . . . . . . . . . . . . . . . . . . 57
7.2 Display messages during initialization . . . . . . . . . . . . . . . . . . . 59
7.3 Self-test in accordance with ENEL guideline (only for Italy) . . . 60
7.3.1 Starting the Self-Test by Tapping. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60
7.3.2 Test Sequence . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61
7.3.3 Interruption of the Self-Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64
7.3.4 Restarting the Self-Test. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64
7.4 Activating the auto-adaptive string failure detection. . . . . . . . . 65

SMA Solar Technology AG Table of Contents
Installation Guide STP8-17TL-IEN110121 5
8 Disconnecting the Inverter. . . . . . . . . . . . . . . . . . . . . . . . . 66
8.1 Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66
8.2 Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67
9 Maintenance and Cleaning. . . . . . . . . . . . . . . . . . . . . . . . 70
9.1 Checking Heat Dissipation . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70
9.1.1 Cleaning the Air Grills. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71
9.1.2 Cleaning the Fan on the Underside of the Inverter . . . . . . . . . . . . . . . . . . . . 72
9.1.3 Cleaning the Fans on the Left-Hand Side of the Inverter . . . . . . . . . . . . . . . . 73
9.1.4 Checking the fans . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75
9.2 Checking the Electronic Solar Switch (ESS) for wear . . . . . . . . 76
10 Slot for SD card . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77
11 Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 78
11.1 Event messages. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 78
11.2 Error Messages. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 79
12 Failure search . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88
12.1 Sunny Tripower is beeping . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88
12.2 Checking the PV Array for a Ground Fault . . . . . . . . . . . . . . . . 89
12.3 Check varistors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 91
12.4 Replacing overvoltage protectors type II . . . . . . . . . . . . . . . . . 94
13 Decommissioning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 96
13.1 Dismantling the Inverter. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 96
13.2 Replacing the enclosure lid. . . . . . . . . . . . . . . . . . . . . . . . . . . . 96
13.3 Packing the Inverter. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 98
13.4 Storing the Inverter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 98
13.5 Disposing of the Inverter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 98

Table of Contents SMA Solar Technology AG
6 STP8-17TL-IEN110121 Installation Guide
14 Technical Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 99
14.1 Sunny Tripower 8000TL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 99
14.2 Sunny Tripower 10000TL . . . . . . . . . . . . . . . . . . . . . . . . . . . . 104
14.3 Sunny Tripower 12000TL . . . . . . . . . . . . . . . . . . . . . . . . . . . . 109
14.4 Sunny Tripower 15000TL . . . . . . . . . . . . . . . . . . . . . . . . . . . . 114
14.5 Sunny Tripower 17000TL . . . . . . . . . . . . . . . . . . . . . . . . . . . . 119
15 Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 124
16 Contact . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 125

SMA Solar Technology AG Notes on this Manual
Installation Guide STP8-17TL-IEN110121 7
1 Notes on this Manual
1.1 Scope of Validity
This installation guide describes the assembly, installation, commissioning, maintenance and failure
search of the following SMA inverters:
• Sunny Tripower 8000TL (STP 8000TL-10)
• Sunny Tripower 10000TL (STP 10000TL-10)
• Sunny Tripower 12000TL (STP 12000TL-10)
• Sunny Tripower 15000TL (STP 15000TL-10)
• Sunny Tripower 17000TL (STP 17000TL-10)
Store this manual where it will be accessible at all times.
1.2 Target Group
This manual is for qualified personnel. The tasks described in this manual may only be performed by
qualified personnel.
1.3 Additional Information
You will find further information on special topics such as designing a line circuit breaker or the
description of the operating parameters in the download area at www.SMA.de/en.

Notes on this Manual SMA Solar Technology AG
8 STP8-17TL-IEN110121 Installation Guide
1.4 Symbols Used
The following types of safety instructions and general information appear in this document as
described below:
DANGER!
DANGER indicates a hazardous situation which, if not avoided, will result in death or
serious injury.
WARNING!
WARNING indicates a hazardous situation which, if not avoided, could result in death or
serious injury.
CAUTION!
CAUTION indicates a hazardous situation which, if not avoided, could result in minor or
moderate injury.
NOTICE!
NOTICE indicates a situation that can result in property damage, if not avoided.
Information
Information provides tips that are valuable for the optimal operation of your product.
☑ This symbol indicates an outcome.

SMA Solar Technology AG Safety
Installation Guide STP8-17TL-IEN110121 9
2 Safety
2.1 Appropriate Usage
The Sunny Tripower is a PV inverter which converts the DC current of a PV generator into AC current
and feeds it into the public grid.
Principle of a PV plant with this Sunny Tripower
The Sunny Tripower may only be operated with PV generators (modules and cabling) of
protectionclass II. Do not connect any sources of energy other than PV modules to the Sunny
Tripower.
When designing the PV system, ensure that the values comply with the permitted operating range of
all components at all times. The free design program "Sunny Design"
(www.SMA.de/en/SunnyDesign) will assist you. The manufacturer of the PV modules must have
approved the modules for use with this Sunny Tripower unit. You must also ensure that all measures
recommended by the module manufacturer for long-term maintenance of the module properties are
taken (see also Technical Information "Module Technology", in the download area of
www.SMA.de/en).
String connections Sunny Tripower 8000TL, 10000TL and 12000TL
The Sunny Tripower models 8000TL, 10000TL and 12000TL only have 4 string
connections at inputA!
Capacitive Leakage Currents
PV modules with large capacities relative to ground, such as thin-film modules with cells on
a metallic substrate, are only to be implemented if their coupling capacity does not exceed
2.55 μF.
During grid feeding, a leakage current flows from the cells to ground. The strength of this
current depends on the manner in which the modules are installed (e.g. foil on metal roof)
and on the prevailing weather conditions (e.g. rain, snow) This "normal" leakage current
may not exceed 50 mA due to the fact that the inverter would otherwise automatically
disconnect from the grid as a protective measure. Further information on this topic is
available in the Technical Information "Capacitive Leakage Currents" in the download area
at www.SMA.de/en.

Safety SMA Solar Technology AG
10 STP8-17TL-IEN110121 Installation Guide
Do not use the Sunny Tripower for purposes other than those described here. Alternative uses,
modifications to the Sunny Tripower or the installation of components not expressly recommended or
sold by SMA Solar Technology AG void the warranty claims and operation permission.
Certified countries
With the appropriate settings, the Sunny Tripower 10000TL/12000TL/15000TL/17000TL comply
with the requirements specified in the following standards and directives
(dated: January/2011):
• UTE C15-712*
• VDE 0126-1-1 (02.2006)
•Enel-GUIDA*
• C10/C11(08.2003)a)*
•PPDS*
• RD 1663/2000 (2000)*
• RD 1663/661*
• EN 50438 (12.2007)b)*
• AS 4777 (2005)*
• PPC (06.2006)*
• G83/1-1*
• SI 4777*
• IEC 61727 (MEA)*
• IEC 61727 (PEA)*
a) only possible if the 3-phase nominal voltage of the phase conductor is 400 V
b) does not apply to all national standard deviations of EN 50438
* applies to Sunny Tripower 10000TL/12000TL/15000TL/17000TL, is planned for Sunny Tripower 8000TL
SMA Solar Technology AG can preset special grid parameters for other countries/installation
locations according to customer requests after evaluation by SMA Solar Technology AG.
You can make later modifications yourself by changing software parameters with respective
communication products (e.g. Sunny Data Control or Sunny Explorer). To change the grid-relevant
parameters, you need a personal access code, the so-called SMA Grid Guard code. The application
form for the personal access code can be found in the download area at www.SMA.de/en in the
category "Certificate" of the respective inverter.

SMA Solar Technology AG Safety
Installation Guide STP8-17TL-IEN110121 11
2.2 Safety Instructions
DANGER!
Danger to life due to high voltages in the inverter!
• All work on the inverter may be carried out by qualified personnel only.
• The appliance is not to be used by children or persons with reduced physical, sensory
or mental capabilities, or lack of experience and knowledge, unless they have been
given supervision or instruction.
• Children should be supervised to ensure that they do not play with the appliance.
CAUTION!
Danger of burn injuries due to hot enclosure parts!
During operation, the upper lid of the enclosure and the enclosure body may become hot.
• Only touch the lower enclosure lid during operation.
CAUTION!
Possible damage to health as a result of the effects of radiation!
• Do not stay closer than 20 cm to the inverter for any length of time.
Grounding the PV generator
Comply with the local requirements for grounding the PV modules and the PV generator.
SMA Solar Technology AG recommends connecting the generator frame and other
electrically conductive surfaces in a manner which ensures continuous conduction and
ground these in order to have optimal protection of the system and personnel.

Safety SMA Solar Technology AG
12 STP8-17TL-IEN110121 Installation Guide
2.3 Explanation of Symbols
This section gives an explanation of all the symbols shown on the inverter and on the type label.
2.3.1 Symbols on the Inverter
2.3.2 Symbols on the Type Label
Symbol Explanation
Operation Display.
Shows the operating status of the inverter.
An error has occurred.
Read section 12”Failure search” (page88) to remedy the error.
Bluetooth® Wireless Technology.
Shows the status of Bluetooth Communication.
DC circuit breaker Electronic Solar Switch (ESS)
• If the ESS connects, then the DC circuit is completed.
• To interrupt the DC circuit and disconnect the inverter securely
under load, you have to first pull out the ESS and then remove all
DC plug connectors , as described in section 8”Disconnecting the
Inverter” (page66).
Danger to life due to high voltages in the inverter!
There is residual voltage in the inverter. The inverter requires 10 minutes to
discharge.
• Wait 10 minutes before you open the upper lid or the DC lid.
NOTICE, danger!
• Observe the connection requirements for second protective
conductor in section 6.3.1”Conditions for the AC Connection”
(page26).
Symbol Explanation
Beware of dangerous electrical voltage.
The inverter operates at high voltages. All work on the inverter may be
carried out by qualified personnel only.
Beware of hot surface.
The inverter can become hot during operation. Avoid contact during
operation.

SMA Solar Technology AG Safety
Installation Guide STP8-17TL-IEN110121 13
Observe all documentation accompanying the inverter.
The inverter must not be disposed of with the household waste. For further
information on disposal, see section 13.5”Disposing of the Inverter”
(page98).
CE mark.
The inverter complies with the requirements of the applicable EC
guidelines.
The inverter has no transformer.
Direct Current (DC)
Alternating Current (AC)
Protection rating IP54.
The inverter is protected against dust deposits in the interior and against
splashes of water from all angles.
RAL quality mark for solar products.
The inverter complies with the requirements of the German Institute for
Quality Assurance and Labeling.
Device class label.
The inverter is equipped with a wireless component that complies with the
harmonized standards.
Certified safety
The inverter complies with the requirements of the Equipment and Product
Safety Act in Europe.
Australian mark of conformity
Korean mark of conformity
Symbol Explanation

Product Description SMA Solar Technology AG
14 STP8-17TL-IEN110121 Installation Guide
3 Product Description
The Sunny Tripower is a multi-string inverter which converts the DC current of a PV generator into AC
current. To do this, it is equipped with 2 separate MPP trackers which can be connected to different
PV modules. Power is fed to the public grid in three-phase. Cooling is carried out by the cooling system
OptiCool, whereby a fan is integrated on the underside and on the left side of the enclosure.
In addition, Sunny Tripower is equipped with the features described below.
3.1 Overvoltage Protectors Type II
Alongside the standard, thermally controlled varistors, the Sunny Tripower is equipped with module
plug-in slots for connecting additional overvoltage protectors of type II. The modules are monitored
when plugged in. If a module triggers, a warning will come up on the display or in the external
communication (e.g. Sunny WebBox or Sunny Explorer). This makes it easy to integrate the Sunny
Tripower into a lightning protection concept. The necessary modules are available as retrofit kits for
input A or input A+B.
3.2 Auto-adaptive Identification of String Failure
The Sunny Tripower is equipped with a system which recognizes total failure of individual strings or
part-strings (see following figure). For this system to function reliably, at least 2 string inputs on the
Sunny Tripower must be occupied. With a PV module system of approx. 1 A, monitoring of up to 6
part-strings per string input is possible. One advantage of this system is that its auto-adaptive function
completely eliminates the necessity of any configuration. A learning curve of approx. 14 days from
initial activation is required by the Sunny Tripower in moderate irradiation. If string failure occurs, a
warning will come up on the display or in the external communication (e.g. Sunny WebBox or Sunny
Explorer).

SMA Solar Technology AG Product Description
Installation Guide STP8-17TL-IEN110121 15
3.3 Electronic string fuse
The Sunny Tripower is equipped with an electronic string fuse. It prevent dangerous reverse currents
in the PV generator and thus plays a key role in fire prevention. Reverse currents can occur if
connections are reverse poled during installation or as a result of module defects during operation.
The electronic string fuse recognizes such defects and short-circuits the PV generator. This prevents the
occurrence of reverse currents and thus safeguards both the PV plant and the Sunny Tripower. An
advantage of this method is that conventional fuses at the DC inputs are not necessary. The electronic
solution is entirely maintenance-free and does not require any dimensioning.
In order to get the full benefit of this function, it is crucial to take great care during commissioning of
the device (see Section 6.4”Connection of the PV Generator (DC)” (page31)). The Sunny Tripower
warns about dangerous conditions by beeping and issuing warnings in the display or via external
communication. If electrical installation takes place under conditions of insufficient irradiation (PV
voltage smaller than 188 V), the Sunny Tripower will not have power supply which means that the
protective functions described above will not be active during installation.
3.4 Reactive power feeding and grid safety management
Sunny Tripower inverters are capable of utilizing reactive power and can feed reactive power to the
grid by setting a default value for the displacement power factor (cos ϕ). Moreover, these inverters
are equipped with extended grid management functions, e.g. power limiter and dynamic grid
support. These functions can be activated and configured depending on the requirements of the utility
operator.
Detailed information on the setting parameters of this function is available in the Technical Description
"Sunny Tripower reactive power feeding and grid safety management" in the download area at
www.SMA.de/en in the "Technical Description" category of the respective inverter.

Unpacking SMA Solar Technology AG
16 STP8-17TL-IEN110121 Installation Guide
4 Unpacking
4.1 Scope of Delivery
Check the delivery for completeness and for any visible external damage. Contact your dealer if
anything is damaged or missing.
Object Number Description
A1 Sunny Tripower
B1 Electronic Solar Switch (ESS)
C1 Rear panel (wall mounting bracket)
D1 Set of documents with explanations and certificates
E1 Installation guide, including user manual
F1 Supplement with the factory settings of the inverter
--- 1 Installation guide for RS485 communication module (optional)

SMA Solar Technology AG Unpacking
Installation Guide STP8-17TL-IEN110121 17
4.2 Identifying the Inverter
You can identify the inverter by the type label. The type label is on the right side of the enclosure.
The serial number (Serial no.) and the type (Type / Model) of the product, as well as device-specific
characteristics are specified on the type label.
Contents of Sunclix DC plug connector bag
G10/12 DC plug connector
Sunny Tripower 8000TL/10000TL/12000TL: 10 units
(5 x plus, 5 x minus)
Sunny Tripower 15000TL/17000TL: 12 units (6 x plus, 6 x minus)
H10/12 Sealing plug
Sunny Tripower 8000TL/10000TL/12000TL: 10 units
Sunny Tripower 15000TL/17000TL: 12 units
Contents of inverter accessories bag
I1 Eyebolt (M5) to secure the Sunny Tripower to the rear panel
K2 Cylinder head screws: (M5x10) to fix the enclosure to the rear panel
L1 Cable gland for AC connection
C1 Counternut for cable gland at AC connection
N1 Terminal clamp (M6) for additional ground
O1 Cylinder head screw (M6) for ground terminal
p1 Lock washer (M6) for ground terminal
Q2 Cylinder head screws (M5x20) for upper lid
R2 Lock washers (M5) for lid screws (spares)
Object Number Description

Installing the Device SMA Solar Technology AG
18 STP8-17TL-IEN110121 Installation Guide
5 Installing the Device
5.1 Safety
5.2 Selecting the Mounting Location
Consider the following points when selecting where to install:
• The installation method and location must be suitable for the inverter's weight and dimensions
(see section 14”Technical Data” (page99)).
• Mount on a solid surface.
• It must be possible to access the installation location freely and safely at all times without the
need for additional tools such as scaffolding or lifting platforms. Service actions are otherwise
limited.
DANGER!
Danger to life due to fire or explosion!
Despite careful construction, electrical devices can cause fires.
• Do not mount the inverter on flammable construction materials.
• Do not install the inverter in areas where highly flammable materials are stored.
• Do not install inverters in areas with a risk of explosion.
CAUTION!
Risk of injury due to the heavy weight of the inverter (approx. 65 kg)!
• Take the weight of the inverter into account for transport.
• Select a suitable mounting location and mounting surface.
• When mounting the rear panel, use fastening material suitable for the mounting
surface.
• Two people are needed to mount the inverter.
CAUTION!
Danger of burn injuries due to hot enclosure parts!
• Mount the inverter in such a way that it cannot be touched inadvertently.

SMA Solar Technology AG Installing the Device
Installation Guide STP8-17TL-IEN110121 19
• Vertical installation or tilted backwards by max. 15°.
• The connection area must point downwards.
• Never install the device with a forward tilt.
• Never install the device with a sideways tilt.
• Do not install horizontally.
• Install the inverter at eye level. Given the weight of the device, this will facilitate disassembling
if service work is necessary.
• The ambient temperature should be below 40 °C to ensure optimal operation.
• Do not expose the inverter to direct sunlight to avoid a power reduction due to excessive
heating.
• In living areas, do not mount the unit on plasterboard walls or similar in order to avoid audible
vibrations. The inverter can make noises when in use which may be perceived as a nuisance in
a living area.
• Observe the minimum clearances to walls, other
inverters or objects as shown in the diagram in
order to guarantee sufficient heat dissipation and to
have enough space for removing the Electronic
Solar Switch.
Multiple inverters installed in areas with high ambient temperatures
There must be sufficient clearance between the individual inverters so that the cooling air
from the adjacent inverter is not drawn in.
If necessary, increase the clearances and make sure there is enough ventilation to ensure
sufficient cooling of the inverters.

Installing the Device SMA Solar Technology AG
20 STP8-17TL-IEN110121 Installation Guide
5.3 Mounting the Inverter with Rear Panel
1. Use the rear panel as a drilling template and mark the positions of the drill holes.
2. Mount the rear panel.
Use 1 upper hole on the right and on the left and
the hole in the middle.
Display