2
Safety
2.1
Intended Use
The Antenna Extension Kit is an accessory set for SMA inverters: By installing the Antenna Extension Kit in an SMA
inverter with WLAN interface, the inverter's radio range can be optimized within the WLAN network.
The Antenna Extension Kit must only be installed in the following SMA inverters:
• STP 50-40 (Sunny Tripower CORE1)
The inverter still complies with the standard after the product has been installed.
The product must only be used in countries for which it is approved or released by SMA Solar Technology AG and the
grid operator.
The product is suitable for indoor and outdoor use.
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 Solar Technology AG. Unauthorized alterations will void guarantee and warranty claims and in most cases
terminate the operating license. SMA Solar Technology AG 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.
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 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.
• Prior to performing any work on the inverter, always disconnect the inverter from voltage sources on the AC and
DC sides as described in the inverter manual. When doing so, note that even if the DC load-break is switched
off, there will be dangerous direct voltage present in the DC conductors of the inverter.
Danger to life due to electric shock from touching an ungrounded product
Touching an ungrounded product can cause a lethal electric shock.
• Ensure that the product is integrated in the existing overvoltage protection.
2 Safety
SMA Solar Technology AG
Installation Manual
EXTANT-40-IA-en-10
6
