Installation Manual

2 Safety
2.1 Intended Use
The Antenna Extension Kit is an accessory set for one SMA inverter and optimizes the SMA inverter’s WLAN radio
range.
The inverter still complies with the standard after the product has been installed.
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. 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 appropriate.
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. If you unplug the terminal plate plate with the connected DC conductors from DC-in slot under load, an
electric arc may occur, which can cause an electric shock and burns.
• 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 of the inverter
is switched off, there will be dangerous direct voltage present in the DC conductors on the DC-in connecting
terminal plate in the Connection Unit 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.
Increased electromagnetic radiation through the antenna
During operation, the antenna produces an electromagnetic field and can interfere with other devices (e.g.,
pacemakers) due to electromagnetic interference.
• Persons must not remain closer than 20cm (8in) to the antenna for long periods of time.
2 Safety
SMA Solar Technology America LLC
Installation Manual 9EXTANT-US-40-IA-en-11