Safety SMA Solar Technology AG
10 SB33_38-IEN111851 Installation Guide
2.2 Safety Instructions
DANGER!
Danger to life due to high voltages in the inverter.
• All work on the inverter may only be carried out by an electrically qualified person.
CAUTION!
Danger of burn injuries due to hot enclosure parts!
• Do not touch the inverter's enclosure during operation.
NOTICE!
Dust and water in the inverter can damage the device.
Once the Electronic Solar Switch has been pulled out, the inverter only provides protection
rating IP21. The inverter is then no longer protected against water and dust. In order to also
maintain protection rating IP65 during temporary decommissioning, proceed as follows:
• Release and disconnect all DC connectors.
• Open all DC connectors and remove the cables.
• Close all DC inputs with the corresponding DC connectors and the supplied sealing
plugs.
• Securely attach the Electronic Solar Switch again.
Grounding the PV generator
Comply with the local requirements for grounding the modules and the PV generator.
SMA Solar Technology AG recommends connecting the generator frame and other
electricity conducting surfaces in a manner which ensures continuous conductions, and
grounding them in order to achieve maximum protection of the system and personnel.
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