SMA SB 3300-11 Installation - Manual (Page 10)

Safety SMA Solar Technology AG
10 SB33-38-11-IA-en-62 Installation Manual
2.2 Safety Precautions
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.
• Physically or mentally challenged persons may only perform activities on the inverter
following proper instruction and under supervision.
• Children must not play with the inverter. Children must not have access to an inverter
in operation.
WARNING!
Risk of electric shock when pulling out the DC connectors under load
If you disconnect the DC connectors from the inverter under load, an electric arc may
occur, leading to electric shock and burns.
• If the inverter is not equipped with an Electronic Solar Switch and the regulations
valid at the installation site require an external DC switch-disconnector, install an
external DC switch-disconnector.
• Switch off the DC connector, the AC miniature circuit-breaker and disconnect the
inverter on the DC side before pulling out the DC connectors.
CAUTION!
Risk of burns due to hot enclosure parts
• Do not touch the inverter's enclosure during operation.
NOTICE!
Dust and water intrusion can damage the inverter.
If the inverter is equipped with an Electronic Solar Switch, it will only provide IP21 degree
of protection once the Electronic Solar Switch has been pulled out. The inverter is therefore
no longer protected against water and dust intrusion. In order to maintain the degree of
protection IP65 also during temporary decommissioning, proceed as follows:
• Unlock 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.
• Firmly connect the Electronic Solar Switch again.