SMA SB 2500TL-21 Installation - Manual (Page 11)

SMA Solar Technology AG Safety
Installation Manual SB25-30TLST-21-IA-en-13 11
WARNING!
Risk of electric shock if DC connectors are pulled out under load
If you disconnect the DC connectors from the inverter under load, an electric arc may
occur, causing electric shock and burns.
• If the inverter is not equipped with an Electronic Solar Switch and the regulations in
the country of installation require an external DC switch-disconnector, you must install
an external DC switch-disconnector.
• Switch off 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
Some parts of the enclosure may become hot during operation.
• Do not touch any parts other than the lower enclosure lid of the inverter during
operation.
NOTICE!
Water and dust intrusion can damage the inverter.
If the inverter is not equipped with an ESS, the electronics in the inverter comply with degree
of protection IP65 when closed. If the inverter is equipped with an ESS, the electronics in
the inverter comply with degree of protection IP65 when the inverter is closed and with the
ESS plugged in. The inverter is then protected against dust and water intrusion. The inverter
connection area complies with degree of protection IP54. It is protected against interior
dust deposits and splash water from all angles.
• When the ESS is not plugged in, measures must be taken to protect the inverter
against dust and water.
• Replug the ESS after carrying out any work on the inverter.
Earthing of the PV array
Comply with local regulations for the earthing of the modules and the PV array.
SMA Solar Technology AG recommends connecting the array frame and other electrically
conductive surfaces so that there is continuous conduction, and earthing them in order to
ensure maximum protection for property and persons.