SMA SB 240 - Manual (Page 48)

9 Disconnecting the Inverter from Voltage Sources
Prior to performing any work on the inverter, always disconnect it from all voltage sources as
described in this section. Always adhere to the prescribed sequence.
If you want to disconnect several inverters from voltage sources, you must repeat the following
procedure for each inverter.
Damage to the inverter due to moisture ingress
When the inverter is open, moisture can penetrate and cause damage to the inverter. The
tightness is no longer intact and the function of the inverter cannot be guaranteed.
• Never open the inverter.
Procedure:
1.
Danger to life due to electric shock
Do not disconnect the AC connectors under load.
• Disconnect the circuit breaker and secure it against reconnection.
• Cover the PV modules.
2. Release and remove all connected AC
connectors from the inverter. Hook a flat-blade
screwdriver (blade width: 4 mm) into the wide
slot on the plug and lever it open. At the same
time, pull out the AC connector without pulling
the cable.
3. Remove the DC plug from the inverter. Do not
pull on the DC cables.
4. To loosen the protective cap, remove the security
seal, if necessary, and hook a flat-blade
screwdriver (blade width: 4 mm) into the wide
slot and and lever it open. At the same time, pull
out the protective cap.
9 Disconnecting the Inverter from Voltage Sources SMA Solar Technology AG
Installation Manual SMA-SB240-IA-en-12 48