SMA MC-Box 6.3 - Manual (Page 35)

SMA Solar Technology AG 8 Disconnecting the Multicluster System from Voltage Sources
Operating Manual MC-BOX-6_12-BE-en-20 35
8 Disconnecting the Multicluster System from Voltage
Sources
1. Switch off all loads.
2. Stop the multicluster system at the master of the main cluster (see documentation of the
Sunny Island).
3. Switch off all Sunny Island inverters (see documentation of the Sunny Island).
4. Disconnect the PV main distribution board and secure against reconnection.
5. Shut down the generator and secure against reconnection.
6. Open the Multicluster Box with the switch cabinet key.
7. In the Multicluster Box, open all circuit breakers of the Sunny Island inverters.
8. Ensure that no voltage is present in the Multicluster Box.
9. Ground the PV main distribution board outside the Multicluster Box and short-circuit.
10. Ground the generator outside the Multicluster Box and short-circuit.
11. Cover and isolate any adjacent live components.