SMA GRID CONNECT BOX 12 - Manual (Page 22)

8 Disconnecting the Grid Connect Box and Multicluster System SMA Solar Technology AG
22 GRID-BOX-12-3-20-BE-en-10 Operating Manual
8 Disconnecting the Grid Connect Box and Multicluster System
1. Switch the loads off.
2. Stop the multicluster system at the master of the main cluster (see documentation of the Sunny Island inverter).
3. Switch off all Sunny Island inverters (see documentation of the Sunny Island inverter).
4. Disconnect the main PV distribution board and secure against reconnection.
5. Shut down the generator and secure against reconnection.
6. Disconnect the utility grid from the multicluster system at the grid-connection point and secure against reconnection.
7. Open the Grid Connect Box.
8. In the Grid Connect Box, open all fuse holders and residual-current devices.
10. Disassemble the protective cover (see Section 9.1, page 23).
11. Ensure that the Grid Connect Box is voltage-free.
12. Cover and isolate any adjacent live components.
9. &$87,21
Risk of burns due to hot components
Components and terminals inside the Grid Connect Box can get hot during operation. Touching hot components can
cause burns.
• Prior to removing the protective cover, let the Grid Connect Box cool down.