SMA MC-Box 6.3 - Manual (Page 29)

SMA Solar Technology AG 6 Electrical Connection
Operating Manual MC-BOX-6_12-BE-en-20 29
Cable requirement:
☐ Conductor material: copper
Procedure:
1. Prepare the connection cables (see Section 6.2 "Preparing the Cables", page 24).
2. Connect the grounding conductor and N of all Sunny Island inverters to the terminal X4
All Clusters as labeled.
3. Connecting the main cluster:
– Connect L of the master to L1 of the circuit breaker F4.1 Main Cluster.
– Connect L of Slave 1 to L2 of the circuit breaker F4.2 Main Cluster.
– Connect L of Slave 2 to L3 of the circuit breaker F4.3 Main Cluster.