SMA Solar Technology AG 6 Electrical Connection
Operating Manual MC-BOX-6_12-BE-en-20 23
6.1.4 Bottom View of the Multicluster Box 12.3 (without Base)
Object Description
A RJ45 pin connectors for connecting the data cables for control and measuring
signals
B RJ45 pin connector for connecting the data cable for communication
C Cable support rail for strain relief of the cables
D Fuse switch-disconnector F1 Generator for connecting the generator (L1, L2, L3)
ETerminals X1 Generator for connecting the generator (N, grounding conductor)
F Fuse switch-disconnector F2 Loads for connecting the loads (L1, L2, L3)
GTerminals X2 Loads for connecting the loads (N, grounding conductor)
HTerminals X3 PV-System for connecting the PV system
(L1, L2, L3, N, grounding conductor)
I Circuit breaker for connecting the Sunny Island inverters (L)
JTerminals X4 All Clusters for connecting the Sunny Island inverters
(N, grounding conductor)
KTerminal X5 Equipotential Busbar for connecting the grounding conductor
(for grounding the entire multicluster system)
Object Description
A Flange plate with membranes for inserting the connection cables
B Two-part cable feed-through for inserting the data cables
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