SMA MC-Box 6.3 - Manual (Page 23)

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)
E Terminals X1 Generator for connecting the generator (N, grounding conductor)
F Fuse switch-disconnector F2 Loads for connecting the loads (L1, L2, L3)
G Terminals X2 Loads for connecting the loads (N, grounding conductor)
H Terminals X3 PV-System for connecting the PV system
(L1, L2, L3, N, grounding conductor)
I Circuit breaker for connecting the Sunny Island inverters (L)
J Terminals X4 All Clusters for connecting the Sunny Island inverters
(N, grounding conductor)
K Terminal 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