Wiring Of The Battery Modules - SMA COMMERCIAL STORAGE SOLUTION 30 System Manual

8 Electrical Connection
8.7.3

Wiring of the Battery Modules

Figure 31: Wiring of the battery modules within the battery cabinet (example with ten battery modules)
Position Designation
A
DC cable for connecting the battery management system (BATTERY-) to the lowermost bat-
tery module
B
DC cable for connecting the battery management system (BATTERY+) to the uppermost bat-
tery module
C DC cable for serial wiring of the individual battery modules
D Battery communication
E Order in the battery string
78 ESSX-20-SH-en-10
SMA Solar Technology AG
System Manual