Reference Manual

4(6)
EN/LZT 720 0276 R1A
3 Function Description
Supervision
Module
Shunt Contactor
TM and EC
supply
TM
50A
EPC bus
(opto)
Battery
200A
P008644B
RBS DC
distribution
Contactor
Figure 1 Block diagram of BFU-22
The BFU consists of the following blocks:
• Contactors
• Circuit breakers
• Shunt
• TM and EC supply
• Supervision module
3.1 Contactor
The contactor is used to disconnect the batteries from the system. The SM
controls the contactor.