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20 Wiring Considerations
Figure 6 Typical Power Wiring
Abbreviations for Circuit Breakers
BFB Bypass Feeder Breaker
BIB Bypass Input Breaker
MBB Maintenance Bypass Breaker
MBD Module Battery Disconnect
MBFB Maintenance Bypass Feeder Breaker
MIB Maintenance Isolation Breaker
RIB Rectifier Input Breaker
THREE BREAKER MAINTENANCE BYPASS SWITCHBOARD
BIB
MBB
MIB
OUTPUT
CB
Static
Switch
Disconnect
Rectifier/
Charger
Controls
Battery
Bypass CB
INPUT
CB
Static
Bypass
Switch
CONTROL POWER
UPS MODULE
Inverter
RIB
BFB
MAIN INPUT
SWITCHGEAR
Critical
Load
AC Output
MBD