Liebert Series 600T installation manual Abbreviations for Circuit Breakers

CB1

MBB

MIB

CB3

CB2

CB1

MBB

MIB

CB3

CB2

2-breaker Maintenance Bypass Cabinets for standard (left) and single-input (right) modules.

MBB MBB

BIB

CB1

MIB

CB3

CB2

RIB	MIB
	CB3
CB1	CB2

3-breaker Maintenance Bypass Cabinets for standard (left) and single-input (right) modules.

MBB

BIB

MIB

BYPASS ISO XFMR (OPT.)

CB3

RIB

BYPASS ISO XFMR (OPT.)

MBB

BIB MIB

CB3

CB1 CB2 CB1

CB2

3-breaker and 4-breaker Maintenance Bypass Cabinets for stepdown-voltage applications.

Figure 10. Typical One-Line Diagrams of SMS with optional Maintenance Bypass Cabinets

Abbreviations for Circuit Breakers

BIB	Bypass Isolation Breaker
MBB	Maintenance Bypass Breaker
MIB	Maintenance Isolation Breaker
RIB	Rectifier Input Breaker

18 Installation Manual