Figure 15 Paralleling Cabinet With Input And Bypass Circuit Breakers; Figure 16 Paralleling Cabinet With Input, Bypass And Distribution Circuit Breakers - Liebert NX User Manual

Figure 15 Paralleling cabinet with input and bypass circuit breakers

480V, 3W
System Input
RIB = Rectifier Input
Breaker
IOB = Inverter Output
Breaker
MBB = Maintenance
Bypass Breaker
MIB = Maintenance
Isolation Breaker
LDB = Load
Distribution
Breaker

Figure 16 Paralleling cabinet with input, bypass and distribution circuit breakers

480V, 3W
System Input
® ™
Liebert NX
Liebert NX UPS (40-200kVA)
AC
RIB 1
480V DC
Battery
Input
RIB 2
RIB 3
RIB 4
MBB
Liebert NX UPS (40-200 kVA)
Bypass
Static
Switch
AC
RIB 1
DC
DC
DC
480V DC
Battery Input
UPS Module 2
RIB 2
UPS Module 3
RIB 3
UPS Module 4
RIB 4
MBB
Bypass
Static
Switch
DC
DC AC
DC
DC
UPS Module 2
UPS Module 3
UPS Module 4
MIB
DC
IOB 1
AC
IOB 2
IOB 3
IOB 4
31
480V, 3W
System Output
MOB
IOB 1
IOB 2
IOB 3
IOB 4
480V, 3W
LDB 1
User Supplied
Plug-In Output
Breakers
480V, 3W
LDB N
Options
Output
Output