Figure 7 Remote Output Breaker Diagram; Table 6 Remote Iob Contacts From Remote Breaker To Scc Iob Cb Interface Board - Emerson Liebert NXL Installation Manual

Figure 7 Remote Output Breaker diagram
Inside Switchgear
A
B
C
5A 5A
1
N
2
IOB UVR
Coil
(48VDC)
IOB Status
Contacts
Fuses should be 5A class CC or J type time delay
1
fuse
See Table 13 for required current ratings.
Table 6 Remote IOB contacts from remote breaker to SCC IOB CB interface board
Terminal Designation
From
Remote Breaker
Contacts
Remote IOB contacts from remote breaker to SCC IOB CB interface board
Remote Breaker Motor
Operator Contacts
Remote IOB contacts from remote breaker to SCC IOB CB interface board
Remote Breaker
Voltage Sense
E
IOB
5A
IOB-1 V_CB_A
V_CB_B
V_CB_C
120-240 Vac
(supplied by
switchgear vendor )
IOB
Electrical
Operator
Close
120 -240 Vac
Electrical operator power provided by switchgear
2
vendor and shall be powered from UPS side of IOB
To
TB1101-1
TB1101-2
TB1101-3
TB1101-4
TB1101-5
TB1102-2
TB1102-5
TB1-1
TB1-2
TB1-3
Control Cable Connections and Communication
Output Customer
TB2
OUT_LINE_A
TB2-1
OUT_LINE_B
TB2-2
OUT_LINE_C
TB2-3
OUT_LINE_N
TB2-4
IOB-x
5_MTR_OP_CLOSE
2_MTR_OP_ENABLE
5 CB1_COIL
4 CB1_COIL_RTN
3_CB1_NO (CB CLOSED )
2_CB1_NC (CB OPEN )
1_CB1_COM
Signal Name
IOB aux. common
IOB aux. N.C. (closed = CB is open)
IOB aux. N.O. (closed = CB is closed)
IOB trip coil (-)
IOB trip coil (+)
AC line
Motor operator close
Voltage sense PH A
Voltage sense PH B
Voltage sense PH C
11
Inside UPS Cabinet
To UPS
Connections
OUT_LOAD_A
LOAD
LINE
A A
OUTPUT EMI
OUT_LOAD_B
B B
FILTER
OUT_LOAD_C
C C
OUT_LOAD_N
N
N
TB1102
Circuit Breaker Interface
Board
02-806711 -01
TB1101
Wire Size/
Max Length
#14AWG/
500ft. (300m)
#14AWG/
500ft. (300m)
#14AWG/
500ft. (300m)
® ™
Liebert NXL System Control Cabinet