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Figure 13 Liebert NXL two-breaker Maintenance Bypass Cabinet control wire diagram with interlock
LOW VOLTAGE
TERMINAL STRIP
- TB1 -
TB1-16
TB0820
TB1-15
TB1-14
TB1-13
TB0813
TB1-12
TB1-11
TB1-10
TB0811
TB1-9
TB1-8
TB1-7
TB0824
TB1-6
TB1-5
TB1-4
TB1-3
TB1-2
EPO PB SW
TB1-1
®
| Liebert
NXL
Vertiv
02-806708
TB0821
™
™
MBC
250-500kVA Installation Manual |
Connection Points
For UPS Control Board
TB0821
TB0811
TB0813
TB0820
TB0820
3
1
Table 3
Two-breaker control wiring connections with
interlock
From
To
Customer EPO
TB1-1
Push Button
Switch
Customer EPO
TB1-2
Push Button
Switch
TB1-3
TB0821-2
TB1-4
TB0821-3
TB1-5
TB0824-3
TB1-6
TB0824-2
TB1-7
TB0824-1
TB1-8
TB0811-3
TB1-9
TB0811-2
TB1-
TB0811-1
10
TB1-
TB0813-3
11
TB1-
TB0813-2
12
TB1-
TB0813-1
13
Installation Drawings
1
3
3
1
3
1
1
3
Purpose
EPO Signal (N.O.)
Maintenance Bypass
Enable Contacts
UPS REPO Contacts
(Move Jumper J5 to Pos 1
& 2 on the UPS EIB)
MIB Contacts
MBB Contacts
21
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