Vertiv
| Liebert
®
NXL
™
500-750kVA UPS Installation Manual |
14
Module Output
Breaker
(MOB) Form C
TB0815
1
CB aux. contact, closed = CB is closed
14AWG/500
ft.
(150m)
2
CB aux. contact, common
3
CB aux. contact, closed = CB is open
1.
For 1+N systems with a maintenance Bypass, these auxiliary contacts must be run to each module from an
isolated source.
2.
For 1+N systems, these breaker Aux contacts go to the UPS that they are associated with.
3.
Key Status Input can be either Form-C, N.O. or N.C. contact
Table 3
UPS control contacts with global maintenance bypass
(continued)
Item
Termin
al
Block
Pi
n
Connects to
(Description of External Item)
Wire Size/
Max
Length
