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Battery Installation
Liebert
®
NX
™
8
Figure 4 Stand-alone battery cabinets, detached from UPS
2.3 Cable Entry
Cables may enter the battery cabinet from the top or bottom. Cable entry is made possible by
installing conduit to the removable plate fitted at the top or bottom. See 3.0 - Installation
Drawings.
2.4 Power Connection
Depending on the site layout, the battery cabinets can be cabled several ways. See Figures 2
through 4.
2.4.1 Connected System
For cabinets ordered as connected (battery cabinets will bolt to each other), the positive and negative
busbars are connected between battery cabinets with the supplied busbar connector extensions. See
Figure 17
2.4.2 Stand-Alone System
For cabinets that are ordered as stand-alone, customer must supply all the interconnecting cables and
hardware. See Table 8 for current ratings and recommended cable sizes.
2.4.3 Attached/Detached System
For battery cabinets that are connecting to a Liebert NX UPS, or Liebert NX Junction Cabinet (see
Figures 2 through 3), cables will run from the positive and negative busbars of the adjacent battery
cabinet to the positive and negative DC connections of UPS or Junction Cabinet.
!
CAUTION
Cables between batteries and the UPS should be run in matched pairs, positive-with-
negative, within each conduit or cable run.
Grouping like-polarity cables together (i.e., positive-with-positive and negative-with-negative)
can cause stress or damage to the cables, conduit or buswork
Stand-
Alone
Junction
Cabinet
The junction cabinet
provides sufficient
conduit landing space
and is required for all
systems in this
configuration.
Liebert
NX
Battery
Cabinet
Liebert
NX
UPS
Additional
Liebert
NX
Battery
Cabinet
Liebert
NX
Battery
Cabinet
Liebert
NX
UPS
Additional
Liebert
NX
Battery
Cabinet
Stand-
Alone
Junction
Cabinet