Emerson NXL UPS Systems - Manual (Page 14)

Battery Installation
10
Figure 8 Stand-alone battery cabinets, no Module Battery Disconnect, detached from UPS
2.3 Cable Entry
Cables may enter the battery cabinet from either the top or the bottom. Cable entry is made possible
by installing conduit to the removable plate fitted at the top or bottom. See 3.0 - Installation Draw-
ings.
2.4 Power Connection
Depending on the site layout, the Battery cabinets can be cabled several ways. See Figures 2
through 8.
2.4.1 Connected System
For cabinets that have been ordered as connected (battery cabinets will bolt to each other), the posi-
tive and negative busbars can be bolted together using the supplied bus bar connector extensions. See
Figure 24
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 15 for current ratings and recommended cable sizes.
2.4.3 Attached/Detached System
For battery cabinets that are connecting to a Liebert NXL UPS, Liebert NXL MBD cabinet or Liebert
NXL Junction cabinet (see Figures 2 through 6), cables will run from the positive and negative bus-
bars of the adjacent battery cabinet to the positive and negative DC connections of UPS, MBD or
Junction cabinet.
For attached systems (the cabinets bolt to each other) the cables can run internal to the cabinets and
will be supplied.
For detached systems (the cabinets do not bolt to each other), the cables must be run outside the cab-
inets. The customer must supply all the interconnecting cables and hardware. See Table 15 for cur-
rent ratings and recommended cable sizes.
Wide
Junction
Cabinet
Maximum of four battery
cabinets.
The junction cabinet
provides sufficient conduit
landing space and is
required for all systems in
this configuration.
Liebert
NXL
Battery
Cabinet
Liebert
NXL
UPS
Additional
Liebert
NXL
Battery
Cabinet
Liebert
NXL
Battery
Cabinet
Liebert
NXL
UPS
Additional
Liebert
NXL
Battery
Cabinet
Wide
Junction
Cabinet