Cable Connections; Figure 3 Input Busbars; Figure 4 Battery Fuses And Connections - Liebert NX 10kVA Installation Manual

2.1.4

Cable Connections

The rectifier input, bypass and output are accessible from the left side of the unit for installation. All
require lug type terminations. They are connected to busbars on the left side of the NX and below the
switch, as shown in Figure 3. These busbars are accessible when the left side panel is removed. Bus-
bars to connect external batteries are accessible from the front of the UPS.
NOTE
External battery connection access requires removal of a protective panel on the lower front of
the UPS to the left of the bottom two battery shelves.
Figure 3 Input busbars
Output Busbars
(Phases are
indicated by
letters below the
bars)
The internal batteries are connected with Anderson connectors inside the battery compartment. The
batteries are connected to fuses to protect the NX and connected equipment (see Figure 4).
Figure 4 Battery fuses and connections
C B A
OUTPUT
150A 500V AC/DC
Bussmann
MADE IN USA
11
C B A
BYPASS
Internal battery input
150A 500V AC/DC
Bussmann
Battery fuses
MADE IN USA
(fuses are behind
access plate on
front of UPS; see
Note on page 11)
Electrical Connections
Remove these links
for dual input
configuration and
wire UPS Main input
directly to CB1
Rectifier Input
Busbars
(Phases are
indicated by
letters below the
bars)
connections