Vertiv
|
Liebert
®
PPC
™
User Manual | Rev. 6 | 03/18 |
16
Figure 11
Electrical connection location for 54-pole Square D or 42-pole GE panelboard, 32" cabinet, top entry/exit
Detail A
Input Circuit Breaker
Input Cable
Conduit Connections
Neutral Connections
Distribution Cables
Neutral(s) connected
to distribution panelboard
neutral busbar
Ground Connections
Distribution Cables
Ground(s) connected
to distribution panelboard
ground busbar
Front View
Without Doors and Access Panels
Distribution Panelboard
Main Input Power Connection
For units without main input junction box,
bus bar for 2 hole lugs (1 3/4" spacing)
with 0.563" dia. holes are provided at line
side terminals of main input circuit breaker
for customer connection of 3-phase power
(See Detail A)
Panelboard Main Circuit Breaker
Factory-Wired
Distribution Cable
Conduit Connection
Cable tray 1 3/32" (27.8mm) holes for
3/4" conduit fittings and 7/8" (22.2mm)
holes for 1/2" conduit fittings provided
for securing optional distribution cables
ø0.375"
(10mm)
1.25" (32mm)
0.437" sq.
(11mm)
(6 places)
ø0.563"
(14mm)
(6 places)
1.25"
(32mm)
Detail C
Ground Busbar
1.75"
(44mm)
1.50"
(38mm)
1.25"
(32mm)
1.75"
(44mm)
1.50"
(38mm)
0.437" sq.
(11mm)
(7 places)
ø0.563"
(14mm)
(8 places)
Detail B
Neutral Busbar
Main Input Neutral Connection
For units without isolation
transformer and without main
input junction box, customer
connection of main input neutral
conductor. (See Detail B)
Safety Ground Connection
For units without main input
junction box, customer connection
of main input safety ground
conductor. (See Detail C)
Ground Electrode
Conductor Connection
Customer connection of
continuous ground electrode
conductor. Not needed on
systems without transformer.
Rear View
Without Doors and Access Panels
PPC15121
Rev. 0
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