Vertiv
|
Liebert
®
PPC
™
User Manual | Rev. 6 | 03/18 |
13
Figure 8
Electrical connection locations, for 54-pole Square D or 42-pole GE panelboard, 32" cabinet, bottom entry/exit
Ground Connections
Distribution Cables
Ground(s) connected
to distribution panelboard
ground busbar
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.
Front View
Without Doors
Optional Subfeed
Breaker
(See Detail D)
Distribution
Panelboard
Input Cable
Conduit
Connections
Rear View
Without Doors
PPC15101
Rev. 0
Ground Electrode
Conductor Connection
Customer connection of
continuous ground electrode
conductor. Not needed on
systems without transformer.
Safety Ground Connection
For units without main input
junction box, customer connection
of main input safety ground
conductor. (See Detail C)
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)
Detail D
Subfeed Circuit Breaker
3-phase Connections
Busbars for 2-hole lugs
(1-3/4" spacing) with ø0.563
hole. Connect ground and
neutral wires to main ground
and neutral busbars
Panelboard Main
Circuit Breaker
Factory-Wired
Optional Subfeed Breaker
(See Detail D)
Main Input Power Connection
For units without main input junction box.
Busbars 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)
1.25"
(32mm)
ø0.375" (10mm)
1.25"
(32mm)
0.437" sq. (11mm)
(6
Places
)
ø0.563" (14mm)
(6
Places
)
Detail C
Ground Busbar
1.75"
(44mm)
1.50"
(38mm)
0.437"
sq
.
(11mm)
(7 Places)
ø0.563" (14mm)
(8 PLACES)
Detail B
Neutral Busbar
1.25"
(32mm)
1.74"
(44mm)
1.50"
(38mm)
Detail A
Input Circuit Breaker
Neutral Connections
Distribution Cables
Neutral(s) connected
to distribution panelboard
neutral busbar
Содержание Liebert PPC
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