Vertiv
|
Liebert
®
PPC
™
User Manual | Rev. 6 | 03/18 |
15
Figure 10
Electrical connection locations, 54-pole Square D or 42-pole GE panelboard, 44" cabinet, bottom entry/exit
REAR VIEW
Without Doors and Access Panels
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.
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.
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 Power Connection
For units without main input junction box, busbar
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)
Subfeed Circuit Breakers (Optional
(See Detail B)
DETAIL A
Input Circuit Breaker
Neutral Connections
Distribution cables
neutral(s) connected to
distribution panelboard
neutral busbar.
Ground Connections
Distribution cable
ground(s) connected to
distribution panelboard
ground busbar.
Panelboard Main
Circuit Breaker
Factory-Wired
Distribution
Panelboard
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
.
Input Cable
Conduit Connections
FRONT VIEW
Without Doors and Access Panels
PPC15103
Rev. 0
Содержание Liebert PPC
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