User manual
Table Of Contents
- Important Safety Instructions
- 1.0 Installation Instructions
- 1.1 Unpacking and Installation
- 1.2 Additional Distribution Mounting and Wiring
- 1.3 Power and Control Wiring
- 1.3.1 Input Power Connections
- Figure 5 Electrical connection location for 23" (584mm) cabinet
- Figure 6 Electrical connection location for 47" (1194mm) cabinet
- Figure 7 Electrical connection location for 47" cabinet with Square D I-Line panelboard
- Table 4 Suggested minimum input wire size data
- Table 5 Main input circuit breaker interrupting rating
- 1.3.2 Junction Box Installation
- Table 6 Main input junction box electrical connections (4 wire)
- Table 7 Main input junction box without transformer electrical connections (5 wire)
- Table 8 Low-voltage (control) junction box dimensions, typical
- Table 9 Main input (power) junction box dimensions, typical
- Figure 8 Low-voltage control junction box connections, typical
- Figure 9 Main input junction box connections, typical
- 1.3.3 System Grounding
- 1.3.4 Grounding Electrode Conductor for Liebert® FPCs With Transformer
- 1.3.5 Output Power Connections
- 1.3.6 Control Wiring Connections
- 1.3.7 Adapter Board
- 1.3.1 Input Power Connections
- 2.0 Equipment Inspection and Startup
- 3.0 Inspection and Startup Checklist
- 4.0 Operating Instructions
- 5.0 Maintenance

Installation Instructions
11
Figure 7 Electrical connection location for 47" cabinet with Square D I-Line panelboard
Front View
Without Doors
and Accent Panel
Subfeed Circuit Breaker (Optional)
Subfeed output power connections.
100-250A lug accepts 6AWG-350kcmil cable,
300-400A two hole lugs accepts 3/0-250kcmil
cable provided for customer connection
of 3-phase power conductors.
Ground Electrode Conductor
Connection.
Customer Connection of
continuous ground electrode
conductor. (not needed on
systems without transformer.)
Rear View
Without Doors &
Accents Panels
Main Input Neutral Connection
For units without isolation
transformer and without main
input junction box, customer
connects main input neutral
directly to neutral busbar
Subfeed Option Output Neutral And
Ground Connections
Customer connects subfeed
neutral and ground directly
to main neutral and ground
busbars
Main Input Power Connection.
For units without main input
junction box, hardware, for lugs
with 3/8" dia hole, is provided at
line side terminals of main input
circuit breaker for customer
connection of 3-phase power
Accuvar Spike Suppression
(Optional)
Ground Connections
Distribution cable grounds
connect to distribution
panelboard ground busbar.
(See Detail B)
Neutral Connections
Distribution cable neutrals
connect to distribution
panelboard neutral busbar.
(See Detail A)
Square "D" I-line
Panelboard
LDMF Interface Board
(If Supplied)
Safety Ground Connection.
Customer connection of
input safety ground conductor
for units without main junction box.
28.4" (721mm)
4.0"
(102 mm)
4.0"
(102 mm)
27.7" (703mm)
.56" Dia.
(14.2mm)
Typ. 22 places
.56" Dia.
(14.2mm)
Typ. 22 places
2.06" (52mm) Typ.
2.06" (52mm) Typ.
2.06"
(52mm)
2.06"
(52mm)
3.28" (83mm)
3.28" (83mm)
Detail B
Output Ground
Busbar
Approx. 1/4" Thick
Detail A
Output Neutral
Busbar
Approx. 1/2" Thick
.88"
(22mm)
.88"
(22mm)
1.75"
(45mm)
1.75"
(45mm)
FPC15202
Rev. 0