How To Guide

© 2005 Schneider Electric USA All Rights Reserved
QO
®
Outdoor Load Centers 40271-891-03
Instruction Bulletin 03/2005
2
ENGLISH
4. Remove the appropriate knockouts for installation of cable
clamps or conduit. See Figure 2.
BOX MOUNTING
Surface Mounting
Fasten the box to the wall with screws or nails, using
the pre-punched mounting holes. See Figure 3.
MAIN CIRCUIT BREAKER OR MAIN LUG WIRING
1. Pull the conductors into the box. Use approved wire
clamps, conduit bushings, or other approved methods
to secure the conductor to the box and to prevent
damage to the conductor insulation.
2. Connect the main and neutral conductors.
a. Install the main and neutral conductors according
to the load center wiring diagram.
b. Connect the service ground, equipment
grounding conductor, or both as required by local electrical code.
c. Torque each terminal to the value specified on the load center wiring diagram attached to
the box.
3. If the main breaker load center
is not used as a service
entrance panel, remove the
brass neutral bonding screw
as shown in Figure 4.
4. Reinstall the line termination
area barrier (for load centers
used as service entrance
panels). Secure barrier with
retaining screws and torque
screws to 35 lb-in (4 N•m).
Table 1: Bolt-On Conduit Hubs for
Outdoor Load Centers
(order separately)
Conduit Hub No.
3/4 in. B-075
1 in. B-100
1-1/4 in. B-125
1-1/2 in. B-150
2 in. B-200
2-1/2 in. B-250
Figure 2: Removing the Knockouts
11003015
11003016
Use the sealing
gaskets provided
if these mounting
locations are used.
Figure 3: Surface Mounting
ON
OFF
Figure 4: Removing the Neutral Bonding Screw
11003017
Bonding
screw
Bonding
screw
Bonding
screw
100-125A 150-225A
Single-phase Load Centers
Three-phase Load Centers