Install Instructions
© 2005 Schneider Electric USA All Rights Reserved
40271-887-03 QO
®
 and Homeline
®
 Outdoor Load Centers
03/2005 Instruction Bulletin
3
ENGLISH
3. Install the wire terminal end of the circuit breaker to the mounting rail and push inward until the 
plug-on jaw fully engages the bus bar connector. Check the terminal end of the circuit breaker 
for engagement to the mounting rail.
4. Remove the insulation from the conductor as required. Install the conductor into the load 
terminal of the circuit breaker.
5. Torque each terminal to the value specified on the circuit breaker.
6. Torque each neutral and ground terminal to the value specified on the load center box label 
attached to the inside of the box.
Removal
1. Turn OFF (O) the circuit breaker. Remove the conductors.
2. Lift the plug-on end of the circuit breaker until the circuit breaker jaw disconnects from the bus 
bar. Continue lifting until the terminal end disengages from the mounting rail. See Figure 3 or 
Figure 4, depending on the circuit breaker type.
Tandem Branch Circuit Breakers—Installation
Install QOT and HOMT tandem-type circuit breakers only in single-phase load centers marked for 
use with tandem circuit breakers. Refer to the wiring diagram on the load center for the 
installation location.
1. Determine the wiring or conduit requirements for the circuit breaker.
2. Turn OFF (O) the circuit breaker.
3. Hold the tandem circuit breaker at a 30°– 45° angle.
4. Install the wire terminal end of the circuit breaker to the mounting rail and push inward until the 
plug-on jaw fully engages with the bus bar connector. Check the terminal end of the circuit 
breaker for engagement to the mounting rail.
5. Remove the insulation from the conductor as required. Install the conductor into the load 
terminal of the circuit breaker. 
6. Torque each circuit breaker terminal to the value specified on the circuit breaker.
7. Torque each neutral and ground terminal to the value specified on the load center box label 
attached to the inside of the box.
Removal
1. Turn OFF (O) the circuit breaker. Remove the conductors.
2. Lift the plug-on end of the circuit breaker until the circuit breaker jaw disconnects from the bus 
bar. Continue lifting until the terminal end disengages from the mounting rail. See Figure 5 or 
Figure 6, depending on the circuit breaker type.
Plug-on jaw
Bus bar 
connector
Mounting rail
Wire 
terminal 
end
11003005
Figure 3: QO Branch Circuit Breaker
Figure 4: Homeline Branch Circuit Breaker
Mounting 
rail
Wire 
terminal 
end
Plug-on jaw
Bus bar 
connector
11003006
40271-887-03.fm Page 3 Monday, March 14, 2005 12:15 PM








