Installation Instructions

© 2012—2014 Schneider Electric All Rights Reserved
S1B33894 QO™ and Homeline™ Load Centers
Rev. 02, 05/2014 Instruction Bulletin
3
ENGLISH
Branch Circuit Breaker Installation and Removal
See separate instruction bulletins included with advanced function circuit breakers and accessories for their installation.
QOP type circuit breakers are only acceptable for use on QO plug-on neutral load centers.
Standard and Tandem Branch Circuit Breakers—Installation
NOTE: 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 branch circuit.
2. Turn OFF (O) the circuit breaker.
3. For QO tandem only, hold the circuit breaker at 30–45° angle.
4. Install the wire terminal end of the circuit breaker onto the mounting rail.
5. Rotate the circuit breaker inward until the plug-on jaw fully engages the bus bar connector. Keep the bottom of the circuit
breaker’s case against the mounting rail. Check the terminal end of the circuit breaker for engagement to the mounting rail.
6. Remove the wire insulation from the branch wire as required. Install the branch wire into the load terminal of the branch circuit
breaker.
7. Torque each branch circuit breaker connection to the value specified on the circuit breaker.
8. Torque each neutral and ground connection to the value specified on the load center wiring diagram attached to the
enclosure.
WARNING
HAZARD OF EQUIPMENT DAMAGE
This equipment is designed and tested by Schneider Electric™ to performance levels which exceed Underwriter’s Laboratories
®
(UL
®
) standards and Mexican Official Standards (NOM) listing.
Use only Square D™ brand circuit breakers and accessories.
Failure to follow these instructions will result in death or serious injury.
NOTE: Class CTL tandem circuit breaker shown, not applicable for metal mounting rail only. Non-
class CTL tandem circuit breaker does not have mounting cam.
Wire
terminal
end
Plug-on
jaw
Bus bar
connector
Mounting rail
(Plastic only)
Plug-on
jaw
Bus bar
connector
Wire
terminal
end
Figure 4: QO Standard Circuit Breaker Figure 5: QO Tandem Circuit Breaker
Mounting rail (Plastic only)
11003006B
Wire
terminal
end
Plug-on
jaw
Bus bar
connector
Mounting
rail
Plug-on
jaw
Bus bar
connector
Wire
terminal
end
Figure 6: Homeline Standard Circuit Breaker
Figure 7: Homeline Tandem Circuit Breaker
Mounting
rail
Released for Manufacturing
Printed on 2016/06/21