Square D QO215 Miniature Circuit Breaker

No. Although both lines are manufactured by Square D, QO and Homeline breakers are not interchangeable. The QO215 requires a QO load center or NQ panelboard, as it uses a different physical bus stab connection than the Homeline series.

The QO215 requires two standard 3/4-inch panel spaces, giving it a total width of 1.5 inches.

Yes, standard QO series breakers include the red Visi-Trip indicator. This provides a clear, visual signal when the breaker has tripped, making it easy to identify the interrupted circuit at a glance.

Yes, this breaker is HACR rated. It is certified for use with heating, air conditioning, and refrigeration equipment that requires this specific standard of overcurrent protection.

The pressure plate terminals require 35.4 lb-in (4 N-m) of torque for 14 to 10 AWG wire, and up to 44.25 lb-in (5 N-m) for 8 AWG wire. Always confirm exact torque specs against the labeling on the side of the physical breaker.

Standard on 15A and 20A QO breakers, Qwik-Open protection is a feature that allows the breaker to trip within 1/60th of a second in the event of a severe short circuit, providing an exceptionally fast response time.

No, the QO215 is a standard thermal-magnetic circuit breaker. It does not include arc-fault (AFCI) or ground-fault (GFCI) protection.

There is no difference in the physical size, compatibility, or technical specifications. The "CP" suffix simply indicates that the breaker is sold in consumer-friendly retail clamshell packaging, while the standard QO215 comes in bulk industrial packaging.