Square D AFCI Circuit Breakers
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About Square D AFCI Circuit Breakers
Browse over 30 models of a Square D arc fault breaker designed for residential branch circuits. This page covers miniature form factors across 1- and 2-pole configurations with 15A and 20A ratings, featuring QO, QOB, and Homeline series.
Series on this page
- QO: plug-on miniature breakers for Square D QO load centers.
- QOB: the bolt-on version of the Square D QO breaker.
- Homeline (HOM): plug-on breakers for Homeline load centers; not interchangeable with QO.
Popular part numbers
- QO120PCAFI: 20A AFCI miniature circuit breaker
- QO115PCAFI: 15A AFCI miniature circuit breaker
- HOM120PCAFI: 20A AFCI miniature circuit breaker
- QO115PAF: 15A AFCI miniature circuit breaker
- HOM115PCAFI: 15A AFCI miniature circuit breaker
How to choose
Start with the series printed on your panel label, selecting plug-on QO for QO load centers, bolt-on QOB, or Homeline breakers. Note that Homeline and QO series are not interchangeable. Match the 1- or 2-pole design and the 15 or 20 amp rating. Confirm your panel and breaker type are compatible before ordering.