Square D 20 Amp Circuit Breakers
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About Square D 20 Amp Circuit Breakers
This collection contains over 350 Square D 20 amp breaker products, including QO, QOB, and Homeline series. It covers 1-, 2-, 3-, and 4-pole molded case and miniature types with AFCI, GFCI, GFEP, and dual function models.
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.
- FA, FAL, FH: F-frame molded case breakers.
- BDA, BGA: PowerPact B-frame molded case breakers.
- Also on this page: QOU and EHB series.
Popular part numbers
- QOB120: 20A, 1-pole miniature circuit breaker
- QO120: 20A, 1-pole miniature circuit breaker
- QOB220: 20A, 2-pole miniature circuit breaker
- EDB34020: 20A, 3-pole molded case circuit breaker
- QO120GFI: 20A GFCI miniature circuit breaker
How to choose
Start with the breaker series printed on the panel label; Homeline and QO breakers are not interchangeable. Next, match the 1-, 2-, 3-, or 4-pole count and the 20 amp rating. For specialized circuits, select the AFCI, GFCI, GFEP, or dual function type. Confirm your panel and breaker type are compatible before ordering.