Find over 4200 3 pole circuit breakers designed for three-phase commercial and industrial power systems. This collection covers 3-pole miniature and molded case configurations rated from 15A to 800A, including E-frame, F-frame, and GFCI specialty types.
Series on this page
QOB: the bolt-on version of the Square D QO breaker.
Start with the breaker series printed on your panel label, matching the correct miniature or molded case family. Match the 3-pole configuration and select the correct amp rating ranging from 15A to 800A. Choose FA or FAL series for F-frame applications, EDB or EGB for E-frame panels, or THQB and QOB bolt-on models. Confirm your panel and breaker type are compatible before ordering.