Miniature Circuit Breakers

Miniature circuit breakers are the compact DIN-rail breakers that protect branch circuits and control wiring, resetting after a trip instead of being replaced and taking up a fraction of a molded-case footprint. Contractors add one when a control or lighting circuit needs its own protection on the rail, when a nuisance-tripping breaker has the wrong curve for its load, or when a panel needs more branches than its existing ways allow.

 

As an authorized electrical distributor for multiple manufacturers, we stock miniature circuit breakers from ABB, Bussmann and more across competing lines, in a range of amperage ratings, frame types and auxiliary contact ratings, so you can match the curve and rating the branch requires, compare frame types and auxiliary ratings across brands, and add protection on the rail you already have. Same-day shipping on in-stock items ordered before 2pm local time.