Miniature Circuit Breakers

Miniature circuit breakers (MCBs) protect branch circuits in control panels and distribution boards. Selection is ampere rating, number of poles, trip curve (B for resistive loads, C general purpose, D for high-inrush motor and transformer circuits), interrupting capacity, and standard (UL 489 branch protection vs UL 1077 supplementary).

KKM Solutions lists miniature breakers from Siemens, Eaton and Schneider Electric. Send the part number from the breaker face — or the rating, curve, poles and standard your panel drawing calls for — and we quote the correct unit and accessories (auxiliary contacts, busbars).