Molded Case Circuit Breakers (MCCB)

Shop molded case circuit breakers for industrial and commercial distribution systems, panelboards, switchboards, motor control centers, bus plugs, machinery, and enclosed-breaker applications.

Available configurations may include fixed or interchangeable thermal-magnetic trips, electronic LS/LSI/LSIG trip units, magnetic-only motor circuit protectors, 1-, 2-, 3- and 4-pole designs, and common voltage and interrupting ratings. Always verify the exact frame, trip, voltage, poles, kAIC, terminals, mounting, and listing before replacement.

Send the catalog number and label photos to sales@ampstate.com for compatibility review and a formal quote. View all circuit breakers.