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Molded Case Circuit Breaker

For circuit breaker systems in commercial and industrial facilities, molded case circuit breakers are among the most widely used components for reliable overcurrent protection and electrical distribution. Molded case circuit breakers provide automatic circuit interruption during overload or short circuit conditions, protecting electrical systems and equipment from damage while enabling manual switching control. Electrical.com carries an extensive selection of molded case circuit breakers from all major manufacturers, including new, used, surplus, and re-certified options. These components are designed to meet the diverse needs of commercial buildings, manufacturing facilities, data centers, and industrial power distribution applications.
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EG53C/30-30MA
EG53C/30-30MA
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Fuji Electric
EW100EAG-3P100K
EW100EAG-3P100K
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Fuji Electric
EW100EAGU-3P060B
EW100EAGU-3P060B
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Fuji Electric
EW100EAGU-3P100K
EW100EAGU-3P100K
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Fuji Electric
EW32AAG-3P015B
EW32AAG-3P015B
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Fuji Electric
EW50AAG-3P040B
EW50AAG-3P040B
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Fuji Electric
EW50EAG-3P050A
EW50EAG-3P050A
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Fuji Electric
F51
F51
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Fuji Electric
FG32R/15-30MA
FG32R/15-30MA
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Fuji Electric
SA103CUL/75
SA103CUL/75
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Fuji Electric
SA103RAUL/15L
SA103RAUL/15L
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Fuji Electric
SA103RAUL15
SA103RAUL15
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Fuji Electric
SA103RAUL20
SA103RAUL20
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Fuji Electric
SA103RAUL40
SA103RAUL40
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Fuji Electric
SA104R
SA104R
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Fuji Electric
SA203CUL150
SA203CUL150
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Fuji Electric
SA203CUL225
SA203CUL225
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Fuji Electric
SA203RAUL125
SA203RAUL125
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Fuji Electric
SA32B-5
SA32B-5
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Fuji Electric
SA33-3P10A
SA33-3P10A
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Fuji Electric
SA33BM-1.4
SA33BM-1.4
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Fuji Electric
SA33BM-2
SA33BM-2
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Fuji Electric
SA33C-BB3ASC-030
SA33C-BB3ASC-030
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Fuji Electric
SA33C/30
SA33C/30
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Fuji Electric
Popular Molded Case Circuit Breaker Manufacturers

Electrical.com stocks the largest inventory of molded case circuit breakers in the world, with over 1 million square feet of new, used, surplus, and re-certified MCCBs available for immediate shipment. From standard thermal-magnetic breakers to electronic trip units across all amperage ratings, we have what you need when others say no. Our comprehensive molded case circuit breaker inventory spans all voltage and current ratings, frame sizes, and interrupting capacities from all major manufacturers including current production and discontinued models from legacy suppliers. Available in new factory condition, surplus stock, and re-certified options‚ All backed by our standard 2-year Electrical.com warranty. Our molded case circuit breakers serve critical applications across commercial buildings, industrial facilities, manufacturing plants, data centers, healthcare facilities, distribution panels, motor control centers, switchboards, and power distribution systems.


Whether you're maintaining legacy equipment with obsolete MCCB models or sourcing current production breakers for new installations and retrofits, our 40+ warehouse locations across the US and Canada ensure rapid delivery to minimize your downtime. Need molded case circuit breakers now? Call 877-999-7077 or email [email protected]. With same-day shipping available and the right parts ready to ship from our nearest warehouse location, Electrical.com gets your operations back online fast. We can say yes when others have to say no.