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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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MG24988
MG24988
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Schneider Electric
MG24995
MG24995
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$62.20
Schneider Electric
MG24996
MG24996
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Schneider Electric
MG24998
MG24998
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Schneider Electric
MG25001
MG25001
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$95.35
Schneider Electric
MG25004
MG25004
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Schneider Electric
MG25006
MG25006
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$129.60
Schneider Electric
MG25015
MG25015
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Schneider Electric
MG25016
MG25016
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Schneider Electric
MG25118
MG25118
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$46.69
Schneider Electric
MG25125
MG25125
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Schneider Electric
MG25128
MG25128
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Schneider Electric
MG25129
MG25129
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Schneider Electric
MG25131
MG25131
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Schneider Electric
MG25159
MG25159
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Schneider Electric
MG25166
MG25166
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Schneider Electric
MG25187
MG25187
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Schneider Electric
MG25202
MG25202
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Schneider Electric
MG25217
MG25217
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Schneider Electric
MG25219
MG25219
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Schneider Electric
MG25223
MG25223
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Schneider Electric
MG25376
MG25376
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Schneider Electric
MG25420
MG25420
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Schneider Electric
MG25422
MG25422
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Schneider 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.