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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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MG23213
MG23213
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Schneider Electric
MG24046
MG24046
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Schneider Electric
MG24206
MG24206
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Schneider Electric
MG24349
MG24349
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Schneider Electric
MG24657
MG24657
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Schneider Electric
MG24668
MG24668
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Schneider Electric
MG24980
MG24980
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Schneider Electric
MG25003
MG25003
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Schneider Electric
MG25666
MG25666
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Schneider Electric
MG25839
MG25839
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Schneider Electric
MG25849
MG25849
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Schneider Electric
MG27635
MG27635
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Schneider Electric
MG29003
MG29003
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Schneider Electric
MG29770
MG29770
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Schneider Electric
MG31630
MG31630
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Schneider Electric
MG48019
MG48019
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Schneider Electric
MG50460
MG50460
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Schneider Electric
MG60191
MG60191
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Schneider Electric
MG60204
MG60204
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Schneider Electric
MG60249
MG60249
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Schneider Electric
MGP0161L2
MGP0161L2
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Schneider Electric
MGP0161R
MGP0161R
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Schneider Electric
MPW25-3-U020
MPW25-3-U020
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WEG
MS2-B-64-620-2-1BA-A-0CA
MS2-B-64-620-2-1BA-A-0CA
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Carling Technologies
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.