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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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MG24280
MG24280
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Schneider Electric
MG24284
MG24284
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$57.29
Schneider Electric
MG24286
MG24286
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Schneider Electric
MG24287
MG24287
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$122.81
Schneider Electric
MG24288
MG24288
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Schneider Electric
MG24295
MG24295
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Schneider Electric
MG24296
MG24296
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Schneider Electric
MG24300
MG24300
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Schneider Electric
MG24302
MG24302
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Schneider Electric
MG24306
MG24306
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$51.62
Schneider Electric
MG24309
MG24309
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Schneider Electric
MG24331
MG24331
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Schneider Electric
MG24333
MG24333
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$79.32
Schneider Electric
MG24338
MG24338
In Stock
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$47.89
Schneider Electric
MG24339
MG24339
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Schneider Electric
MG24340
MG24340
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$172.00
Schneider Electric
MG24343
MG24343
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Schneider Electric
MG24348
MG24348
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$72.62
Schneider Electric
MG24354
MG24354
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Schneider Electric
MG24355
MG24355
In Stock
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$62.57
Schneider Electric
MG24356
MG24356
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$404.76
Schneider Electric
MG24357
MG24357
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Schneider Electric
MG24365
MG24365
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Schneider Electric
MG24366
MG24366
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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.