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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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Manufacturer
262403
262403
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Legrand
2935.0601
2935.0601
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Lindner
29640
29640
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Schneider Electric
2CCS571103R8467
2CCS571103R8467
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ABB
2CCS863001R0101
2CCS863001R0101
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ABB
2CDS282001R0044
2CDS282001R0044
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ABB
2CSF202001R2400
2CSF202001R2400
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ABB
2CSF204101R4400
2CSF204101R4400
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ABB
2D6UL
2D6UL
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Altech Corp
2G2UM
2G2UM
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Altech Corp
30056-6
30056-6
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Cole Hersee
3120-F311-P7T1-W02D-3A
3120-F311-P7T1-W02D-3A
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E-T-A Circuit Breakers
31640
31640
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Schneider Electric
323MB3
323MB3
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Eaton
34560
34560
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Weidmuller
3DU5
3DU5
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Altech Corp
3GU20M
3GU20M
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Altech Corp
3GU50
3GU50
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Altech Corp
3VA1140-6EE36-0AA0
3VA1140-6EE36-0AA0
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Siemens
3VA1180-6EE32-0AA0
3VA1180-6EE32-0AA0
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Siemens
3VA5160-6ED41-0AA0
3VA5160-6ED41-0AA0
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Siemens
3VA5180-5EF31-0AA0
3VA5180-5EF31-0AA0
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Siemens
3VP5231-0HT00
3VP5231-0HT00
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Siemens
403576
403576
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Legrand
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.