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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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1BU5R
1BU5R
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Altech Corp
1C2UL
1C2UL
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Altech Corp
1CU6R
1CU6R
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2D6UL
2D6UL
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Altech Corp
2G2UM
2G2UM
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Altech Corp
3DU5
3DU5
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Altech Corp
3GU20M
3GU20M
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3GU50
3GU50
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Altech Corp
GFL2B10030SN
GFL2B10030SN
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Altech Corp
GFL2B40300S
GFL2B40300S
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Altech Corp
GFL2C06300S
GFL2C06300S
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Altech Corp
GFL2C201002
GFL2C201002
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Altech Corp
15.906U
15.906U
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Altech Corp
1CU13R
1CU13R
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Altech Corp
2C16DL
2C16DL
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Altech Corp
2DU6L
2DU6L
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Altech Corp
2E10UM
2E10UM
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Altech Corp
2EU10
2EU10
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Altech Corp
3C20UL
3C20UL
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Altech Corp
3C30UL
3C30UL
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Altech Corp
3GU20
3GU20
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Altech Corp
2C03UL
2C03UL
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Altech Corp
2C15UL
2C15UL
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Altech Corp
2CU20R
2CU20R
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Altech Corp
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.