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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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BR2D1UC
BR2D1UC
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SU1C4UC
SU1C4UC
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6720005320
6720005320
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6720005349
6720005349
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BR1D05AC
BR1D05AC
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BR1D13AC
BR1D13AC
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BR2C30AC
BR2C30AC
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BR2C40UC
BR2C40UC
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BR2D5AC
BR2D5AC
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CB4201-10-5AMP/TS35
CB4201-10-5AMP/TS35
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CB4201-10.10.0A/TS32
CB4201-10.10.0A/TS32
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CB4202-10.15A/TS35
CB4202-10.15A/TS35
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2477930000
2477930000
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2478120000
2478120000
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2480040000
2480040000
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6720005388
6720005388
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7940100394
7940100394
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7940102582
7940102582
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9104153500
9104153500
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9104353500
9104353500
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BR1C16UC
BR1C16UC
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BR1C5UC
BR1C5UC
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BR1D40AC
BR1D40AC
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BR2D60UC
BR2D60UC
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Weidmuller
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.