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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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5SL41036
5SL41036
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5SL41257
5SL41257
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5SL43036
5SL43036
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5SL43037
5SL43037
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5SL45067
5SL45067
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5SU13546KK25
5SU13546KK25
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5SU13561KK32
5SU13561KK32
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Siemens
60214C6025A
60214C6025A
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Schneider Electric
60898
60898
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Proteus
6563
6563
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Legrand
76165-3607
76165-3607
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Molex
7940102645
7940102645
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Weidmuller
7PBVN332
7PBVN332
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Crabtree
8340-T110-K1T1-ALH126-50A
8340-T110-K1T1-ALH126-50A
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Eta Engineering Technology
8530571
8530571
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Schurter
8562/52-2190-100
8562/52-2190-100
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Stahl
8615-046
8615-046
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Bard
91H1225
91H1225
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E-T-A Circuit Breakers
9510-G213-J3F1-B2R2B1-5A
9510-G213-J3F1-B2R2B1-5A
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Eta Engineering Technology
9E1426
9E1426
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Westinghouse
A22040CT-NS
A22040CT-NS
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Challenger
A9F79425
A9F79425
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Schneider Electric
A9F79432
A9F79432
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Schneider Electric
A9F84332
A9F84332
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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.