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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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A9F79320
A9F79320
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Schneider Electric
A9F79340
A9F79340
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Schneider Electric
A9F79463
A9F79463
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Schneider Electric
A9F83120
A9F83120
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Schneider Electric
A9F84103
A9F84103
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Schneider Electric
A9F84116
A9F84116
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Schneider Electric
A9F84120
A9F84120
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Schneider Electric
A9F93450
A9F93450
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Schneider Electric
A9F94204
A9F94204
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Schneider Electric
A9F94210
A9F94210
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Schneider Electric
A9F94316
A9F94316
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Schneider Electric
A9F95332
A9F95332
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$52.38
Schneider Electric
A9K01306
A9K01306
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Schneider Electric
A9K01616
A9K01616
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Schneider Electric
A9N18426
A9N18426
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Schneider Electric
A9N18436
A9N18436
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$449.45
Schneider Electric
A9N18437
A9N18437
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$378.29
Schneider Electric
A9N18446
A9N18446
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Schneider Electric
A9N18456
A9N18456
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Schneider Electric
A9N18489
A9N18489
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Schneider Electric
A9N18501
A9N18501
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Schneider Electric
A9N18523
A9N18523
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Schneider Electric
A9N18594
A9N18594
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Schneider Electric
A9N19651
A9N19651
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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.