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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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3VL7712-1AA36-0AA0
3VL7712-1AA36-0AA0
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3WL9111-0AD13
3WL9111-0AD13
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5SV3111-6
5SV3111-6
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5SY41328
5SY41328
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5SY42158
5SY42158
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5SY43045
5SY43045
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5SY43406
5SY43406
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5SY43506
5SY43506
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5SY44168
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5SY44207
5SY44207
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5SY45028
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5SY46027
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5SY46107
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5SY63137
5SY63137
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5SY63157
5SY63157
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5SY63506
5SY63506
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5SY64047
5SY64047
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5SY65136
5SY65136
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5SY73327
5SY73327
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68C1478G10
68C1478G10
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Eaton
20
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AQBA101
AQBA101
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Cutler Hammer
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BA3050
BA3050
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Cutler Hammer
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BDA36035YP
BDA36035YP
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Square D
35
600
ED4 HARDWARE
ED4 HARDWARE
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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.