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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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MG25586
MG25586
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Schneider Electric
MG25592
MG25592
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Schneider Electric
MG25602
MG25602
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Schneider Electric
MG25614
MG25614
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Schneider Electric
MG25850
MG25850
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Schneider Electric
MG25876
MG25876
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Schneider Electric
MG25889
MG25889
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Schneider Electric
MG28103
MG28103
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Schneider Electric
MG28924
MG28924
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Schneider Electric
MG29585
MG29585
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Schneider Electric
MG29600
MG29600
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Schneider Electric
MG29635
MG29635
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Schneider Electric
MG31154
MG31154
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Schneider Electric
MG31621
MG31621
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Schneider Electric
MG32708
MG32708
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Schneider Electric
MG33480
MG33480
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Schneider Electric
MG44500
MG44500
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Schneider Electric
MG44666
MG44666
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Schneider Electric
MG47637
MG47637
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$101.15
Schneider Electric
MG56193
MG56193
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Schneider Electric
MG60126
MG60126
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$45.63
Schneider Electric
MG60128
MG60128
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$41.06
Schneider Electric
MG60152
MG60152
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$161.46
Schneider Electric
MG60174
MG60174
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$103.53
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.