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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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31630
31630
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Schneider Electric
31631
31631
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$1,690.03
Schneider Electric
33071
33071
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$996.34
Schneider Electric
33253
33253
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Schneider Electric
33472
33472
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$2,427.10
Schneider Electric
33564
33564
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$2,251.94
Schneider Electric
33568
33568
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$252.45
Schneider Electric
40101
40101
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Schneider Electric
40105
40105
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Schneider Electric
40515
40515
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Schneider Electric
40767
40767
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Schneider Electric
44792
44792
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Schneider Electric
45379
45379
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Schneider Electric
4CB250/6
4CB250/6
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$39.80
Schneider Electric
50050
50050
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Schneider Electric
60238F
60238F
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$87.81
Schneider Electric
60297F
60297F
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$126.52
Schneider Electric
60298F
60298F
In Stock
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$126.42
Schneider Electric
60299F
60299F
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$143.15
Schneider Electric
65241-100NCX
65241-100NCX
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$774.33
Schneider Electric
78481
78481
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Schneider Electric
940786
940786
In Stock
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$324.80
Schneider Electric
989620
989620
In Stock
From
$101.39
Schneider Electric
992120-P
992120-P
In Stock
From
$31.65
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.