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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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19661
19661
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$122.26
Schneider Electric
21024
21024
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21111
21111
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Schneider Electric
21325
21325
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Schneider Electric
21348
21348
In Stock
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$5.54
Schneider Electric
21607
21607
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Schneider Electric
21845
21845
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Schneider Electric
23088
23088
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Schneider Electric
24124
24124
In Stock
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$31.50
Schneider Electric
242-2362
242-2362
In Stock
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$2,314.74
Schneider Electric
24236
24236
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Schneider Electric
24264
24264
In Stock
From
$35.32
Schneider Electric
24305
24305
In Stock
From
$46.69
Schneider Electric
24309
24309
In Stock
From
$11.62
Schneider Electric
24310
24310
In Stock
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$12.62
Schneider Electric
24311
24311
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Schneider Electric
24325
24325
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Schneider Electric
244-9779
244-9779
In Stock
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$9,730.71
Schneider Electric
24431
24431
In Stock
From
$57.09
Schneider Electric
24435
24435
In Stock
From
$59.84
Schneider Electric
24438
24438
In Stock
From
$27.86
Schneider Electric
24442
24442
In Stock
From
$71.74
Schneider Electric
24444
24444
In Stock
From
$66.52
Schneider Electric
24456
24456
In Stock
From
$67.66
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.