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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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Part Number
PRICE
Manufacturer
Amperage
Voltage
24103
24103
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Merlin Gerin
16
440
24106
24106
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Square D
32
440
24107
24107
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Merlin Gerin
40
440
24108
24108
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Square D
50
440
24109
24109
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Merlin Gerin
63
440
24339
24339
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Schneider Electric
25
440
24405
24405
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Merlin Gerin
25
440
24406
24406
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Merlin Gerin
32
440
24408
24408
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Square D
50
440
24670
24670
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Schneider Electric
4
440
25011
25011
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Merlin Gerin
6
440
31113
31113
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Square D
400
750
31187
31187
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Square D
250
690
60190
60190
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Square D
6
240
60222
60222
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Schneider Electric
4
240
A9F19416
A9F19416
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Schneider Electric
16
400
A9F19420
A9F19420
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Schneider Electric
20
400
A9F19450
A9F19450
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Schneider Electric
50
400
BDA24030Y4
BDA24030Y4
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Schneider Electric
30
480
BDA24100Y4
BDA24100Y4
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Schneider Electric
100
480
CHOMT3015
CHOMT3015
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Schneider Electric
30
120
EHB340151082
EHB340151082
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Square D
15
480
EHB340351082
EHB340351082
Limited Stock
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Square D
35
480
EHB340401082
EHB340401082
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Square D
40
480
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.