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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
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
24398
24398
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Merlin Gerin
4
440
24404
24404
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Merlin Gerin
20
440
24405
24405
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Merlin Gerin
25
440
24406
24406
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Merlin Gerin
32
440
24409
24409
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Merlin Gerin
63
440
24670
24670
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Schneider Electric
4
440
24901
24901
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Merlin Gerin
0.75
440
25011
25011
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Merlin Gerin
6
440
25161
25161
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Merlin Gerin
16
440
25400
25400
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Merlin Gerin
25
440
25429
25429
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Merlin Gerin
50
440
27170
27170
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Merlin Gerin
32
480
27254
27254
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Merlin Gerin
100
240
28903
28903
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Merlin Gerin
63
690
28908
28908
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Merlin Gerin
100
750
75151
75151
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Merlin Gerin
20
380
EZC100B3015
EZC100B3015
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Merlin Gerin
15
690
EZC100F3075
EZC100F3075
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Schneider Electric
75
690
EZC100H2015
EZC100H2015
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Merlin Gerin
15
690
NFHFE36016
NFHFE36016
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Square D
16
690
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.