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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
RDC325T95W
RDC325T95W
Limited Stock
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Westinghouse
2500
600
BKFD100T
BKFD100T
Limited Stock
From
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Eaton
100
480
BKFD125B
BKFD125B
Limited Stock
From
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Westinghouse
125
480
BKFD125T
BKFD125T
Limited Stock
From
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Westinghouse
125
480
BKFD150T
BKFD150T
Limited Stock
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Cutler Hammer
150
480
BKFD175B
BKFD175B
Limited Stock
From
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Westinghouse
175
480
BKFD175T
BKFD175T
Limited Stock
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Westinghouse
175
480
BKFD200B
BKFD200B
Limited Stock
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Westinghouse
200
480
BKFD225B
BKFD225B
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From
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Eaton
225
480
BKKD250B
BKKD250B
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Eaton
250
480
BKKD250T
BKKD250T
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From
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Eaton
250
480
BKKD300B
BKKD300B
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Cutler Hammer
300
480
BKKD300T
BKKD300T
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Eaton
300
480
BKKD350B
BKKD350B
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From
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Cutler Hammer
350
480
BKKD350T
BKKD350T
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Cutler Hammer
350
480
BKKD400B
BKKD400B
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From
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Westinghouse
400
480
BKKD400T
BKKD400T
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Cutler Hammer
400
480
CA3225WK
CA3225WK
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Westinghouse
225
240
CMDLB3800T35W
CMDLB3800T35W
Limited Stock
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Eaton
800
600
E2JM3250
E2JM3250
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Cutler Hammer
250
1000
E2K3400MWWS41
E2K3400MWWS41
Limited Stock
From
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Cutler Hammer
400
600
E2KE3100WA06U66
E2KE3100WA06U66
Limited Stock
From
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Cutler Hammer
100
600
E2KE3200WU66
E2KE3200WU66
Limited Stock
From
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Eaton
200
600
E2KM3400MNW
E2KM3400MNW
Limited Stock
From
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Westinghouse
400
1000
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.