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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
JDC3225V
JDC3225V
Limited Stock
From
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Westinghouse
225
600
JDC3250S41
JDC3250S41
Limited Stock
From
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Westinghouse
250
600
JG3175
JG3175
Limited Stock
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Eaton
175
600
KA2070A
KA2070A
Limited Stock
From
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Westinghouse
70
600
KA2070K
KA2070K
Limited Stock
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Westinghouse
70
600
KA2070SV
KA2070SV
Limited Stock
From
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Westinghouse
70
600
KA2070SVW
KA2070SVW
Limited Stock
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Westinghouse
70
600
KA2070V
KA2070V
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Westinghouse
70
600
KA2070VW
KA2070VW
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From
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Westinghouse
70
600
KA2080K
KA2080K
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Westinghouse
80
600
KA2090A
KA2090A
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Westinghouse
90
600
KA2090K
KA2090K
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Westinghouse
90
600
KA2090SV
KA2090SV
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Westinghouse
90
600
KA2090SVW
KA2090SVW
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Westinghouse
90
600
KA2090V
KA2090V
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Westinghouse
90
600
KA2090VW
KA2090VW
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Westinghouse
90
600
KA2100A
KA2100A
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Westinghouse
100
600
KA2100K
KA2100K
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From
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Westinghouse
100
600
KA2100SV
KA2100SV
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Westinghouse
100
600
KA2100SVW
KA2100SVW
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From
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Westinghouse
100
600
KA2100V
KA2100V
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Westinghouse
100
600
KA2100VW
KA2100VW
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From
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Westinghouse
100
600
KA2125A
KA2125A
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Westinghouse
125
600
KA2125SV
KA2125SV
Limited Stock
From
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Westinghouse
125
600
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.