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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
JA3150SV
JA3150SV
Limited Stock
From
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Westinghouse
150
600
JA3150SWV
JA3150SWV
Limited Stock
From
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Westinghouse
150
600
JA3150V
JA3150V
Limited Stock
From
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Westinghouse
150
600
JA3150VW
JA3150VW
Limited Stock
From
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Westinghouse
150
600
JA31750M
JA31750M
Limited Stock
From
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Westinghouse
225
600
JA31750MW
JA31750MW
Limited Stock
From
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Westinghouse
175
600
JA3175A
JA3175A
Limited Stock
From
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Westinghouse
175
600
JA3175AW
JA3175AW
Limited Stock
From
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Westinghouse
175
600
JA3175SV
JA3175SV
Limited Stock
From
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Westinghouse
175
600
JA3175SWV
JA3175SWV
Limited Stock
From
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Westinghouse
175
600
JA3175V
JA3175V
Limited Stock
From
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Westinghouse
175
600
JA3175VW
JA3175VW
Limited Stock
From
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Westinghouse
175
600
JA3200A
JA3200A
Limited Stock
From
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Westinghouse
200
600
JA3200AW
JA3200AW
Limited Stock
From
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Westinghouse
200
600
JA3200SV
JA3200SV
Limited Stock
From
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Westinghouse
200
600
JA3200SVW
JA3200SVW
Limited Stock
From
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Westinghouse
200
600
JA3200V
JA3200V
Limited Stock
From
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Westinghouse
200
600
JA3200VW
JA3200VW
Limited Stock
From
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Westinghouse
200
600
JA3225AW
JA3225AW
Limited Stock
From
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Westinghouse
225
600
JA3225SVW
JA3225SVW
Limited Stock
From
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Westinghouse
225
600
JA3225VW
JA3225VW
Limited Stock
From
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Westinghouse
225
600
JB2070SV
JB2070SV
Limited Stock
From
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Westinghouse
70
600
JB2070SVW
JB2070SVW
Limited Stock
From
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Westinghouse
70
600
JB2070V
JB2070V
Limited Stock
From
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Westinghouse
70
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.