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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
CKV3150
CKV3150
Limited Stock
From
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Challenger
150
600
CKV3150PLH
CKV3150PLH
Limited Stock
From
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Challenger
150
600
CKV3175
CKV3175
Limited Stock
From
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Challenger
175
600
CKV3175PLH
CKV3175PLH
Limited Stock
From
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Challenger
175
600
CKV3200
CKV3200
Limited Stock
From
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Challenger
200
600
CKV3200PLH
CKV3200PLH
Limited Stock
From
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Challenger
200
600
CKV3225
CKV3225
Limited Stock
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Challenger
225
600
CKV3225PLH
CKV3225PLH
Limited Stock
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Challenger
225
600
CKV3250
CKV3250
Limited Stock
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Challenger
250
600
CKV3250PLH
CKV3250PLH
Limited Stock
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Challenger
250
600
CKV3300
CKV3300
Limited Stock
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Challenger
300
600
CKV3300PLH
CKV3300PLH
Limited Stock
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Challenger
300
600
CKV3350
CKV3350
Limited Stock
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Challenger
350
600
CKV3350PLH
CKV3350PLH
Limited Stock
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Challenger
350
600
CKV3400
CKV3400
Limited Stock
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Challenger
400
600
CKV3400F
CKV3400F
Limited Stock
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Challenger
400
600
CKV3400PLH
CKV3400PLH
Limited Stock
From
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Challenger
400
600
CL3300
CL3300
Limited Stock
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Challenger
300
600
CL3350
CL3350
Limited Stock
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Challenger
350
600
CLC3300
CLC3300
Limited Stock
From
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Challenger
300
600
CLC3350
CLC3350
Limited Stock
From
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Challenger
350
600
CLC3400
CLC3400
Limited Stock
From
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Challenger
400
600
CLC3450
CLC3450
Limited Stock
From
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Challenger
450
600
CLC3500
CLC3500
Limited Stock
From
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Challenger
500
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.