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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
CKS3100
CKS3100
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Challenger
100
600
CKS3125
CKS3125
Limited Stock
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Challenger
125
600
CKS3150
CKS3150
Limited Stock
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Challenger
150
600
CKS3175
CKS3175
Limited Stock
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Challenger
175
600
CKS3200
CKS3200
Limited Stock
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Challenger
200
600
CKS3225
CKS3225
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Challenger
225
600
CKS3250
CKS3250
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Challenger
250
600
CKS3300
CKS3300
Limited Stock
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Challenger
300
600
CKS3350
CKS3350
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Challenger
350
600
CKS3400
CKS3400
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Challenger
400
600
CKV2100
CKV2100
Limited Stock
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Challenger
100
600
CKV2125
CKV2125
Limited Stock
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Challenger
125
600
CKV2150
CKV2150
Limited Stock
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Challenger
150
600
CKV2175
CKV2175
Limited Stock
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Challenger
175
600
CKV2200
CKV2200
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Challenger
200
600
CKV2225
CKV2225
Limited Stock
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Challenger
225
600
CKV2250
CKV2250
Limited Stock
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Challenger
250
600
CKV2300
CKV2300
Limited Stock
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Challenger
300
600
CKV2350
CKV2350
Limited Stock
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Challenger
350
600
CKV2400
CKV2400
Limited Stock
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Challenger
400
600
CKV3100
CKV3100
Limited Stock
From
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Challenger
100
600
CKV3100PLH
CKV3100PLH
Limited Stock
From
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Challenger
100
600
CKV3125
CKV3125
Limited Stock
From
Get Price
Challenger
125
600
CKV3125PLH
CKV3125PLH
Limited Stock
From
Get Price
Challenger
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.