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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
CFH3040L
CFH3040L
Limited Stock
From
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Challenger
40
600
CFH3045L
CFH3045L
Limited Stock
From
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Challenger
45
600
CFH3050L
CFH3050L
Limited Stock
From
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Challenger
50
600
CFH3060L
CFH3060L
Limited Stock
From
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Challenger
60
600
CFH3070L
CFH3070L
Limited Stock
From
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Cutler Hammer
70
600
CFH3080L
CFH3080L
Limited Stock
From
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Challenger
80
600
CFH3090L
CFH3090L
Limited Stock
From
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Challenger
90
600
CFH3100L
CFH3100L
Limited Stock
From
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Challenger
100
600
CFH3110L
CFH3110L
Limited Stock
From
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Challenger
110
600
CFH3125L
CFH3125L
Limited Stock
From
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Challenger
125
600
CFH3150L
CFH3150L
Limited Stock
From
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Cutler Hammer
150
600
CJ3070
CJ3070
Limited Stock
From
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Challenger
70
600
CJ3090
CJ3090
Limited Stock
From
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Challenger
90
600
CJ3250
CJ3250
Limited Stock
From
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Challenger
250
600
CJH3250F
CJH3250F
Limited Stock
From
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Challenger
250
600
CJS3150
CJS3150
Limited Stock
From
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Challenger
150
600
CK3225
CK3225
Limited Stock
From
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Challenger
225
600
CK3350
CK3350
Limited Stock
From
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Challenger
350
600
CKH3150
CKH3150
Limited Stock
From
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Challenger
150
600
CKH3200
CKH3200
Limited Stock
From
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Challenger
200
600
CKH3225
CKH3225
Limited Stock
From
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Challenger
225
600
CKH3300
CKH3300
Limited Stock
From
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Challenger
300
600
CKH3350
CKH3350
Limited Stock
From
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Challenger
350
600
CL3450
CL3450
Limited Stock
From
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Challenger
450
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.