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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
CHLD3600T57WPN
CHLD3600T57WPN
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Eaton
600
600
CHLD3600T57WZG
CHLD3600T57WZG
Limited Stock
From
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Westinghouse
600
600
CHLD3600T57WZGP
CHLD3600T57WZGP
Limited Stock
From
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Westinghouse
600
600
CHLD3600T77W
CHLD3600T77W
Limited Stock
From
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Westinghouse
600
600
CHMDLB3800T32W
CHMDLB3800T32W
Limited Stock
From
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Westinghouse
800
600
CHMDLB3800T33W
CHMDLB3800T33W
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Westinghouse
800
600
CHMDLB3800T35W
CHMDLB3800T35W
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Cutler Hammer
800
600
CHMDLB3800T36W
CHMDLB3800T36W
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Cutler Hammer
800
600
CKD3125T106W
CKD3125T106W
Limited Stock
From
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Eaton
125
600
CKD3125T107W
CKD3125T107W
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Cutler Hammer
125
600
CKD3125T52W
CKD3125T52W
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Westinghouse
125
600
CKD3125T52WPN
CKD3125T52WPN
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Westinghouse
125
600
CKD3125T52WZG
CKD3125T52WZG
Limited Stock
From
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Eaton
125
600
CKD3125T52WZGP
CKD3125T52WZGP
Limited Stock
From
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Westinghouse
125
600
CKD3125T56WPN
CKD3125T56WPN
Limited Stock
From
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Eaton
125
600
CKD3125T56WZG
CKD3125T56WZG
Limited Stock
From
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Westinghouse
125
600
CKD3125T56WZGP
CKD3125T56WZGP
Limited Stock
From
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Westinghouse
125
600
CKD3125T57W
CKD3125T57W
Limited Stock
From
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Westinghouse
125
600
CKD3125T57WPN
CKD3125T57WPN
Limited Stock
From
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Westinghouse
125
600
CKD3125T57WZG
CKD3125T57WZG
Limited Stock
From
Get Price
Westinghouse
125
600
CKD3125T57WZGP
CKD3125T57WZGP
Limited Stock
From
Get Price
Eaton
125
600
CKD3250T106W
CKD3250T106W
Limited Stock
From
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Eaton
250
600
CKD3250T107W
CKD3250T107W
Limited Stock
From
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Westinghouse
250
600
CKD3250T52W
CKD3250T52W
Limited Stock
From
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Westinghouse
250
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.