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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
HLDDC20900
HLDDC20900
Limited Stock
From
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Westinghouse
900
600
HLDDC21000
HLDDC21000
Limited Stock
From
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Cutler Hammer
1000
600
HMCC3800F
HMCC3800F
Limited Stock
From
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Westinghouse
800
600
HMCGA3800
HMCGA3800
Limited Stock
From
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Westinghouse
800
600
HMCP4XWS10
HMCP4XWS10
Limited Stock
From
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Westinghouse
400
600
HNC31200
HNC31200
Limited Stock
From
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Westinghouse
1200
600
KDB2175W
KDB2175W
Limited Stock
From
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Cutler Hammer
175
600
LB3400SNW
LB3400SNW
Limited Stock
From
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Westinghouse
400
600
LGKDC3400KSG
LGKDC3400KSG
Limited Stock
From
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Westinghouse
400
600
LGKDC3400KSW
LGKDC3400KSW
Limited Stock
From
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Westinghouse
400
600
LGKDC3630KSG
LGKDC3630KSG
Limited Stock
From
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Eaton
600
600
LGKDC3630KSW
LGKDC3630KSW
Limited Stock
From
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Eaton
600
600
BAB1020C
BAB1020C
Limited Stock
From
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Eaton
20
120
BAB2060B
BAB2060B
Limited Stock
From
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Eaton
60
277
BAB2060C
BAB2060C
Limited Stock
From
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Eaton
60
240
BAB2060HE
BAB2060HE
Limited Stock
From
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Eaton
60
415
ELHMCP250C5
ELHMCP250C5
Limited Stock
From
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Westinghouse
250
600
ELHMCP250D5
ELHMCP250D5
Limited Stock
From
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Westinghouse
250
600
ELHMCP250F5
ELHMCP250F5
Limited Stock
From
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Cutler Hammer
250
600
ELHMCP250G5
ELHMCP250G5
Limited Stock
From
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Eaton
250
600
ELHMCP250J5
ELHMCP250J5
Limited Stock
From
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Cutler Hammer
250
600
ELHMCP250K5
ELHMCP250K5
Limited Stock
From
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Cutler Hammer
250
600
ELHMCP250L5
ELHMCP250L5
Limited Stock
From
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Eaton
250
600
ELHMCP250W5
ELHMCP250W5
Limited Stock
From
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Cutler Hammer
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.