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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
HKW4315
HKW4315
Limited Stock
From
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Westinghouse
315
690
HKW4400KW
HKW4400KW
Limited Stock
From
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Eaton
400
690
HLDDC20600W
HLDDC20600W
Limited Stock
From
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Cutler Hammer
600
600
HLDDC20700W
HLDDC20700W
Limited Stock
From
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Westinghouse
700
600
HLDDC20800W
HLDDC20800W
Limited Stock
From
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Westinghouse
800
600
HLDDC20900W
HLDDC20900W
Limited Stock
From
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Eaton
900
600
HLDDC21000W
HLDDC21000W
Limited Stock
From
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Westinghouse
1000
600
HLW2315
HLW2315
Limited Stock
From
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Eaton
315
690
HLW2400
HLW2400
Limited Stock
From
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Eaton
400
690
HLW2500
HLW2500
Limited Stock
From
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Westinghouse
500
690
HLW2630
HLW2630
Limited Stock
From
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Westinghouse
630
690
HLW2630KW
HLW2630KW
Limited Stock
From
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Westinghouse
630
690
HLW4400
HLW4400
Limited Stock
From
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Cutler Hammer
400
690
HMCP100K2
HMCP100K2
Limited Stock
From
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Eaton
100
-
HND412WK
HND412WK
Limited Stock
From
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Eaton
1200
600
JDM3070W
JDM3070W
Limited Stock
From
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Westinghouse
70
600
JDM3090W
JDM3090W
Limited Stock
From
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Eaton
90
600
JDM3100W
JDM3100W
Limited Stock
From
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Westinghouse
100
600
JDM3125W
JDM3125W
Limited Stock
From
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Westinghouse
125
600
JDM3150W
JDM3150W
Limited Stock
From
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Cutler Hammer
150
600
JDM3175W
JDM3175W
Limited Stock
From
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Westinghouse
175
600
JDM3200W
JDM3200W
Limited Stock
From
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Westinghouse
200
600
JDM3200WA06
JDM3200WA06
Limited Stock
From
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Westinghouse
200
600
JDM3225A5W
JDM3225A5W
Limited Stock
From
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Westinghouse
225
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.