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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
HFD3175VWH08
HFD3175VWH08
Limited Stock
From
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Eaton
175
600
HFD3175VWH09
HFD3175VWH09
Limited Stock
From
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Eaton
175
600
HFD3200VH08
HFD3200VH08
Limited Stock
From
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Westinghouse
200
600
HFD3200VH09
HFD3200VH09
Limited Stock
From
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Westinghouse
200
600
HFD3200VWH08
HFD3200VWH08
Limited Stock
From
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Westinghouse
200
600
HFD3200VWH09
HFD3200VWH09
Limited Stock
From
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Westinghouse
200
600
HFD3225VH08
HFD3225VH08
Limited Stock
From
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Westinghouse
225
600
HFD3225VH09
HFD3225VH09
Limited Stock
From
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Eaton
225
600
HFD3225VWH08
HFD3225VWH08
Limited Stock
From
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Westinghouse
225
600
HFD3225VWH09
HFD3225VWH09
Limited Stock
From
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Westinghouse
225
600
HKD4100
HKD4100
Limited Stock
From
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Westinghouse
100
600
HKD4100W
HKD4100W
Limited Stock
From
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Cutler Hammer
100
600
HKD4125
HKD4125
Limited Stock
From
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Westinghouse
125
600
HKD4125W
HKD4125W
Limited Stock
From
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Eaton
125
600
HKD4175
HKD4175
Limited Stock
From
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Westinghouse
175
600
HKD4175W
HKD4175W
Limited Stock
From
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Cutler Hammer
175
600
HKD4200
HKD4200
Limited Stock
From
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Westinghouse
200
600
HKD4200W
HKD4200W
Limited Stock
From
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Eaton
200
600
HKD4225
HKD4225
Limited Stock
From
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Cutler Hammer
225
600
HKD4225W
HKD4225W
Limited Stock
From
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Westinghouse
225
600
HKD4250
HKD4250
Limited Stock
From
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Westinghouse
250
600
HKD4250W
HKD4250W
Limited Stock
From
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Cutler Hammer
250
600
HKD4300
HKD4300
Limited Stock
From
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Westinghouse
300
600
HKD4300W
HKD4300W
Limited Stock
From
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Cutler Hammer
300
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.