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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
HFD1150
HFD1150
Limited Stock
From
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Eaton
150
277
HFD1150BP10
HFD1150BP10
Limited Stock
From
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Eaton
150
277
HFD2050VL
HFD2050VL
Limited Stock
From
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Cutler Hammer
50
600
HFD3010BP10
HFD3010BP10
Limited Stock
From
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Eaton
10
600
HFD3045BP10
HFD3045BP10
Limited Stock
From
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Eaton
45
600
HFD4015E
HFD4015E
Limited Stock
From
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Westinghouse
15
600
HFD4015V
HFD4015V
Limited Stock
From
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Westinghouse
15
600
HFD4015VL
HFD4015VL
Limited Stock
From
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Cutler Hammer
15
600
HFD4020E
HFD4020E
Limited Stock
From
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Cutler Hammer
20
600
HFD4020V
HFD4020V
Limited Stock
From
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Westinghouse
20
600
HFD4020VL
HFD4020VL
Limited Stock
From
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Cutler Hammer
20
600
HFD4025E
HFD4025E
Limited Stock
From
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Cutler Hammer
25
600
HFD4025V
HFD4025V
Limited Stock
From
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Cutler Hammer
25
600
HFD4025VL
HFD4025VL
Limited Stock
From
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Cutler Hammer
25
600
HFD4030E
HFD4030E
Limited Stock
From
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Eaton
30
600
HFD4030V
HFD4030V
Limited Stock
From
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Westinghouse
30
600
HFD4030VL
HFD4030VL
Limited Stock
From
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Westinghouse
30
600
HFD4035E
HFD4035E
Limited Stock
From
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Westinghouse
35
600
HFD4035V
HFD4035V
Limited Stock
From
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Eaton
35
600
HFD4035VL
HFD4035VL
Limited Stock
From
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Cutler Hammer
35
600
HFD4040E
HFD4040E
Limited Stock
From
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Westinghouse
40
600
HFD4040V
HFD4040V
Limited Stock
From
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Cutler Hammer
40
600
HFD4045E
HFD4045E
Limited Stock
From
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Westinghouse
45
600
HFD4045V
HFD4045V
Limited Stock
From
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Westinghouse
45
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.