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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
CHFEP130LOK
CHFEP130LOK
Limited Stock
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Westinghouse
30
120
HBAX2035
HBAX2035
Limited Stock
From
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Westinghouse
35
240
HBAX2045
HBAX2045
Limited Stock
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Westinghouse
45
240
HBAX2055
HBAX2055
Limited Stock
From
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Westinghouse
55
240
HBAX3035H
HBAX3035H
Limited Stock
From
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Westinghouse
35
240
HBAX3045H
HBAX3045H
Limited Stock
From
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Westinghouse
45
240
HBAX3055H
HBAX3055H
Limited Stock
From
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Westinghouse
55
240
HMCP0250D0
HMCP0250D0
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Eaton
250
-
HQC3035
HQC3035
Limited Stock
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Cutler Hammer
35
240
HQC3060
HQC3060
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Westinghouse
60
240
HQC3070
HQC3070
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Cutler Hammer
70
240
HQC3080
HQC3080
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Westinghouse
80
240
HQC3090
HQC3090
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Cutler Hammer
90
240
HQC3100
HQC3100
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Westinghouse
100
240
HQNB2015
HQNB2015
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Westinghouse
20
240
HQNB3060
HQNB3060
Limited Stock
From
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Cutler Hammer
60
240
HQNB3070
HQNB3070
Limited Stock
From
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Cutler Hammer
70
240
HQNB3100
HQNB3100
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From
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Cutler Hammer
100
240
QC4015HEH
QC4015HEH
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From
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Westinghouse
15
240
QC4020HEH
QC4020HEH
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Westinghouse
20
240
QC4030HEH
QC4030HEH
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From
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Westinghouse
30
240
QC4040HEH
QC4040HEH
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From
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Westinghouse
40
240
QC4050HEH
QC4050HEH
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From
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Cutler Hammer
50
240
QNBAL2010
QNBAL2010
Limited Stock
From
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Westinghouse
10
240
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.