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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
G3B040
G3B040
Limited Stock
From
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Siemens
40
240
G3B060
G3B060
Limited Stock
From
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Siemens
60
240
G3B080
G3B080
Limited Stock
From
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ITE
80
240
GB2-DB20
GB2-DB20
Limited Stock
From
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Telemecanique
12
277
GBHS2015D
GBHS2015D
Limited Stock
From
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Cutler Hammer
15
600
GBHS2020D
GBHS2020D
Limited Stock
From
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Cutler Hammer
20
600
GFCB150CS
GFCB150CS
Limited Stock
From
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Cutler Hammer
50
120
GFCBH125
GFCBH125
Limited Stock
From
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Cutler Hammer
25
120
GFXBB115B2
GFXBB115B2
Limited Stock
From
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Cutler Hammer
15
120
GFXBB125B2
GFXBB125B2
Limited Stock
From
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Cutler Hammer
25
120
GFXBB130B2
GFXBB130B2
Limited Stock
From
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Cutler Hammer
30
120
GHBS2015D
GHBS2015D
Limited Stock
From
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Cutler Hammer
15
480
HAGF115
HAGF115
Limited Stock
From
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Challenger
15
120
HBAX2035
HBAX2035
Limited Stock
From
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Westinghouse
35
240
HBAX2045
HBAX2045
Limited Stock
From
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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
HBQ3D030
HBQ3D030
Limited Stock
From
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Challenger
30
240
HBQ3D040
HBQ3D040
Limited Stock
From
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Challenger
40
240
HBQ3D050
HBQ3D050
Limited Stock
From
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Challenger
50
240
HBQ3D060
HBQ3D060
Limited Stock
From
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Challenger
60
240
HBQ3D070
HBQ3D070
Limited Stock
From
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Challenger
70
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.