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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
HC350
HC350
Limited Stock
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Challenger
50
240
HC350Z
HC350Z
Limited Stock
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Challenger
50
240
HC360
HC360
Limited Stock
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Challenger
60
240
HC360Z
HC360Z
Limited Stock
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Challenger
60
240
HC370
HC370
Limited Stock
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Challenger
70
240
HC370Z
HC370Z
Limited Stock
From
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Challenger
70
240
HC380
HC380
Limited Stock
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Challenger
80
240
HC380Z
HC380Z
Limited Stock
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Challenger
80
240
HC390Z
HC390Z
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Challenger
90
240
HFD3060.RED
HFD3060.RED
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Eaton
-
600
HGB1K015
HGB1K015
Limited Stock
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Siemens
15
347
HGB1K020
HGB1K020
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Siemens
20
347
HGB1K025
HGB1K025
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Siemens
25
347
HGB1K030
HGB1K030
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Siemens
30
347
HGB1K035
HGB1K035
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Siemens
35
347
HGB1K040
HGB1K040
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Siemens
40
347
HGB1K050
HGB1K050
Limited Stock
From
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Siemens
50
347
HGB1K060
HGB1K060
Limited Stock
From
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Siemens
60
347
HGB1K070
HGB1K070
Limited Stock
From
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Siemens
70
347
HGB1K080
HGB1K080
Limited Stock
From
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Siemens
80
347
HGB1K090
HGB1K090
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Siemens
90
347
HGB1K100
HGB1K100
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Siemens
100
347
HGB1K110
HGB1K110
Limited Stock
From
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Siemens
110
347
HGB1K125
HGB1K125
Limited Stock
From
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Siemens
125
347
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.