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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
FJ2B080
FJ2B080
Limited Stock
From
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ITE
80
600
FJ2B110
FJ2B110
Limited Stock
From
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ITE
110
600
FJ3B125MT
FJ3B125MT
Limited Stock
From
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Siemens
125
600
FJ3B150MT
FJ3B150MT
Limited Stock
From
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ITE
150
600
FJ3B175MT
FJ3B175MT
Limited Stock
From
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Siemens
175
600
FJ3B200MT
FJ3B200MT
Limited Stock
From
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Siemens
200
600
FJ3B225MT
FJ3B225MT
Limited Stock
From
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Siemens
225
600
FJ63B070
FJ63B070
Limited Stock
From
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ITE
70
600
HGG1B015L
HGG1B015L
Limited Stock
From
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Siemens
15
347
HGG1B020L
HGG1B020L
Limited Stock
From
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Siemens
20
347
HGG1B025L
HGG1B025L
Limited Stock
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Siemens
25
347
HGG1B030L
HGG1B030L
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Siemens
30
347
HGG1B035L
HGG1B035L
Limited Stock
From
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Siemens
35
347
HGG1B040L
HGG1B040L
Limited Stock
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Siemens
40
347
HGG1B045L
HGG1B045L
Limited Stock
From
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Siemens
45
347
HGG1B050L
HGG1B050L
Limited Stock
From
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Siemens
50
347
HGG1B060L
HGG1B060L
Limited Stock
From
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Siemens
60
347
HGG1B070L
HGG1B070L
Limited Stock
From
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Siemens
70
347
HGG1B080L
HGG1B080L
Limited Stock
From
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Siemens
80
347
HGG1B090L
HGG1B090L
Limited Stock
From
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Siemens
90
347
HGG1B100L
HGG1B100L
Limited Stock
From
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Siemens
100
347
HGG1B110L
HGG1B110L
Limited Stock
From
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Siemens
110
347
HGG1B125L
HGG1B125L
Limited Stock
From
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Siemens
125
347
HQ2100BH
HQ2100BH
Limited Stock
From
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Siemens
100
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.