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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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Manufacturer
EW100EAGU-3P080
EW100EAGU-3P080
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Fuji Electric
EW125RAGU-3P125
EW125RAGU-3P125
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Fuji Electric
EW250RAGU-3P225
EW250RAGU-3P225
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Fuji Electric
F 374-25/0.03
F 374-25/0.03
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ABB
F204A-63/0.1
F204A-63/0.1
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ABB
F204AC-80/0.1
F204AC-80/0.1
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ABB
F3P-150
F3P-150
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Eaton
FDB20409
FDB20409
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Cutler Hammer
FDS36TD100GT
FDS36TD100GT
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General Electric
FHHA04EB1ST
FHHA04EB1ST
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Square D
FHL36045-BLK
FHL36045-BLK
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Square D
GD22K15
GD22K15
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Eaton
GD3015K
GD3015K
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Eaton
GJ3-G3-DU-W-150-240AC-1
GJ3-G3-DU-W-150-240AC-1
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Eaton
GMCBU-3D-20
GMCBU-3D-20
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Automation Direct
GMT15U
GMT15U
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ABB
GMT20U
GMT20U
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ABB
GTEC-2-D16
GTEC-2-D16
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Techna
HCA3P40
HCA3P40
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Federal Electric
HCWM5486-12U 1212727646001
HCWM5486-12U 1212727646001
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Schneider Electric
HH83XB451-B
HH83XB451-B
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Airpax
HH83XB452-B
HH83XB452-B
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Airpax
HLD3600WLT3600T
HLD3600WLT3600T
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Cutler Hammer
IAG1-1REC4-51-5.00-01
IAG1-1REC4-51-5.00-01
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Sensata Technologies
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.