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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
FB3070SV
FB3070SV
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Westinghouse
FI-25/2/003-A
FI-25/2/003-A
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Eaton Moeller
FI-40/4/003-A
FI-40/4/003-A
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Eaton Moeller
FIP16-2/0.03
FIP16-2/0.03
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Eaton
FR34020
FR34020
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Schneider Electric
FRCMM-25/2/003-A
FRCMM-25/2/003-A
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Eaton Moeller
G-MCB-106-B
G-MCB-106-B
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GARO
GCB400S-3FF400LL
GCB400S-3FF400LL
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Automation Direct
GEB3063FFG
GEB3063FFG
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Eaton
GFSMCB120252P
GFSMCB120252P
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Hubbell
GHF3645001-R4510
GHF3645001-R4510
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ABB
GMB632PC13
GMB632PC13
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Carlo Gavazzi
GMB632PC4
GMB632PC4
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Carlo Gavazzi
GMB632PC50
GMB632PC50
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Carlo Gavazzi
GMCBU-2C-1
GMCBU-2C-1
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Automation Direct
GMCP007C0C/B3
GMCP007C0C/B3
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Eaton
GMU-0.5-U
GMU-0.5-U
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Stopcircuit
GSB632PC6
GSB632PC6
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Carlo Gavazzi
GSB632PD50
GSB632PD50
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Carlo Gavazzi
GSB633PB25
GSB633PB25
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Carlo Gavazzi
GSB634PB1
GSB634PB1
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Carlo Gavazzi
GSB634PD50
GSB634PD50
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Carlo Gavazzi
GSB634PD63
GSB634PD63
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Carlo Gavazzi
GV3L65
GV3L65
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Schneider Electric
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.