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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
JDA36200LC
JDA36200LC
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Schneider Electric
JDM2250A5MWD01S10
JDM2250A5MWD01S10
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Eaton
JKL2400F
JKL2400F
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Westinghouse
JL3-A400
JL3-A400
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Siemens
JLA36225YP
JLA36225YP
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Square D
JTEC-489-1-C-13
JTEC-489-1-C-13
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Techna
JTEC-489-AUX-1C0
JTEC-489-AUX-1C0
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Techna
JTEC-UL-1-C-04
JTEC-UL-1-C-04
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Techna
JTEC4893D20
JTEC4893D20
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Techna
JTEC4893D32
JTEC4893D32
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Techna
K134200
K134200
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Schneider Electric
K2-30A10-24
K2-30A10-24
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Benedikt & Jager
K5FCHB
K5FCHB
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ABB
KA225ASNW
KA225ASNW
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Westinghouse
KA3620035
KA3620035
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Schneider Electric
KA3625029M
KA3625029M
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Schneider Electric
KAL361251171
KAL361251171
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Schneider Electric
KAL362256002
KAL362256002
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Schneider Electric
KAM3175
KAM3175
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Westinghouse
KB3175-G28
KB3175-G28
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Westinghouse
KCL341252361
KCL341252361
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Schneider Electric
KCL341758041
KCL341758041
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Schneider Electric
KD1-10
KD1-10
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Eaton
KD1-5
KD1-5
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Eaton
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.