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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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A9N18434
A9N18434
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Schneider Electric
A9N61508
A9N61508
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Schneider Electric
EUC14D
EUC14D
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Europa Components
EUC316C
EUC316C
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Europa Components
IELK11-1-62-10.0-01-V
IELK11-1-62-10.0-01-V
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Sensata Technologies
JA1-Z470-2
JA1-Z470-2
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Eaton
JTEC-489-1-C-15
JTEC-489-1-C-15
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Techna
LMLK1-1RS4-32924-50-V
LMLK1-1RS4-32924-50-V
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Sensata Technologies
MSC.8
MSC.8
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Ferraz Shawmut
NSB63-C
NSB63-C
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Wylex
PSGH320
PSGH320
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Havells
S261-B20
S261-B20
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ABB
S261-D4
S261-D4
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ABB
S272-B40
S272-B40
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ABB
S401M-C16NP
S401M-C16NP
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ABB
S402UK50
S402UK50
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ABB
XT1HU3100AYD
XT1HU3100AYD
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01935
01935
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Legrand
03389
03389
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Legrand
06ATEX0035X
06ATEX0035X
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Schneider Electric
09134601
09134601
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Altech Corp
09144601
09144601
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Altech Corp
105-P10-10A
105-P10-10A
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Eta Engineering Technology
106-M2-P10-0.05A
106-M2-P10-0.05A
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Eta Engineering Technology
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.