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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
674922
674922
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General Electric
4
415
674926
674926
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General Electric
13
415
674927
674927
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General Electric
16
415
674928
674928
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General Electric
20
415
674929
674929
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General Electric
25
415
674931
674931
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General Electric
40
415
674932
674932
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General Electric
50
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674933
674933
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General Electric
63
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674950
674950
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General Electric
6
415
674952
674952
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General Electric
10
415
674953
674953
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General Electric
13
415
674954
674954
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General Electric
16
415
674955
674955
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General Electric
20
415
674956
674956
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General Electric
25
415
674957
674957
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General Electric
32
415
674958
674958
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General Electric
40
415
674959
674959
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General Electric
50
415
674960
674960
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General Electric
63
415
674961
674961
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General Electric
6
415
674963
674963
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General Electric
10
415
674965
674965
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General Electric
16
415
674966
674966
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General Electric
20
415
674967
674967
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General Electric
25
415
674968
674968
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General Electric
32
415
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.