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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
Amperage
Voltage
434766
434766
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General Electric
160
690
434769
434769
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General Electric
250
690
434770
434770
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General Electric
500
690
434772
434772
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General Electric
25
690
434782
434782
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General Electric
500
690
434812
434812
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General Electric
500
690
434820
434820
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General Electric
160
690
434823
434823
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General Electric
200
690
434824
434824
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General Electric
500
690
434826
434826
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General Electric
250
690
434841
434841
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General Electric
160
690
434844
434844
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General Electric
250
690
434866
434866
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General Electric
500
690
434872
434872
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General Electric
500
690
434889
434889
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General Electric
40
690
434928
434928
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General Electric
160
690
434931
434931
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General Electric
160
690
434934
434934
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General Electric
200
690
434937
434937
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General Electric
250
690
434964
434964
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General Electric
160
690
434967
434967
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General Electric
250
690
435007
435007
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General Electric
160
690
435010
435010
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General Electric
250
690
435035
435035
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General Electric
1250
690
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.