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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
NSE100N4025ELA
NSE100N4025ELA
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Schneider Electric
25
480
NSE100N4025P
NSE100N4025P
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Schneider Electric
25
480
NSE100N4032
NSE100N4032
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Schneider Electric
32
480
NSE100N4032EL
NSE100N4032EL
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Schneider Electric
32
480
NSE100N4032ELA
NSE100N4032ELA
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Schneider Electric
32
480
NSE100N4032P
NSE100N4032P
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Schneider Electric
32
480
NSE100N4040
NSE100N4040
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Schneider Electric
40
480
NSE100N4040EL
NSE100N4040EL
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Schneider Electric
40
480
NSE100N4040ELA
NSE100N4040ELA
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Schneider Electric
40
480
NSE100N4040P
NSE100N4040P
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Schneider Electric
40
480
NSE100N4050
NSE100N4050
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Schneider Electric
50
480
NSE100N4050EL
NSE100N4050EL
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Schneider Electric
50
480
NSE100N4050ELA
NSE100N4050ELA
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Schneider Electric
50
480
NSE100N4050P
NSE100N4050P
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Schneider Electric
50
480
NSE100N4063
NSE100N4063
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Schneider Electric
63
480
NSE100N4063EL
NSE100N4063EL
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Schneider Electric
63
480
NSE100N4063ELA
NSE100N4063ELA
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Schneider Electric
63
480
NSE100N4063P
NSE100N4063P
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Schneider Electric
63
480
NSE100N4080
NSE100N4080
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Schneider Electric
80
480
NSE100N4080EL
NSE100N4080EL
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Schneider Electric
80
480
NSE100N4080ELA
NSE100N4080ELA
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Schneider Electric
80
480
NSE100N4080P
NSE100N4080P
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Schneider Electric
80
480
NSE100N4100
NSE100N4100
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Schneider Electric
100
480
NSE100N4100EL
NSE100N4100EL
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Schneider Electric
100
480
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.