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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
NS1600BNA
NS1600BNA
Limited Stock
From
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Square D
1600
440
NS1600NA
NS1600NA
Limited Stock
From
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Schneider Electric
1600
440
NS2000L
NS2000L
Limited Stock
From
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Square D
2000
690
NS2000NA
NS2000NA
Limited Stock
From
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Square D
2000
440
NS2500L
NS2500L
Limited Stock
From
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Schneider Electric
2500
690
NS2500NA
NS2500NA
Limited Stock
From
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Square D
2500
440
NS3200H
NS3200H
Limited Stock
From
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Merlin Gerin
3200
690
NS3200L
NS3200L
Limited Stock
From
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Schneider Electric
3200
690
NS3200NA
NS3200NA
Limited Stock
From
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Square D
3200
440
NSE100E3015
NSE100E3015
Limited Stock
From
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Schneider Electric
15
480
NSE100E3020
NSE100E3020
Limited Stock
From
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Schneider Electric
20
480
NSE100E3025
NSE100E3025
Limited Stock
From
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Schneider Electric
25
480
NSE100E3030
NSE100E3030
Limited Stock
From
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Schneider Electric
30
480
NSE100E3040
NSE100E3040
Limited Stock
From
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Schneider Electric
40
480
NSE100E3050
NSE100E3050
Limited Stock
From
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Schneider Electric
50
480
NSE100E3060
NSE100E3060
Limited Stock
From
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Schneider Electric
60
480
NSE100E3075
NSE100E3075
Limited Stock
From
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Schneider Electric
75
480
NSE100E3080
NSE100E3080
Limited Stock
From
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Schneider Electric
80
480
NSE100E3100
NSE100E3100
Limited Stock
From
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Schneider Electric
100
480
NSE100E4015
NSE100E4015
Limited Stock
From
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Schneider Electric
15
480
NSE100E4020
NSE100E4020
Limited Stock
From
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Schneider Electric
20
480
NSE100E4025
NSE100E4025
Limited Stock
From
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Schneider Electric
25
480
NSE100E4030
NSE100E4030
Limited Stock
From
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Schneider Electric
30
480
NSE100E4040
NSE100E4040
Limited Stock
From
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Schneider Electric
40
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.