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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
NAP36120047M
NAP36120047M
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Square D
1200
600
NB100N-3P-90A
NB100N-3P-90A
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Merlin Gerin
90
690
NCL2600012M
NCL2600012M
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Square D
1200
600
NE1226LI
NE1226LI
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Square D
1200
600
NE1226LIG
NE1226LIG
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Square D
1200
600
NE1226LS
NE1226LS
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Square D
1200
600
NE1226LSG
NE1226LSG
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Square D
1200
600
NE1226LSI
NE1226LSI
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Square D
1200
600
NE1226LSIG
NE1226LSIG
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Square D
1200
600
NEF1226LI
NEF1226LI
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Square D
1200
600
NEF1226LIG
NEF1226LIG
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Square D
1200
600
NEF1226LS
NEF1226LS
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Square D
1200
600
NEF1226LSG
NEF1226LSG
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Square D
1200
600
NEF1226LSI
NEF1226LSI
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Square D
1200
600
NEF1226LSIG
NEF1226LSIG
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Square D
1200
600
NEF1236LI
NEF1236LI
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Square D
1200
600
NEF1236LIG
NEF1236LIG
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Square D
1200
600
NEF1236LS
NEF1236LS
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Square D
1200
600
NEF1236LSG
NEF1236LSG
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Square D
1200
600
NEF1236LSI
NEF1236LSI
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Square D
1200
600
NEF1236LSIG
NEF1236LSIG
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Square D
1200
600
NEFG1226LI
NEFG1226LI
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Square D
1200
600
NEFG1226LS
NEFG1226LS
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Square D
1200
600
NEFG1226LSI
NEFG1226LSI
Limited Stock
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Square D
1200
600
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.