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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
NPJF36120YP
NPJF36120YP
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Schneider Electric
1200
600
NPJF36160CU43A
NPJF36160CU43A
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Square D
1600
600
NPJF36160U43A
NPJF36160U43A
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Schneider Electric
1600
600
NPJF36200CU43A
NPJF36200CU43A
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Square D
2000
600
NPJF36200U43A
NPJF36200U43A
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Schneider Electric
2000
600
NPJF36250CU43A
NPJF36250CU43A
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Square D
2500
600
NPJF36250U43A
NPJF36250U43A
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Schneider Electric
2500
600
NPJF36300CU43A
NPJF36300CU43A
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Schneider Electric
3000
600
NPJF36300U43A
NPJF36300U43A
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Square D
3000
600
NPJL26000S10
NPJL26000S10
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Schneider Electric
1000
600
NPJL26000S12
NPJL26000S12
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Square D
1200
600
NPJL26000S60
NPJL26000S60
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Schneider Electric
600
600
NPJL26000S80
NPJL26000S80
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Schneider Electric
800
600
NPJL36000S10
NPJL36000S10
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Square D
1000
600
NPJL36000S10RE10
NPJL36000S10RE10
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Square D
1000
600
NPJL36000S12
NPJL36000S12
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Schneider Electric
1200
600
NPJL36000S12RE10
NPJL36000S12RE10
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Square D
1200
600
NPJL36000S60
NPJL36000S60
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Schneider Electric
600
600
NPJL36000S60RE10
NPJL36000S60RE10
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Square D
600
600
NPJL36000S80
NPJL36000S80
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Schneider Electric
800
600
NPJL36000S80RE10
NPJL36000S80RE10
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Schneider Electric
800
600
NPJL36025
NPJL36025
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Schneider Electric
250
600
NPJL36025CU31A
NPJL36025CU31A
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Schneider Electric
250
600
NPJL36025CU31B
NPJL36025CU31B
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Square D
250
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.