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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
PDG32NH400P4YJ
PDG32NH400P4YJ
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Eaton
400
600
PDG32NH400P4YK
PDG32NH400P4YK
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Cutler Hammer
400
600
PDG32NH400P4YL
PDG32NH400P4YL
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Cutler Hammer
400
600
PDG32NH400P4YN
PDG32NH400P4YN
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Eaton
400
600
PDG32NH400P5DJ
PDG32NH400P5DJ
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Cutler Hammer
400
600
PDG32NH400P5DK
PDG32NH400P5DK
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Cutler Hammer
400
600
PDG32NH400P5DL
PDG32NH400P5DL
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Eaton
400
600
PDG32NH400P5DN
PDG32NH400P5DN
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Cutler Hammer
400
600
PDG32NH400P5MJ
PDG32NH400P5MJ
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Cutler Hammer
400
600
PDG32NH400P5MK
PDG32NH400P5MK
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Eaton
400
600
PDG32NH400P5ML
PDG32NH400P5ML
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Eaton
400
600
PDG32NH400P5MN
PDG32NH400P5MN
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Cutler Hammer
400
600
PDG32NH400P5WJ
PDG32NH400P5WJ
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Cutler Hammer
400
600
PDG32NH400P5WK
PDG32NH400P5WK
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Eaton
400
600
PDG32NH400P5WL
PDG32NH400P5WL
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Eaton
400
600
PDG32NH400P5WN
PDG32NH400P5WN
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Eaton
400
600
PDG32NH400P5YJ
PDG32NH400P5YJ
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From
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Cutler Hammer
400
600
PDG32NH400P5YK
PDG32NH400P5YK
Limited Stock
From
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Cutler Hammer
400
600
PDG32NH400P5YL
PDG32NH400P5YL
Limited Stock
From
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Cutler Hammer
400
600
PDG32NH400P5YN
PDG32NH400P5YN
Limited Stock
From
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Cutler Hammer
400
600
PDG32NH400TFAJ
PDG32NH400TFAJ
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From
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Cutler Hammer
400
600
PDG32NH400TFAK
PDG32NH400TFAK
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From
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Eaton
400
600
PDG32NH400TFAL
PDG32NH400TFAL
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From
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Cutler Hammer
400
600
PDG32NH400TFAN
PDG32NH400TFAN
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Eaton
400
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.