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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
PDG32P0400D4DJ
PDG32P0400D4DJ
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Cutler Hammer
400
600
PDG32P0400D4DK
PDG32P0400D4DK
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Cutler Hammer
400
600
PDG32P0400D4DL
PDG32P0400D4DL
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Cutler Hammer
400
600
PDG32P0400D4DN
PDG32P0400D4DN
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Eaton
400
600
PDG32P0400D4MJ
PDG32P0400D4MJ
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Cutler Hammer
400
600
PDG32P0400D4MK
PDG32P0400D4MK
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Cutler Hammer
400
600
PDG32P0400D4ML
PDG32P0400D4ML
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Eaton
400
600
PDG32P0400D4MN
PDG32P0400D4MN
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Cutler Hammer
400
600
PDG32P0400D4WJ
PDG32P0400D4WJ
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Cutler Hammer
400
600
PDG32P0400D4WK
PDG32P0400D4WK
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Cutler Hammer
400
600
PDG32P0400D4WL
PDG32P0400D4WL
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Cutler Hammer
400
600
PDG32P0400D4WN
PDG32P0400D4WN
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Eaton
400
600
PDG32P0400D4YJ
PDG32P0400D4YJ
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From
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Eaton
400
600
PDG32P0400D4YK
PDG32P0400D4YK
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From
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Eaton
400
600
PDG32P0400D4YL
PDG32P0400D4YL
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Cutler Hammer
400
600
PDG32P0400D4YN
PDG32P0400D4YN
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Eaton
400
600
PDG32P0400D5DJ
PDG32P0400D5DJ
Limited Stock
From
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Cutler Hammer
400
600
PDG32P0400D5DK
PDG32P0400D5DK
Limited Stock
From
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Eaton
400
600
PDG32P0400D5DL
PDG32P0400D5DL
Limited Stock
From
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Cutler Hammer
400
600
PDG32P0400D5DN
PDG32P0400D5DN
Limited Stock
From
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Eaton
400
600
PDG32P0400D5MJ
PDG32P0400D5MJ
Limited Stock
From
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Cutler Hammer
400
600
PDG32P0400D5MK
PDG32P0400D5MK
Limited Stock
From
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Cutler Hammer
400
600
PDG32P0400D5ML
PDG32P0400D5ML
Limited Stock
From
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Eaton
400
600
PDG32P0400D5MN
PDG32P0400D5MN
Limited Stock
From
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Cutler Hammer
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.