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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
PKD36040CU31A
PKD36040CU31A
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Schneider Electric
400
600
PKD36040U31A
PKD36040U31A
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Square D
400
600
PKD36060
PKD36060
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Schneider Electric
600
600
PKD36060CU31A
PKD36060CU31A
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Square D
600
600
PKD36060U31A
PKD36060U31A
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Square D
600
600
PKD36080
PKD36080
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Schneider Electric
800
600
PKD36080CU31A
PKD36080CU31A
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Schneider Electric
800
600
PKD36080U31A
PKD36080U31A
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Square D
800
600
PKD36100
PKD36100
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Square D
1000
600
PKD36100CU31A
PKD36100CU31A
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Schneider Electric
1000
600
PKD36100U31A
PKD36100U31A
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Square D
1000
600
PKD36120
PKD36120
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Schneider Electric
1200
600
PKD36120CU31A
PKD36120CU31A
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Square D
1200
600
PKD36120U31A
PKD36120U31A
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Schneider Electric
1200
600
PKF36120U44AAA
PKF36120U44AAA
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Square D
1200
600
PKF36120U44AAB
PKF36120U44AAB
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Square D
1200
600
PKF36120U44AAC
PKF36120U44AAC
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Square D
1200
600
PKF36120U44ABC
PKF36120U44ABC
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Schneider Electric
1200
600
PKF36120U44ABD
PKF36120U44ABD
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Square D
1200
600
PKL26000S10
PKL26000S10
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Square D
1000
600
PKL26000S12
PKL26000S12
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Schneider Electric
1200
600
PKL26000S60
PKL26000S60
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From
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Schneider Electric
600
600
PKL26000S80
PKL26000S80
Limited Stock
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Schneider Electric
800
600
PKM26000S10
PKM26000S10
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Square D
1000
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.