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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
PLM34080CU41AAB
PLM34080CU41AAB
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Schneider Electric
800
480
PLM34080CU41AAC
PLM34080CU41AAC
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Square D
800
480
PLM34080CU41ABC
PLM34080CU41ABC
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Schneider Electric
800
480
PLM34080CU41ABD
PLM34080CU41ABD
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Square D
800
480
PLM34080CU41AYP
PLM34080CU41AYP
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Schneider Electric
800
480
PLM34080CU43AAA
PLM34080CU43AAA
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Square D
800
480
PLM34080CU43AAB
PLM34080CU43AAB
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Square D
800
480
PLM34080CU43AAC
PLM34080CU43AAC
Limited Stock
From
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Schneider Electric
800
480
PLM34080CU43ABC
PLM34080CU43ABC
Limited Stock
From
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Square D
800
480
PLM34080CU43ABD
PLM34080CU43ABD
Limited Stock
From
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Square D
800
480
PLM34080CU43AYP
PLM34080CU43AYP
Limited Stock
From
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Schneider Electric
800
480
PLM34080CU44AAA
PLM34080CU44AAA
Limited Stock
From
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Schneider Electric
800
480
PLM34080CU44AAB
PLM34080CU44AAB
Limited Stock
From
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Square D
800
480
PLM34080CU44AAC
PLM34080CU44AAC
Limited Stock
From
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Schneider Electric
800
480
PLM34080CU44ABC
PLM34080CU44ABC
Limited Stock
From
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Schneider Electric
800
480
PLM34080CU44ABD
PLM34080CU44ABD
Limited Stock
From
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Square D
800
480
PLM34080CU44AYP
PLM34080CU44AYP
Limited Stock
From
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Square D
800
480
PLM34080CU63AE1AA
PLM34080CU63AE1AA
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Square D
800
480
PLM34080CU63AE1AB
PLM34080CU63AE1AB
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Square D
800
480
PLM34080CU63AE1AC
PLM34080CU63AE1AC
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From
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Square D
800
480
PLM34080CU63AE1BC
PLM34080CU63AE1BC
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From
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Schneider Electric
800
480
PLM34080CU63AE1BD
PLM34080CU63AE1BD
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Schneider Electric
800
480
PLM34080CU63AE1YP
PLM34080CU63AE1YP
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Schneider Electric
800
480
PLM34080CU64AE1AA
PLM34080CU64AE1AA
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From
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Schneider Electric
800
480
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.