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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
PLP34120U33AAB
PLP34120U33AAB
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Schneider Electric
1200
480
PLP34120U33AAC
PLP34120U33AAC
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Square D
1200
480
PLP34120U33ABC
PLP34120U33ABC
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Schneider Electric
1200
480
PLP34120U33ABD
PLP34120U33ABD
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Schneider Electric
1200
480
PLP34120U33AYP
PLP34120U33AYP
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Square D
1200
480
PLP34120U33BAA
PLP34120U33BAA
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Square D
1200
480
PLP34120U33BAB
PLP34120U33BAB
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Square D
1200
480
PLP34120U33BAC
PLP34120U33BAC
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Square D
1200
480
PLP34120U33BBC
PLP34120U33BBC
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Schneider Electric
1200
480
PLP34120U33BBD
PLP34120U33BBD
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Square D
1200
480
PLP34120U33BYP
PLP34120U33BYP
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Square D
1200
480
PLP34120U41AAA
PLP34120U41AAA
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Square D
1200
480
PLP34120U41AAB
PLP34120U41AAB
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Square D
1200
480
PLP34120U41AAC
PLP34120U41AAC
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Square D
1200
480
PLP34120U41ABC
PLP34120U41ABC
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Square D
1200
480
PLP34120U41ABD
PLP34120U41ABD
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Schneider Electric
1200
480
PLP34120U41AYP
PLP34120U41AYP
Limited Stock
From
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Schneider Electric
1200
480
PLP34120U41BAA
PLP34120U41BAA
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From
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Square D
1200
480
PLP34120U41BAB
PLP34120U41BAB
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From
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Schneider Electric
1200
480
PLP34120U41BAC
PLP34120U41BAC
Limited Stock
From
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Square D
1200
480
PLP34120U41BBC
PLP34120U41BBC
Limited Stock
From
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Schneider Electric
1200
480
PLP34120U41BBD
PLP34120U41BBD
Limited Stock
From
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Schneider Electric
1200
480
PLP34120U41BYP
PLP34120U41BYP
Limited Stock
From
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Square D
1200
480
PLP34120U43AAA
PLP34120U43AAA
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Square D
1200
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.