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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
LGP36250TU33X
LGP36250TU33X
Limited Stock
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Schneider Electric
250
600
LGP36400RU31X
LGP36400RU31X
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Schneider Electric
400
600
LGP36400RU33X
LGP36400RU33X
Limited Stock
From
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Square D
400
600
LGP36400RU43X
LGP36400RU43X
Limited Stock
From
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Square D
400
600
LGP36400RU44X
LGP36400RU44X
Limited Stock
From
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Schneider Electric
400
600
LGP36400RU53X
LGP36400RU53X
Limited Stock
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Square D
400
600
LGP36400RU54X
LGP36400RU54X
Limited Stock
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Square D
400
600
LGP36400TU31X
LGP36400TU31X
Limited Stock
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Schneider Electric
400
600
LGP36400TU33X
LGP36400TU33X
Limited Stock
From
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Square D
400
600
LGP36400TU43X
LGP36400TU43X
Limited Stock
From
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Square D
400
600
LGP36400TU44X
LGP36400TU44X
Limited Stock
From
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Square D
400
600
LGP36400TU53X
LGP36400TU53X
Limited Stock
From
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Square D
400
600
LGP36400TU54X
LGP36400TU54X
Limited Stock
From
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Schneider Electric
400
600
LGP36600TU31X
LGP36600TU31X
Limited Stock
From
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Square D
600
600
LGP36600TU33X
LGP36600TU33X
Limited Stock
From
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Square D
600
600
LGP36600TU43X
LGP36600TU43X
Limited Stock
From
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Square D
600
600
LGP36600TU44X
LGP36600TU44X
Limited Stock
From
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Square D
600
600
LGP36600TU53X
LGP36600TU53X
Limited Stock
From
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Schneider Electric
600
600
LGP36600TU54X
LGP36600TU54X
Limited Stock
From
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Square D
600
600
LGP44250WU31X
LGP44250WU31X
Limited Stock
From
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Square D
250
480
LGP44250WU33X
LGP44250WU33X
Limited Stock
From
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Square D
250
480
LGP44250WU43X
LGP44250WU43X
Limited Stock
From
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Square D
250
480
LGP44400WU31X
LGP44400WU31X
Limited Stock
From
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Square D
400
480
LGP44400WU33X
LGP44400WU33X
Limited Stock
From
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Square D
400
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.