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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
LDL36600U53X
LDL36600U53X
Limited Stock
From
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Square D
600
600
LDM36400U31X
LDM36400U31X
Limited Stock
From
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Square D
400
600
LDM36600U31X
LDM36600U31X
Limited Stock
From
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Schneider Electric
600
600
LDN36400CU53X
LDN36400CU53X
Limited Stock
From
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Schneider Electric
400
600
LDP36400CU31X
LDP36400CU31X
Limited Stock
From
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Schneider Electric
400
600
LGA34250WU33X
LGA34250WU33X
Limited Stock
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Schneider Electric
250
480
LGA34400WU31X
LGA34400WU31X
Limited Stock
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Schneider Electric
400
480
LGA36000S60X
LGA36000S60X
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Schneider Electric
600
600
LGA36250CU31X
LGA36250CU31X
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Square D
250
600
LGA36250U31X
LGA36250U31X
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Square D
250
600
LGA36250U33X
LGA36250U33X
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Square D
250
600
LGA36400CU54X
LGA36400CU54X
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From
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Schneider Electric
400
600
LGA36600U53X
LGA36600U53X
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From
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Square D
600
600
LGD36400U43X
LGD36400U43X
Limited Stock
From
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Square D
400
600
LGF36000F40
LGF36000F40
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From
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Square D
400
600
LGF36250CU33X
LGF36250CU33X
Limited Stock
From
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Schneider Electric
250
600
LGF36250U31X
LGF36250U31X
Limited Stock
From
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Schneider Electric
250
600
LGF36250U33X
LGF36250U33X
Limited Stock
From
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Schneider Electric
250
600
LGF36400CU33X
LGF36400CU33X
Limited Stock
From
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Schneider Electric
400
600
LGF36600U33X
LGF36600U33X
Limited Stock
From
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Schneider Electric
600
600
LGF46600U33X
LGF46600U33X
Limited Stock
From
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Square D
600
600
LGL34250WU31X
LGL34250WU31X
Limited Stock
From
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Square D
250
480
LGL34400WU31X
LGL34400WU31X
Limited Stock
From
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Square D
400
480
LGL34600WU54X
LGL34600WU54X
Limited Stock
From
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Schneider Electric
600
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.