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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
CKAXFE36080LI
CKAXFE36080LI
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Square D
800
690
CKAXFE36100LI
CKAXFE36100LI
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Merlin Gerin
1000
690
CKAXFE36125LI
CKAXFE36125LI
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Merlin Gerin
1250
690
CKAXFE37125M2
CKAXFE37125M2
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Square D
1250
750
CKAXFE37125M4
CKAXFE37125M4
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Schneider Electric
1250
750
CKAXFE46080LI
CKAXFE46080LI
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Schneider Electric
800
690
CKAXFE46100LI
CKAXFE46100LI
Limited Stock
From
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Square D
1000
690
CKAXFE46125LI
CKAXFE46125LI
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Merlin Gerin
1250
690
CKAXL3604E1
CKAXL3604E1
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Square D
400
600
CKAXL3608E1
CKAXL3608E1
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Merlin Gerin
800
600
CKAXL36121LI
CKAXL36121LI
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Merlin Gerin
1200
600
CKAXL3612E1
CKAXL3612E1
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Merlin Gerin
1200
600
CKAXL36404LI
CKAXL36404LI
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Schneider Electric
400
600
CKAXL36808LI
CKAXL36808LI
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Merlin Gerin
800
600
CKAXL4604E1
CKAXL4604E1
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Schneider Electric
400
600
CKAXL4608E1
CKAXL4608E1
Limited Stock
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Merlin Gerin
800
600
CKAXL46121LI
CKAXL46121LI
Limited Stock
From
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Schneider Electric
1200
600
CKAXL4612E1
CKAXL4612E1
Limited Stock
From
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Schneider Electric
1200
600
CKAXL46404LI
CKAXL46404LI
Limited Stock
From
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Merlin Gerin
400
600
CKAXL46808LI
CKAXL46808LI
Limited Stock
From
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Square D
800
600
CKAXLE31040LI
CKAXLE31040LI
Limited Stock
From
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Schneider Electric
400
1000
CKAXLE31080LI
CKAXLE31080LI
Limited Stock
From
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Square D
800
1000
CKAXLE31125LI
CKAXLE31125LI
Limited Stock
From
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Square D
1250
1000
CKAXLE36080LI
CKAXLE36080LI
Limited Stock
From
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Square D
800
690
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.