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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
MA36600F
MA36600F
Limited Stock
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Square D
600
600
MA36800F
MA36800F
Limited Stock
From
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Square D
800
600
MAL260006M
MAL260006M
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From
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Square D
600
600
MAL260008M
MAL260008M
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From
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Square D
800
600
MAL36800F
MAL36800F
Limited Stock
From
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Square D
800
600
MAP361000MT
MAP361000MT
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Square D
1000
600
MAP36400MT
MAP36400MT
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Square D
400
600
MAP36900MT
MAP36900MT
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Square D
900
600
MC2800WK
MC2800WK
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Westinghouse
800
600
MCC2800WK
MCC2800WK
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Westinghouse
800
600
MCC3800WK
MCC3800WK
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Westinghouse
800
600
MDY2400
MDY2400
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Westinghouse
400
240
MDY2600
MDY2600
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Eaton
600
240
MDY3400
MDY3400
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Westinghouse
400
240
MDY3600
MDY3600
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Cutler Hammer
600
240
ME226LI
ME226LI
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Square D
250
600
ME226LIG
ME226LIG
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Square D
250
600
ME226LS
ME226LS
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Square D
250
600
ME226LSG
ME226LSG
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Square D
250
600
ME226LSI
ME226LSI
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Square D
250
600
ME226LSIG
ME226LSIG
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Square D
250
600
ME236LS
ME236LS
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Square D
250
600
ME236LSG
ME236LSG
Limited Stock
From
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Square D
250
600
ME236LSI
ME236LSI
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From
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Square D
250
600
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.