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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
MA3600V
MA3600V
Limited Stock
From
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Westinghouse
600
600
MA3700SV
MA3700SV
Limited Stock
From
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Westinghouse
700
600
MA3700V
MA3700V
Limited Stock
From
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Westinghouse
700
600
MA3800SV
MA3800SV
Limited Stock
From
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Westinghouse
800
600
MA3800V
MA3800V
Limited Stock
From
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Westinghouse
800
600
MCCA3400
MCCA3400
Limited Stock
From
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Westinghouse
400
600
MCCGA2400
MCCGA2400
Limited Stock
From
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Westinghouse
400
600
MCCGA2500
MCCGA2500
Limited Stock
From
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Westinghouse
500
600
MCCGA2600
MCCGA2600
Limited Stock
From
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Westinghouse
600
600
MCCGA2700
MCCGA2700
Limited Stock
From
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Westinghouse
700
600
MCCGA2800
MCCGA2800
Limited Stock
From
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Westinghouse
800
600
MCCGA2800F
MCCGA2800F
Limited Stock
From
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Westinghouse
800
600
MCCGA3400
MCCGA3400
Limited Stock
From
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Westinghouse
400
600
MCCGA3500
MCCGA3500
Limited Stock
From
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Westinghouse
500
600
MCCGA3600
MCCGA3600
Limited Stock
From
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Westinghouse
600
600
MCCGA3700
MCCGA3700
Limited Stock
From
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Westinghouse
700
600
MCCGA3800
MCCGA3800
Limited Stock
From
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Westinghouse
800
600
MCCGA3800F
MCCGA3800F
Limited Stock
From
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Westinghouse
800
600
MCGA2400
MCGA2400
Limited Stock
From
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Westinghouse
400
600
MCGA2500
MCGA2500
Limited Stock
From
Get Price
Westinghouse
500
600
MCGA2600
MCGA2600
Limited Stock
From
Get Price
Westinghouse
600
600
MCGA2700
MCGA2700
Limited Stock
From
Get Price
Westinghouse
700
600
MCGA2800
MCGA2800
Limited Stock
From
Get Price
Westinghouse
800
600
MCGA2800F
MCGA2800F
Limited Stock
From
Get Price
Westinghouse
800
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.