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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
LGS340038GVH08
LGS340038GVH08
Limited Stock
From
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Cutler Hammer
400
600
LGS340038GVH09
LGS340038GVH09
Limited Stock
From
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Cutler Hammer
400
600
LGS340039GH08
LGS340039GH08
Limited Stock
From
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Cutler Hammer
400
600
LGS340039GVH08
LGS340039GVH08
Limited Stock
From
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Cutler Hammer
400
600
LGS340039GVH09
LGS340039GVH09
Limited Stock
From
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Cutler Hammer
400
600
LGS3400AAGH08
LGS3400AAGH08
Limited Stock
From
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Cutler Hammer
400
600
LGS3400AAGVH08
LGS3400AAGVH08
Limited Stock
From
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Cutler Hammer
400
600
LGS3400AAGVH09
LGS3400AAGVH09
Limited Stock
From
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Cutler Hammer
400
600
LGS3400FAGCH08
LGS3400FAGCH08
Limited Stock
From
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Cutler Hammer
400
600
LGS3400FAGCVH08
LGS3400FAGCVH08
Limited Stock
From
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Cutler Hammer
400
600
LGS3400FAGCVH09
LGS3400FAGCVH09
Limited Stock
From
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Cutler Hammer
400
600
LGS3400FAGH08
LGS3400FAGH08
Limited Stock
From
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Cutler Hammer
400
600
LGS3400FAGVH08
LGS3400FAGVH08
Limited Stock
From
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Cutler Hammer
400
600
LGS3400FAGVH09
LGS3400FAGVH09
Limited Stock
From
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Cutler Hammer
400
600
LGS3400FAWCH08
LGS3400FAWCH08
Limited Stock
From
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Cutler Hammer
400
600
LGS3400FAWCVH08
LGS3400FAWCVH08
Limited Stock
From
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Cutler Hammer
400
600
LGS3400FAWCVH09
LGS3400FAWCVH09
Limited Stock
From
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Cutler Hammer
400
600
LGS3500AAGH08
LGS3500AAGH08
Limited Stock
From
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Cutler Hammer
500
600
LGS3500AAGVH08
LGS3500AAGVH08
Limited Stock
From
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Cutler Hammer
500
600
LGS3500AAGVH09
LGS3500AAGVH09
Limited Stock
From
Get Price
Cutler Hammer
500
600
LGS3500FAGCH08
LGS3500FAGCH08
Limited Stock
From
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Cutler Hammer
500
600
LGS3500FAGCVH08
LGS3500FAGCVH08
Limited Stock
From
Get Price
Cutler Hammer
500
600
LGS3500FAGCVH09
LGS3500FAGCVH09
Limited Stock
From
Get Price
Cutler Hammer
500
600
LGS3500FAGH08
LGS3500FAGH08
Limited Stock
From
Get Price
Cutler Hammer
500
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.