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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
LGH340035W
LGH340035W
Limited Stock
From
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Cutler Hammer
400
600
LGH363032W
LGH363032W
Limited Stock
From
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Cutler Hammer
630
600
LGH363033W
LGH363033W
Limited Stock
From
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Cutler Hammer
630
600
LGH363035W
LGH363035W
Limited Stock
From
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Cutler Hammer
630
600
LGS325032W
LGS325032W
Limited Stock
From
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Cutler Hammer
250
600
LGS325033W
LGS325033W
Limited Stock
From
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Cutler Hammer
250
600
LGS325035W
LGS325035W
Limited Stock
From
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Cutler Hammer
250
600
LGS325036W
LGS325036W
Limited Stock
From
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Cutler Hammer
250
600
LGS340035W
LGS340035W
Limited Stock
From
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Cutler Hammer
400
600
LGS340036W
LGS340036W
Limited Stock
From
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Cutler Hammer
400
600
LGS360035W
LGS360035W
Limited Stock
From
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Cutler Hammer
600
600
LGS360036W
LGS360036W
Limited Stock
From
Get Price
Cutler Hammer
600
600
LGS363032W
LGS363032W
Limited Stock
From
Get Price
Cutler Hammer
630
600
LGS363033W
LGS363033W
Limited Stock
From
Get Price
Cutler Hammer
630
600
LGS363035W
LGS363035W
Limited Stock
From
Get Price
Cutler Hammer
630
600
LGS363036W
LGS363036W
Limited Stock
From
Get Price
Cutler Hammer
630
600
NGH312032MZG
NGH312032MZG
Limited Stock
From
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Eaton
-
-
NGH312036MZG
NGH312036MZG
Limited Stock
From
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Eaton
-
-
NGS316032M
NGS316032M
Limited Stock
From
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Eaton
-
-
NGS316033M
NGS316033M
Limited Stock
From
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Eaton
-
-
NGS316035M
NGS316035M
Limited Stock
From
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Eaton
-
-
NGS316036M
NGS316036M
Limited Stock
From
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Eaton
-
-
NGS316038M
NGS316038M
Limited Stock
From
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Eaton
-
-
NGS316039M
NGS316039M
Limited Stock
From
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Eaton
-
-
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.