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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
FD4045V
FD4045V
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Cutler Hammer
45
600
FD4045VL
FD4045VL
Limited Stock
From
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Westinghouse
45
600
FD4050E
FD4050E
Limited Stock
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Westinghouse
50
600
FD4050V
FD4050V
Limited Stock
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Westinghouse
50
600
FD4050VL
FD4050VL
Limited Stock
From
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Eaton
50
600
FD4060V
FD4060V
Limited Stock
From
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Westinghouse
60
600
FD4060VL
FD4060VL
Limited Stock
From
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Westinghouse
60
600
FD4070V
FD4070V
Limited Stock
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Westinghouse
70
600
FD4070VL
FD4070VL
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Cutler Hammer
70
600
FD4080E
FD4080E
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Westinghouse
80
600
FD4080V
FD4080V
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Cutler Hammer
80
600
FD4080VL
FD4080VL
Limited Stock
From
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Westinghouse
80
600
FD4090E
FD4090E
Limited Stock
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Eaton
90
600
FD4090V
FD4090V
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Cutler Hammer
90
600
FD4090VL
FD4090VL
Limited Stock
From
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Westinghouse
90
600
FD4100KBP10
FD4100KBP10
Limited Stock
From
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Eaton
100
600
FD4110E
FD4110E
Limited Stock
From
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Westinghouse
110
600
FD4110V
FD4110V
Limited Stock
From
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Westinghouse
110
600
FD4110VL
FD4110VL
Limited Stock
From
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Westinghouse
110
600
FD4125E
FD4125E
Limited Stock
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Westinghouse
125
600
FD4125V
FD4125V
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From
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Eaton
125
600
FD4125VL
FD4125VL
Limited Stock
From
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Westinghouse
125
600
FD4150KBP10
FD4150KBP10
Limited Stock
From
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Eaton
150
600
FD4150V
FD4150V
Limited Stock
From
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Westinghouse
150
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.