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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
FWF4100L0
FWF4100L0
Limited Stock
From
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Westinghouse
100
690
FWF4125L0
FWF4125L0
Limited Stock
From
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Westinghouse
125
690
FWF4175L0
FWF4175L0
Limited Stock
From
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Westinghouse
175
690
FWF4200L0
FWF4200L0
Limited Stock
From
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Westinghouse
200
690
FWF4225L0
FWF4225L0
Limited Stock
From
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Eaton
225
690
GB3045
GB3045
Limited Stock
From
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Cutler Hammer
45
240
GC1025
GC1025
Limited Stock
From
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Cutler Hammer
25
120
GC1025D
GC1025D
Limited Stock
From
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Westinghouse
25
120
GC1030
GC1030
Limited Stock
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Cutler Hammer
30
120
GC1030D
GC1030D
Limited Stock
From
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Westinghouse
30
120
GC1035
GC1035
Limited Stock
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Eaton
35
120
GC1035D
GC1035D
Limited Stock
From
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Eaton
35
120
GC1040
GC1040
Limited Stock
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Westinghouse
40
120
GC1040D
GC1040D
Limited Stock
From
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Westinghouse
40
120
GC1045
GC1045
Limited Stock
From
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Westinghouse
45
120
GC1045D
GC1045D
Limited Stock
From
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Westinghouse
45
120
GC1050
GC1050
Limited Stock
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Westinghouse
50
120
GC1050D
GC1050D
Limited Stock
From
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Westinghouse
50
120
GC1055D
GC1055D
Limited Stock
From
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Eaton
55
120
GC1060
GC1060
Limited Stock
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Westinghouse
60
120
GC1060D
GC1060D
Limited Stock
From
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Cutler Hammer
60
120
GC1070
GC1070
Limited Stock
From
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Cutler Hammer
70
120
GC1090
GC1090
Limited Stock
From
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Eaton
90
120
GC2025
GC2025
Limited Stock
From
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Cutler Hammer
25
240
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.