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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
RMCF3100
RMCF3100
Limited Stock
From
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Westinghouse
100
600
RMCF3100L
RMCF3100L
Limited Stock
From
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Cutler Hammer
100
600
RMCF3125
RMCF3125
Limited Stock
From
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Westinghouse
125
600
RMCF3125L
RMCF3125L
Limited Stock
From
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Westinghouse
125
600
RMCF3150
RMCF3150
Limited Stock
From
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Westinghouse
150
600
RMCF3150L
RMCF3150L
Limited Stock
From
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Westinghouse
150
600
WFP2100T
WFP2100T
Limited Stock
From
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Westinghouse
100
240
WFP2125
WFP2125
Limited Stock
From
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Westinghouse
125
240
WFP2125LNP
WFP2125LNP
Limited Stock
From
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Westinghouse
125
240
WFP2125T
WFP2125T
Limited Stock
From
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Westinghouse
125
240
WFP2150LNP
WFP2150LNP
Limited Stock
From
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Westinghouse
150
240
WFP2175
WFP2175
Limited Stock
From
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Westinghouse
175
240
WFP2175LNP
WFP2175LNP
Limited Stock
From
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Westinghouse
175
240
WFP2175T
WFP2175T
Limited Stock
From
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Westinghouse
175
240
WFP2200LNP
WFP2200LNP
Limited Stock
From
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Westinghouse
200
240
WFP2225
WFP2225
Limited Stock
From
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Westinghouse
225
240
WFP2225LNP
WFP2225LNP
Limited Stock
From
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Westinghouse
225
240
WFP2225T
WFP2225T
Limited Stock
From
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Westinghouse
225
240
WFP3150
WFP3150
Limited Stock
From
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Westinghouse
150
240
YFB-050
YFB-050
Limited Stock
From
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Westinghouse
50
240
E2JM3150
E2JM3150
Limited Stock
From
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Cutler Hammer
175
1000
E2JM3225D
E2JM3225D
Limited Stock
From
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Westinghouse
225
1000
E2KM3150W
E2KM3150W
Limited Stock
From
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Westinghouse
150
1000
E2R320T33W
E2R320T33W
Limited Stock
From
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Cutler Hammer
2000
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.