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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
436356
436356
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General Electric
125
690
436361
436361
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General Electric
3
690
436363
436363
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General Electric
3
690
436365
436365
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General Electric
3
690
452D370G01
452D370G01
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Eaton
250
500
458D511G12
458D511G12
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Eaton
25
500
458D511G14
458D511G14
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Eaton
75
500
458D512G11
458D512G11
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Eaton
15
500
458D512G12
458D512G12
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Eaton
25
500
458D512G13
458D512G13
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Eaton
50
500
458D512G14
458D512G14
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Eaton
75
500
458D512G15
458D512G15
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Eaton
100
500
504C191G22
504C191G22
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Eaton
175
500
504C191G23
504C191G23
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Eaton
175
500
504C191G25
504C191G25
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Eaton
225
500
504C191G27
504C191G27
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Eaton
250
500
5685D48G45
5685D48G45
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Westinghouse
100
1000
5685D48G74
5685D48G74
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Westinghouse
225
600
5685D48G75
5685D48G75
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Westinghouse
225
600
5685D48G88
5685D48G88
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Westinghouse
100
1000
5685D48G89
5685D48G89
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Westinghouse
30
1000
5685D48G90
5685D48G90
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Westinghouse
30
1000
5925-00-113-5066
5925-00-113-5066
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Eaton
15
500
5925-00-167-7513
5925-00-167-7513
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From
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Eaton
75
500
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.