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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
MP270KMST
MP270KMST
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Murray Corporation
70
240
MP270KMST24V
MP270KMST24V
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From
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Murray Corporation
70
240
MP270KMY
MP270KMY
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Murray Corporation
70
240
MP280KHAS
MP280KHAS
Limited Stock
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Murray Corporation
80
240
MP280KHF
MP280KHF
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Murray Corporation
80
240
MP280KHM
MP280KHM
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From
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Murray Corporation
80
240
MP280KHST
MP280KHST
Limited Stock
From
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Murray Corporation
80
240
MP280KHST24V
MP280KHST24V
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From
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Murray Corporation
80
240
MP280KHY
MP280KHY
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Murray Corporation
80
240
MD2150T
MD2150T
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Murray Corporation
150
240
MD2225
MD2225
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Murray Corporation
225
240
MDH2150T
MDH2150T
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Murray Corporation
150
240
MDH2225
MDH2225
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Murray Corporation
225
240
MDH2225H
MDH2225H
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Murray Corporation
225
240
MDH2225V
MDH2225V
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Murray Corporation
225
240
MEQ9675
MEQ9675
Limited Stock
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Murray Corporation
100
240
MEQ9677
MEQ9677
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Murray Corporation
125
240
MP3100KHAS
MP3100KHAS
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From
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Murray Corporation
100
240
MP3100KHF
MP3100KHF
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From
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Murray Corporation
100
240
MP3100KHM
MP3100KHM
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From
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Murray Corporation
100
240
MP3100KHST
MP3100KHST
Limited Stock
From
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Murray Corporation
100
240
MP3100KHST24V
MP3100KHST24V
Limited Stock
From
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Murray Corporation
100
240
MP3100KHY
MP3100KHY
Limited Stock
From
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Murray Corporation
100
240
MP3100KMAS
MP3100KMAS
Limited Stock
From
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Murray Corporation
100
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.