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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
MP130KHAS
MP130KHAS
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Murray Corporation
30
120
MP130KHF
MP130KHF
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Murray Corporation
30
120
MP130KHM
MP130KHM
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Murray Corporation
30
120
MP130KHST
MP130KHST
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Murray Corporation
30
120
MP130KHST24V
MP130KHST24V
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Murray Corporation
30
120
MP130KHY
MP130KHY
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Murray Corporation
30
120
MP130KM
MP130KM
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Murray Corporation
30
120
MP130KMAS
MP130KMAS
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Murray Corporation
30
120
MP130KMF
MP130KMF
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Murray Corporation
30
120
MP130KMM
MP130KMM
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Murray Corporation
30
120
MP130KMST
MP130KMST
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Murray Corporation
30
120
MP130KMST24V
MP130KMST24V
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Murray Corporation
30
120
MP130KMY
MP130KMY
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Murray Corporation
30
120
MP135KH
MP135KH
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Murray Corporation
35
120
MP135KHAS
MP135KHAS
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Murray Corporation
35
120
MP135KHF
MP135KHF
Limited Stock
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Murray Corporation
35
120
MP135KHM
MP135KHM
Limited Stock
From
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Murray Corporation
35
120
MP135KHST
MP135KHST
Limited Stock
From
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Murray Corporation
35
120
MP135KHST24V
MP135KHST24V
Limited Stock
From
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Murray Corporation
35
120
MP135KHY
MP135KHY
Limited Stock
From
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Murray Corporation
35
120
MP135KM
MP135KM
Limited Stock
From
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Murray Corporation
35
120
MP135KMAS
MP135KMAS
Limited Stock
From
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Murray Corporation
35
120
MP135KMF
MP135KMF
Limited Stock
From
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Murray Corporation
35
120
MP135KMM
MP135KMM
Limited Stock
From
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Murray Corporation
35
120
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.