1. Home / 
  2. All Categories / 
  3. Circuit Breaker / 
  4. Molded Case Circuit Breaker

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.
SORT BY
Part Number
PRICE
Manufacturer
Amperage
Voltage
MP2125KMM
MP2125KMM
Limited Stock
From
Get Price
Murray Corporation
125
240
MP2125KMST
MP2125KMST
Limited Stock
From
Get Price
Murray Corporation
125
240
MP2125KMST24V
MP2125KMST24V
Limited Stock
From
Get Price
Murray Corporation
125
240
MP2125KMY
MP2125KMY
Limited Stock
From
Get Price
Murray Corporation
125
240
MP215KHAS
MP215KHAS
Limited Stock
From
Get Price
Murray Corporation
15
240
MP215KHF
MP215KHF
Limited Stock
From
Get Price
Murray Corporation
15
240
MP215KHM
MP215KHM
Limited Stock
From
Get Price
Murray Corporation
15
240
MP215KHST
MP215KHST
Limited Stock
From
Get Price
Murray Corporation
15
240
MP215KHST24V
MP215KHST24V
Limited Stock
From
Get Price
Murray Corporation
15
240
MP215KHY
MP215KHY
Limited Stock
From
Get Price
Murray Corporation
15
240
MP215KMAS
MP215KMAS
Limited Stock
From
Get Price
Murray Corporation
15
240
MP215KMF
MP215KMF
Limited Stock
From
Get Price
Murray Corporation
15
240
MP215KMM
MP215KMM
Limited Stock
From
Get Price
Murray Corporation
15
240
MP215KMST
MP215KMST
Limited Stock
From
Get Price
Murray Corporation
15
240
MP215KMST24V
MP215KMST24V
Limited Stock
From
Get Price
Murray Corporation
15
240
MP215KMY
MP215KMY
Limited Stock
From
Get Price
Murray Corporation
15
240
MP220KHAS
MP220KHAS
Limited Stock
From
Get Price
Murray Corporation
20
240
MP220KHF
MP220KHF
Limited Stock
From
Get Price
Murray Corporation
20
240
MP220KHM
MP220KHM
Limited Stock
From
Get Price
Murray Corporation
20
240
MP220KHST
MP220KHST
Limited Stock
From
Get Price
Murray Corporation
20
240
MP220KHST24V
MP220KHST24V
Limited Stock
From
Get Price
Murray Corporation
20
240
MP220KHY
MP220KHY
Limited Stock
From
Get Price
Murray Corporation
20
240
MP220KMAS
MP220KMAS
Limited Stock
From
Get Price
Murray Corporation
20
240
MP220KMF
MP220KMF
Limited Stock
From
Get Price
Murray Corporation
20
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.