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
NB-316
NB-316
Limited Stock
From
Get Price
Hager
NB216
NB216
Limited Stock
From
Get Price
Hager
NB306
NB306
Limited Stock
From
Get Price
Hager
NB310
NB310
Limited Stock
From
Get Price
Hager
NB332
NB332
Limited Stock
From
Get Price
Hager
NBN116A
NBN116A
Limited Stock
From
Get Price
Hager
NBN206A
NBN206A
Limited Stock
From
Get Price
Hager
NBN306A
NBN306A
Limited Stock
From
Get Price
Hager
NBN332
NBN332
Limited Stock
From
Get Price
Hager
NBN332A
NBN332A
Limited Stock
From
Get Price
Hager
NC 240
NC 240
Limited Stock
From
Get Price
Hager
NC 332
NC 332
Limited Stock
From
Get Price
Hager
NC-100
NC-100
In Stock
From
$103.69
Hager
NC-132
NC-132
Limited Stock
From
Get Price
Hager
NC-304
NC-304
Limited Stock
From
Get Price
Hager
NC-310
NC-310
Limited Stock
From
Get Price
Hager
NC163
NC163
Limited Stock
From
Get Price
Hager
NC301
NC301
Limited Stock
From
Get Price
Hager
NC306
NC306
Limited Stock
From
Get Price
Hager
NC310
NC310
Limited Stock
From
Get Price
Hager
NC316
NC316
In Stock
From
$26.45
Hager
NC320
NC320
Limited Stock
From
Get Price
Hager
NC325
NC325
Limited Stock
From
Get Price
Hager
NC340
NC340
Limited Stock
From
Get Price
Hager
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.