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
FDA140353
FDA140353
Limited Stock
From
Get Price
Square D
35
277
FDA140355
FDA140355
Limited Stock
From
Get Price
Square D
35
277
FDA14040
FDA14040
Limited Stock
From
Get Price
Square D
40
277
FDA140403
FDA140403
Limited Stock
From
Get Price
Square D
40
277
FDA140405
FDA140405
Limited Stock
From
Get Price
Square D
40
277
FDA14045
FDA14045
Limited Stock
From
Get Price
Square D
45
277
FDA140451
FDA140451
Limited Stock
From
Get Price
Schneider Electric
45
277
FDA140453
FDA140453
Limited Stock
From
Get Price
Square D
45
277
FDA140455
FDA140455
Limited Stock
From
Get Price
Square D
45
277
FDA14050
FDA14050
Limited Stock
From
Get Price
Schneider Electric
50
277
FDA140501
FDA140501
Limited Stock
From
Get Price
Schneider Electric
50
277
FDA140503
FDA140503
Limited Stock
From
Get Price
Schneider Electric
50
277
FDA140505
FDA140505
Limited Stock
From
Get Price
Schneider Electric
50
277
FDA14060
FDA14060
Limited Stock
From
Get Price
Square D
60
277
FDA140601
FDA140601
Limited Stock
From
Get Price
Schneider Electric
60
277
FDA140603
FDA140603
Limited Stock
From
Get Price
Schneider Electric
60
277
FDA140605
FDA140605
Limited Stock
From
Get Price
Square D
60
277
FDA14070
FDA14070
Limited Stock
From
Get Price
Square D
70
277
FDA140701
FDA140701
Limited Stock
From
Get Price
Schneider Electric
70
277
FDA140703
FDA140703
Limited Stock
From
Get Price
Schneider Electric
70
277
FDA140705
FDA140705
Limited Stock
From
Get Price
Square D
70
277
FDA22070
FDA22070
Limited Stock
From
Get Price
Schneider Electric
70
240
FDA220701
FDA220701
Limited Stock
From
Get Price
Schneider Electric
70
240
FDA220702
FDA220702
Limited Stock
From
Get Price
Schneider Electric
70
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.