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
431252
431252
Limited Stock
From
Get Price
General Electric
80
690
431258
431258
Limited Stock
From
Get Price
General Electric
100
690
431264
431264
Limited Stock
From
Get Price
General Electric
125
690
431270
431270
Limited Stock
From
Get Price
General Electric
160
690
431300
431300
Limited Stock
From
Get Price
General Electric
80
690
431306
431306
Limited Stock
From
Get Price
General Electric
100
690
431318
431318
Limited Stock
From
Get Price
General Electric
160
690
431363
431363
Limited Stock
From
Get Price
General Electric
80
690
431369
431369
Limited Stock
From
Get Price
General Electric
100
690
431375
431375
Limited Stock
From
Get Price
General Electric
125
690
431381
431381
Limited Stock
From
Get Price
General Electric
160
690
431458
431458
Limited Stock
From
Get Price
General Electric
80
690
431464
431464
Limited Stock
From
Get Price
General Electric
100
690
431470
431470
Limited Stock
From
Get Price
General Electric
125
690
431476
431476
Limited Stock
From
Get Price
General Electric
160
690
431545
431545
Limited Stock
From
Get Price
General Electric
80
690
431557
431557
Limited Stock
From
Get Price
General Electric
125
690
431563
431563
Limited Stock
From
Get Price
General Electric
160
690
431751
431751
Limited Stock
From
Get Price
General Electric
80
690
431763
431763
Limited Stock
From
Get Price
General Electric
12
690
431769
431769
Limited Stock
From
Get Price
General Electric
160
690
431838
431838
Limited Stock
From
Get Price
General Electric
80
690
431844
431844
Limited Stock
From
Get Price
General Electric
100
690
431886
431886
Limited Stock
From
Get Price
General Electric
80
690
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.