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
JD62B225H
JD62B225H
Limited Stock
From
Get Price
Siemens
225
600
JD62B225HL
JD62B225HL
Limited Stock
From
Get Price
Siemens
225
600
JD62B250H
JD62B250H
Limited Stock
From
Get Price
Siemens
250
600
JD62B250HL
JD62B250HL
Limited Stock
From
Get Price
Siemens
250
600
JD62B300H
JD62B300H
Limited Stock
From
Get Price
Siemens
300
600
JD62B300HL
JD62B300HL
Limited Stock
From
Get Price
Siemens
300
600
JD62B350H
JD62B350H
Limited Stock
From
Get Price
Siemens
350
600
JD62B350HL
JD62B350HL
Limited Stock
From
Get Price
Siemens
350
600
JD62B400H
JD62B400H
Limited Stock
From
Get Price
Siemens
400
600
JD62B400HL
JD62B400HL
Limited Stock
From
Get Price
Siemens
400
600
JD62M200
JD62M200
Limited Stock
From
Get Price
Siemens
200
600
JD62M225
JD62M225
Limited Stock
From
Get Price
Siemens
225
600
JD62M250
JD62M250
Limited Stock
From
Get Price
Siemens
250
600
JD62M300
JD62M300
Limited Stock
From
Get Price
Siemens
300
600
JD62M350
JD62M350
Limited Stock
From
Get Price
Siemens
350
600
JD62M400
JD62M400
Limited Stock
From
Get Price
Siemens
400
600
JD63M200H
JD63M200H
Limited Stock
From
Get Price
Siemens
200
600
JD63M200HL
JD63M200HL
Limited Stock
From
Get Price
Siemens
200
600
JD63M225H
JD63M225H
Limited Stock
From
Get Price
Siemens
225
600
JD63M225HL
JD63M225HL
Limited Stock
From
Get Price
Siemens
225
600
JD63M250H
JD63M250H
Limited Stock
From
Get Price
Siemens
250
600
JD63M250HL
JD63M250HL
Limited Stock
From
Get Price
Siemens
250
600
JD63M300H
JD63M300H
Limited Stock
From
Get Price
Siemens
300
600
JD63M300HL
JD63M300HL
Limited Stock
From
Get Price
Siemens
300
600
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.