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
JXD23S400AL
JXD23S400AL
In Stock
From
$1,151.89
Siemens
400
240
JXD62B225
JXD62B225
In Stock
From
$1,615.82
Siemens
225
600
JXD62B225L
JXD62B225L
In Stock
From
$1,198.57
Siemens
225
600
JXD62B250
JXD62B250
In Stock
From
$1,054.28
Siemens
250
600
JXD62B250L
JXD62B250L
In Stock
From
$1,220.68
Siemens
250
600
JXD62B300
JXD62B300
In Stock
From
$541.11
Siemens
300
600
JXD62B300L
JXD62B300L
In Stock
From
$824.62
Siemens
300
600
JXD62B350
JXD62B350
In Stock
From
$1,615.89
Siemens
350
600
JXD62B350L
JXD62B350L
In Stock
From
$1,560.34
Siemens
350
600
JXD62B400L
JXD62B400L
In Stock
From
$2,069.62
Siemens
400
600
JXD62H400
JXD62H400
In Stock
From
$2,069.62
Siemens
400
600
JXD62H400L
JXD62H400L
In Stock
From
$2,069.62
Siemens
400
600
JXD62L400
JXD62L400
In Stock
From
$2,069.62
Siemens
400
600
JXD62L400L
JXD62L400L
In Stock
From
$1,501.58
Siemens
400
600
JXD62M200
JXD62M200
In Stock
From
$757.56
Siemens
200
600
JXD62M200L
JXD62M200L
In Stock
From
$1,313.53
Siemens
200
600
JXD62M225
JXD62M225
In Stock
From
$1,198.57
Siemens
225
600
JXD62M250
JXD62M250
In Stock
From
$1,220.68
Siemens
250
600
JXD62M250L
JXD62M250L
In Stock
From
$1,220.68
Siemens
250
600
JXD62M300
JXD62M300
In Stock
From
$989.54
Siemens
300
600
JXD62M300L
JXD62M300L
In Stock
From
$989.54
Siemens
300
600
JXD62M350
JXD62M350
In Stock
From
$1,560.34
Siemens
350
600
JXD62M350L
JXD62M350L
In Stock
From
$1,560.34
Siemens
350
600
JXD62M400
JXD62M400
In Stock
From
$2,069.62
Siemens
400
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.