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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
TJD432300
TJD432300
In Stock
From
$517.45
General Electric
300
240
TJD432300WL
TJD432300WL
In Stock
From
$946.70
General Electric
300
240
TJD432400
TJD432400
In Stock
From
$578.41
General Electric
400
240
TJJ426225
TJJ426225
In Stock
From
$522.23
General Electric
225
600
TJJ426400
TJJ426400
In Stock
From
$900.54
General Electric
400
600
TJJ436200
TJJ436200
In Stock
From
$646.26
General Electric
200
600
TJJ436250
TJJ436250
In Stock
From
$766.88
General Electric
250
600
TJJ436300
TJJ436300
In Stock
From
$1,015.44
General Electric
300
600
TJJ436300WL
TJJ436300WL
In Stock
From
$1,939.42
General Electric
300
600
TJJ436350
TJJ436350
In Stock
From
$999.18
General Electric
350
600
TJJ436400
TJJ436400
In Stock
From
$1,033.25
General Electric
400
600
TJJ436400WL
TJJ436400WL
In Stock
From
$1,033.25
General Electric
400
600
TJJ436Y400
TJJ436Y400
In Stock
From
$1,033.25
General Electric
400
600
TJK426400WL
TJK426400WL
In Stock
From
$1,342.96
General Electric
400
600
TJK426F000
TJK426F000
In Stock
From
$419.67
General Electric
400
600
TJK436200WL
TJK436200WL
In Stock
From
$859.25
General Electric
200
600
TJK436250WL
TJK436250WL
In Stock
From
$910.28
General Electric
250
600
TJK436300WL
TJK436300WL
In Stock
From
$1,369.92
General Electric
300
600
TJK436350
TJK436350
In Stock
From
$1,531.37
General Electric
350
600
TJK436400
TJK436400
In Stock
From
$1,092.81
General Electric
400
600
TJK436400WL
TJK436400WL
In Stock
From
$2,006.33
General Electric
400
600
TJK626F000
TJK626F000
In Stock
From
$983.56
General Electric
600
600
TJK636400WL
TJK636400WL
In Stock
From
$588.43
General Electric
400
600
TJK636500WL
TJK636500WL
In Stock
From
$1,976.15
General Electric
500
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.