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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
HDA36125BEUSYP
HDA36125BEUSYP
In Stock
From
$1,646.69
Square D
125
600
HDA36125BEYP
HDA36125BEYP
In Stock
From
$1,646.69
Square D
125
600
HDA36125BH
HDA36125BH
In Stock
From
$1,646.69
Square D
125
600
HDA36125BHSD
HDA36125BHSD
In Stock
From
$1,646.69
Square D
125
600
HDA36125BHSDYP
HDA36125BHSDYP
In Stock
From
$1,646.69
Square D
125
600
HDA36125BHSH
HDA36125BHSH
In Stock
From
$1,646.69
Square D
125
600
HDA36125BHSHYP
HDA36125BHSHYP
In Stock
From
$1,646.69
Square D
125
600
HDA36125BHSJ
HDA36125BHSJ
In Stock
From
$1,646.69
Square D
125
600
HDA36125BHSJYP
HDA36125BHSJYP
In Stock
From
$1,646.69
Square D
125
600
HDA36125BHSK
HDA36125BHSK
In Stock
From
$1,646.69
Square D
125
600
HDA36125BHSKYP
HDA36125BHSKYP
In Stock
From
$1,646.69
Square D
125
600
HDA36125BHSL
HDA36125BHSL
In Stock
From
$1,646.69
Square D
125
600
HDA36125BHSLYP
HDA36125BHSLYP
In Stock
From
$1,646.69
Square D
125
600
HDA36125BHSN
HDA36125BHSN
In Stock
From
$1,646.69
Square D
125
600
HDA36125BHSNYP
HDA36125BHSNYP
In Stock
From
$1,646.69
Square D
125
600
HDA36125BHSP
HDA36125BHSP
In Stock
From
$1,646.69
Square D
125
600
HDA36125BHSPYP
HDA36125BHSPYP
In Stock
From
$1,646.69
Square D
125
600
HDA36125BHSR
HDA36125BHSR
In Stock
From
$1,646.69
Square D
125
600
HDA36125BHSRYP
HDA36125BHSRYP
In Stock
From
$1,646.69
Square D
125
600
HDA36125BHSV
HDA36125BHSV
In Stock
From
$1,646.69
Square D
125
600
HDA36125BHSVYP
HDA36125BHSVYP
In Stock
From
$1,646.69
Square D
125
600
HDA36125BHUA
HDA36125BHUA
In Stock
From
$1,646.69
Square D
125
600
HDA36125BHUAYP
HDA36125BHUAYP
In Stock
From
$1,646.69
Square D
125
600
HDA36125BHUD
HDA36125BHUD
In Stock
From
$1,646.69
Square D
125
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.