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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
HDA36125AFUDYP
HDA36125AFUDYP
In Stock
From
$1,646.69
Square D
125
600
HDA36125AFUH
HDA36125AFUH
In Stock
From
$1,646.69
Square D
125
600
HDA36125AFUHYP
HDA36125AFUHYP
In Stock
From
$1,646.69
Square D
125
600
HDA36125AFUJ
HDA36125AFUJ
In Stock
From
$1,646.69
Square D
125
600
HDA36125AFUJYP
HDA36125AFUJYP
In Stock
From
$1,646.69
Square D
125
600
HDA36125AFUK
HDA36125AFUK
In Stock
From
$1,646.69
Square D
125
600
HDA36125AFUKYP
HDA36125AFUKYP
In Stock
From
$1,646.69
Square D
125
600
HDA36125AFUN
HDA36125AFUN
In Stock
From
$1,646.69
Square D
125
600
HDA36125AFUNYP
HDA36125AFUNYP
In Stock
From
$1,646.69
Square D
125
600
HDA36125AFUO
HDA36125AFUO
In Stock
From
$1,646.69
Square D
125
600
HDA36125AFUOYP
HDA36125AFUOYP
In Stock
From
$1,646.69
Square D
125
600
HDA36125AFUP
HDA36125AFUP
In Stock
From
$1,646.69
Square D
125
600
HDA36125AFUPYP
HDA36125AFUPYP
In Stock
From
$1,646.69
Square D
125
600
HDA36125AFUR
HDA36125AFUR
In Stock
From
$1,646.69
Square D
125
600
HDA36125AFURYP
HDA36125AFURYP
In Stock
From
$1,646.69
Square D
125
600
HDA36125AFUS
HDA36125AFUS
In Stock
From
$1,646.69
Square D
125
600
HDA36125AFUSYP
HDA36125AFUSYP
In Stock
From
$1,646.69
Square D
125
600
HDA36125AFYP
HDA36125AFYP
In Stock
From
$1,646.69
Square D
125
600
HDA36125BC
HDA36125BC
In Stock
From
$1,646.69
Square D
125
600
HDA36125BCSD
HDA36125BCSD
In Stock
From
$1,646.69
Square D
125
600
HDA36125BCSDYP
HDA36125BCSDYP
In Stock
From
$1,646.69
Square D
125
600
HDA36125BCSH
HDA36125BCSH
In Stock
From
$1,646.69
Square D
125
600
HDA36125BCSHYP
HDA36125BCSHYP
In Stock
From
$1,646.69
Square D
125
600
HDA36125BCSJ
HDA36125BCSJ
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.