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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
HDA36125AFBKSP
HDA36125AFBKSP
In Stock
From
$1,646.69
Square D
125
600
HDA36125AFBKSPYP
HDA36125AFBKSPYP
In Stock
From
$1,646.69
Square D
125
600
HDA36125AFBKSR
HDA36125AFBKSR
In Stock
From
$1,646.69
Square D
125
600
HDA36125AFBKSRYP
HDA36125AFBKSRYP
In Stock
From
$1,646.69
Square D
125
600
HDA36125AFBKSV
HDA36125AFBKSV
In Stock
From
$1,646.69
Square D
125
600
HDA36125AFBKSVYP
HDA36125AFBKSVYP
In Stock
From
$1,646.69
Square D
125
600
HDA36125AFBKUA
HDA36125AFBKUA
In Stock
From
$1,646.69
Square D
125
600
HDA36125AFBKUAYP
HDA36125AFBKUAYP
In Stock
From
$1,646.69
Square D
125
600
HDA36125AFBKUD
HDA36125AFBKUD
In Stock
From
$1,646.69
Square D
125
600
HDA36125AFBKUDYP
HDA36125AFBKUDYP
In Stock
From
$1,646.69
Square D
125
600
HDA36125AFBKUH
HDA36125AFBKUH
In Stock
From
$1,646.69
Square D
125
600
HDA36125AFBKUHYP
HDA36125AFBKUHYP
In Stock
From
$1,646.69
Square D
125
600
HDA36125AFBKUJ
HDA36125AFBKUJ
In Stock
From
$1,646.69
Square D
125
600
HDA36125AFBKUJYP
HDA36125AFBKUJYP
In Stock
From
$1,646.69
Square D
125
600
HDA36125AFBKUK
HDA36125AFBKUK
In Stock
From
$1,646.69
Square D
125
600
HDA36125AFBKUKYP
HDA36125AFBKUKYP
In Stock
From
$1,646.69
Square D
125
600
HDA36125AFBKUN
HDA36125AFBKUN
In Stock
From
$1,646.69
Square D
125
600
HDA36125AFBKUNYP
HDA36125AFBKUNYP
In Stock
From
$1,646.69
Square D
125
600
HDA36125AFBKUO
HDA36125AFBKUO
In Stock
From
$1,646.69
Square D
125
600
HDA36125AFBKUOYP
HDA36125AFBKUOYP
In Stock
From
$1,646.69
Square D
125
600
HDA36125AFBKUP
HDA36125AFBKUP
In Stock
From
$1,646.69
Square D
125
600
HDA36125AFBKUPYP
HDA36125AFBKUPYP
In Stock
From
$1,646.69
Square D
125
600
HDA36125AFBKUR
HDA36125AFBKUR
In Stock
From
$1,646.69
Square D
125
600
HDA36125AFBKURYP
HDA36125AFBKURYP
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.