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
HDA36125ABSR
HDA36125ABSR
In Stock
From
$1,646.69
Square D
125
600
HDA36125ABSRYP
HDA36125ABSRYP
In Stock
From
$1,646.69
Square D
125
600
HDA36125ABSV
HDA36125ABSV
In Stock
From
$1,646.69
Square D
125
600
HDA36125ABSVYP
HDA36125ABSVYP
In Stock
From
$1,646.69
Square D
125
600
HDA36125ABUA
HDA36125ABUA
In Stock
From
$1,646.69
Square D
125
600
HDA36125ABUAYP
HDA36125ABUAYP
In Stock
From
$1,646.69
Square D
125
600
HDA36125ABUD
HDA36125ABUD
In Stock
From
$1,646.69
Square D
125
600
HDA36125ABUDYP
HDA36125ABUDYP
In Stock
From
$1,646.69
Square D
125
600
HDA36125ABUH
HDA36125ABUH
In Stock
From
$1,646.69
Square D
125
600
HDA36125ABUHYP
HDA36125ABUHYP
In Stock
From
$1,646.69
Square D
125
600
HDA36125ABUJ
HDA36125ABUJ
In Stock
From
$1,646.69
Square D
125
600
HDA36125ABUJYP
HDA36125ABUJYP
In Stock
From
$1,646.69
Square D
125
600
HDA36125ABUK
HDA36125ABUK
In Stock
From
$1,646.69
Square D
125
600
HDA36125ABUKYP
HDA36125ABUKYP
In Stock
From
$1,646.69
Square D
125
600
HDA36125ABUN
HDA36125ABUN
In Stock
From
$1,646.69
Square D
125
600
HDA36125ABUNYP
HDA36125ABUNYP
In Stock
From
$1,646.69
Square D
125
600
HDA36125ABUO
HDA36125ABUO
In Stock
From
$1,646.69
Square D
125
600
HDA36125ABUOYP
HDA36125ABUOYP
In Stock
From
$1,646.69
Square D
125
600
HDA36125ABUP
HDA36125ABUP
In Stock
From
$1,646.69
Square D
125
600
HDA36125ABUPYP
HDA36125ABUPYP
In Stock
From
$1,646.69
Square D
125
600
HDA36125ABUR
HDA36125ABUR
In Stock
From
$1,646.69
Square D
125
600
HDA36125ABURYP
HDA36125ABURYP
In Stock
From
$1,646.69
Square D
125
600
HDA36125ABUS
HDA36125ABUS
In Stock
From
$1,646.69
Square D
125
600
HDA36125ABUSYP
HDA36125ABUSYP
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.