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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
HDA36125BCUNYP
HDA36125BCUNYP
In Stock
From
$1,646.69
Square D
125
600
HDA36125BCUO
HDA36125BCUO
In Stock
From
$1,646.69
Square D
125
600
HDA36125BCUOYP
HDA36125BCUOYP
In Stock
From
$1,646.69
Square D
125
600
HDA36125BCUP
HDA36125BCUP
In Stock
From
$1,646.69
Square D
125
600
HDA36125BCUPYP
HDA36125BCUPYP
In Stock
From
$1,646.69
Square D
125
600
HDA36125BCUR
HDA36125BCUR
In Stock
From
$1,646.69
Square D
125
600
HDA36125BCURYP
HDA36125BCURYP
In Stock
From
$1,646.69
Square D
125
600
HDA36125BCUS
HDA36125BCUS
In Stock
From
$1,646.69
Square D
125
600
HDA36125BCUSYP
HDA36125BCUSYP
In Stock
From
$1,646.69
Square D
125
600
HDA36125BCYP
HDA36125BCYP
In Stock
From
$1,646.69
Square D
125
600
HDA36125BE
HDA36125BE
In Stock
From
$1,646.69
Square D
125
600
HDA36125BESD
HDA36125BESD
In Stock
From
$1,646.69
Square D
125
600
HDA36125BESDYP
HDA36125BESDYP
In Stock
From
$1,646.69
Square D
125
600
HDA36125BESH
HDA36125BESH
In Stock
From
$1,646.69
Square D
125
600
HDA36125BESHYP
HDA36125BESHYP
In Stock
From
$1,646.69
Square D
125
600
HDA36125BESJ
HDA36125BESJ
In Stock
From
$1,646.69
Square D
125
600
HDA36125BESJYP
HDA36125BESJYP
In Stock
From
$1,646.69
Square D
125
600
HDA36125BESK
HDA36125BESK
In Stock
From
$1,646.69
Square D
125
600
HDA36125BESKYP
HDA36125BESKYP
In Stock
From
$1,646.69
Square D
125
600
HDA36125BESL
HDA36125BESL
In Stock
From
$1,646.69
Square D
125
600
HDA36125BESLYP
HDA36125BESLYP
In Stock
From
$1,646.69
Square D
125
600
HDA36125BESN
HDA36125BESN
In Stock
From
$1,646.69
Square D
125
600
HDA36125BESNYP
HDA36125BESNYP
In Stock
From
$1,646.69
Square D
125
600
HDA36125BESP
HDA36125BESP
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.