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
HDL36040CABBKURYP
HDL36040CABBKURYP
In Stock
From
$729.58
Square D
40
600
HDL36040CABBKUS
HDL36040CABBKUS
In Stock
From
$820.78
Square D
40
600
HDL36040CABBKUSYP
HDL36040CABBKUSYP
In Stock
From
$729.58
Square D
40
600
HDL36040CABBKYP
HDL36040CABBKYP
In Stock
From
$820.78
Square D
40
600
HDL36040CABSD
HDL36040CABSD
In Stock
From
$820.78
Square D
40
600
HDL36040CABSDYP
HDL36040CABSDYP
In Stock
From
$820.78
Square D
40
600
HDL36040CABSH
HDL36040CABSH
In Stock
From
$820.78
Square D
40
600
HDL36040CABSHYP
HDL36040CABSHYP
In Stock
From
$729.58
Square D
40
600
HDL36040CABSJ
HDL36040CABSJ
In Stock
From
$820.78
Square D
40
600
HDL36040CABSJYP
HDL36040CABSJYP
In Stock
From
$820.78
Square D
40
600
HDL36040CABSK
HDL36040CABSK
In Stock
From
$820.78
Square D
40
600
HDL36040CABSKYP
HDL36040CABSKYP
In Stock
From
$729.58
Square D
40
600
HDL36040CABSL
HDL36040CABSL
In Stock
From
$820.78
Square D
40
600
HDL36040CABSLYP
HDL36040CABSLYP
In Stock
From
$820.78
Square D
40
600
HDL36040CABSN
HDL36040CABSN
In Stock
From
$820.78
Square D
40
600
HDL36040CABSNYP
HDL36040CABSNYP
In Stock
From
$820.78
Square D
40
600
HDL36040CABSP
HDL36040CABSP
In Stock
From
$820.78
Square D
40
600
HDL36040CABSPYP
HDL36040CABSPYP
In Stock
From
$820.78
Square D
40
600
HDL36040CABSR
HDL36040CABSR
In Stock
From
$820.78
Square D
40
600
HDL36040CABSRYP
HDL36040CABSRYP
In Stock
From
$820.78
Square D
40
600
HDL36040CABSV
HDL36040CABSV
In Stock
From
$820.78
Square D
40
600
HDL36040CABSVYP
HDL36040CABSVYP
In Stock
From
$820.78
Square D
40
600
HDL36040CABUA
HDL36040CABUA
In Stock
From
$729.58
Square D
40
600
HDL36040CABUAYP
HDL36040CABUAYP
In Stock
From
$820.78
Square D
40
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.