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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
HDL36040CABUD
HDL36040CABUD
In Stock
From
$820.78
Square D
40
600
HDL36040CABUDYP
HDL36040CABUDYP
In Stock
From
$820.78
Square D
40
600
HDL36040CABUH
HDL36040CABUH
In Stock
From
$820.78
Square D
40
600
HDL36040CABUHYP
HDL36040CABUHYP
In Stock
From
$820.78
Square D
40
600
HDL36040CABUJ
HDL36040CABUJ
In Stock
From
$729.58
Square D
40
600
HDL36040CABUJYP
HDL36040CABUJYP
In Stock
From
$820.78
Square D
40
600
HDL36040CABUK
HDL36040CABUK
In Stock
From
$729.58
Square D
40
600
HDL36040CABUKYP
HDL36040CABUKYP
In Stock
From
$820.78
Square D
40
600
HDL36040CABUN
HDL36040CABUN
In Stock
From
$820.78
Square D
40
600
HDL36040CABUNYP
HDL36040CABUNYP
In Stock
From
$820.78
Square D
40
600
HDL36040CABUO
HDL36040CABUO
In Stock
From
$820.78
Square D
40
600
HDL36040CABUOYP
HDL36040CABUOYP
In Stock
From
$820.78
Square D
40
600
HDL36040CABUP
HDL36040CABUP
In Stock
From
$729.58
Square D
40
600
HDL36040CABUPYP
HDL36040CABUPYP
In Stock
From
$729.58
Square D
40
600
HDL36040CABUR
HDL36040CABUR
In Stock
From
$820.78
Square D
40
600
HDL36040CABURYP
HDL36040CABURYP
In Stock
From
$729.58
Square D
40
600
HDL36040CABUS
HDL36040CABUS
In Stock
From
$820.78
Square D
40
600
HDL36040CABUSYP
HDL36040CABUSYP
In Stock
From
$820.78
Square D
40
600
HDL36040CABYP
HDL36040CABYP
In Stock
From
$820.78
Square D
40
600
HDL36040CAE
HDL36040CAE
In Stock
From
$820.78
Square D
40
600
HDL36040CAEBC
HDL36040CAEBC
In Stock
From
$729.58
Square D
40
600
HDL36040CAEBCSD
HDL36040CAEBCSD
In Stock
From
$820.78
Square D
40
600
HDL36040CAEBCSDYP
HDL36040CAEBCSDYP
In Stock
From
$820.78
Square D
40
600
HDL36040CAEBCSH
HDL36040CAEBCSH
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.