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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
HDL26030UPYP
HDL26030UPYP
In Stock
From
$672.71
Square D
30
600
HDL26030UR
HDL26030UR
In Stock
From
$672.71
Square D
30
600
HDL26030URYP
HDL26030URYP
In Stock
From
$672.71
Square D
30
600
HDL26030US
HDL26030US
In Stock
From
$672.71
Square D
30
600
HDL26030USYP
HDL26030USYP
In Stock
From
$672.71
Square D
30
600
HDL26030YP
HDL26030YP
In Stock
From
$672.71
Square D
30
600
HDL26040AA
HDL26040AA
In Stock
From
$651.44
Square D
40
600
HDL26040AABC
HDL26040AABC
In Stock
From
$651.44
Square D
40
600
HDL26040AABCSD
HDL26040AABCSD
In Stock
From
$651.44
Square D
40
600
HDL26040AABCSDYP
HDL26040AABCSDYP
In Stock
From
$651.44
Square D
40
600
HDL26040AABCSH
HDL26040AABCSH
In Stock
From
$651.44
Square D
40
600
HDL26040AABCSHYP
HDL26040AABCSHYP
In Stock
From
$579.06
Square D
40
600
HDL26040AABCSJ
HDL26040AABCSJ
In Stock
From
$651.44
Square D
40
600
HDL26040AABCSJYP
HDL26040AABCSJYP
In Stock
From
$579.06
Square D
40
600
HDL26040AABCSK
HDL26040AABCSK
In Stock
From
$651.44
Square D
40
600
HDL26040AABCSKYP
HDL26040AABCSKYP
In Stock
From
$651.44
Square D
40
600
HDL26040AABCSL
HDL26040AABCSL
In Stock
From
$651.44
Square D
40
600
HDL26040AABCSLYP
HDL26040AABCSLYP
In Stock
From
$651.44
Square D
40
600
HDL26040AABCSN
HDL26040AABCSN
In Stock
From
$651.44
Square D
40
600
HDL26040AABCSNYP
HDL26040AABCSNYP
In Stock
From
$579.06
Square D
40
600
HDL26040AABCSP
HDL26040AABCSP
In Stock
From
$651.44
Square D
40
600
HDL26040AABCSPYP
HDL26040AABCSPYP
In Stock
From
$579.06
Square D
40
600
HDL26040AABCSR
HDL26040AABCSR
In Stock
From
$651.44
Square D
40
600
HDL26040AABCSRYP
HDL26040AABCSRYP
In Stock
From
$579.06
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.