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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
HGA36020UOYP
HGA36020UOYP
In Stock
From
$833.50
Square D
20
600
HGA36020UP
HGA36020UP
In Stock
From
$833.50
Square D
20
600
HGA36020UPYP
HGA36020UPYP
In Stock
From
$833.50
Square D
20
600
HGA36020UR
HGA36020UR
In Stock
From
$833.50
Square D
20
600
HGA36020URYP
HGA36020URYP
In Stock
From
$833.50
Square D
20
600
HGA36020US
HGA36020US
In Stock
From
$833.50
Square D
20
600
HGA36020USYP
HGA36020USYP
In Stock
From
$833.50
Square D
20
600
HGA36030AA
HGA36030AA
In Stock
From
$841.30
Square D
30
600
HGA36030AABC
HGA36030AABC
In Stock
From
$841.30
Square D
30
600
HGA36030AABCSD
HGA36030AABCSD
In Stock
From
$841.30
Square D
30
600
HGA36030AABCSDYP
HGA36030AABCSDYP
In Stock
From
$841.30
Square D
30
600
HGA36030AABCSH
HGA36030AABCSH
In Stock
From
$841.30
Square D
30
600
HGA36030AABCSHYP
HGA36030AABCSHYP
In Stock
From
$841.30
Square D
30
600
HGA36030AABCSJ
HGA36030AABCSJ
In Stock
From
$841.30
Square D
30
600
HGA36030AABCSJYP
HGA36030AABCSJYP
In Stock
From
$841.30
Square D
30
600
HGA36030AABCSK
HGA36030AABCSK
In Stock
From
$841.30
Square D
30
600
HGA36030AABCSKYP
HGA36030AABCSKYP
In Stock
From
$841.30
Square D
30
600
HGA36030AABCSL
HGA36030AABCSL
In Stock
From
$841.30
Square D
30
600
HGA36030AABCSLYP
HGA36030AABCSLYP
In Stock
From
$841.30
Square D
30
600
HGA36030AABCSN
HGA36030AABCSN
In Stock
From
$841.30
Square D
30
600
HGA36030AABCSNYP
HGA36030AABCSNYP
In Stock
From
$841.30
Square D
30
600
HGA36030AABCSP
HGA36030AABCSP
In Stock
From
$841.30
Square D
30
600
HGA36030AABCSPYP
HGA36030AABCSPYP
In Stock
From
$841.30
Square D
30
600
HGA36030AABCSR
HGA36030AABCSR
In Stock
From
$841.30
Square D
30
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.