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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
HGA36020AEUDYP
HGA36020AEUDYP
In Stock
From
$833.50
Square D
20
600
HGA36020AEUH
HGA36020AEUH
In Stock
From
$833.50
Square D
20
600
HGA36020AEUHYP
HGA36020AEUHYP
In Stock
From
$833.50
Square D
20
600
HGA36020AEUJ
HGA36020AEUJ
In Stock
From
$833.50
Square D
20
600
HGA36020AEUJYP
HGA36020AEUJYP
In Stock
From
$833.50
Square D
20
600
HGA36020AEUK
HGA36020AEUK
In Stock
From
$833.50
Square D
20
600
HGA36020AEUKYP
HGA36020AEUKYP
In Stock
From
$833.50
Square D
20
600
HGA36020AEUN
HGA36020AEUN
In Stock
From
$833.50
Square D
20
600
HGA36020AEUNYP
HGA36020AEUNYP
In Stock
From
$833.50
Square D
20
600
HGA36020AEUO
HGA36020AEUO
In Stock
From
$833.50
Square D
20
600
HGA36020AEUOYP
HGA36020AEUOYP
In Stock
From
$833.50
Square D
20
600
HGA36020AEUP
HGA36020AEUP
In Stock
From
$833.50
Square D
20
600
HGA36020AEUPYP
HGA36020AEUPYP
In Stock
From
$833.50
Square D
20
600
HGA36020AEUR
HGA36020AEUR
In Stock
From
$833.50
Square D
20
600
HGA36020AEURYP
HGA36020AEURYP
In Stock
From
$833.50
Square D
20
600
HGA36020AEUS
HGA36020AEUS
In Stock
From
$833.50
Square D
20
600
HGA36020AEUSYP
HGA36020AEUSYP
In Stock
From
$833.50
Square D
20
600
HGA36020AEYP
HGA36020AEYP
In Stock
From
$833.50
Square D
20
600
HGA36020AF
HGA36020AF
In Stock
From
$833.50
Square D
20
600
HGA36020AFBC
HGA36020AFBC
In Stock
From
$833.50
Square D
20
600
HGA36020AFBCSD
HGA36020AFBCSD
In Stock
From
$833.50
Square D
20
600
HGA36020AFBCSDYP
HGA36020AFBCSDYP
In Stock
From
$833.50
Square D
20
600
HGA36020AFBCSH
HGA36020AFBCSH
In Stock
From
$833.50
Square D
20
600
HGA36020AFBCSHYP
HGA36020AFBCSHYP
In Stock
From
$833.50
Square D
20
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.