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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
HDA36020AABCSN
HDA36020AABCSN
In Stock
From
$801.77
Square D
20
600
HDA36020AABCSNYP
HDA36020AABCSNYP
In Stock
From
$801.77
Square D
20
600
HDA36020AABCSP
HDA36020AABCSP
In Stock
From
$801.77
Square D
20
600
HDA36020AABCSPYP
HDA36020AABCSPYP
In Stock
From
$801.77
Square D
20
600
HDA36020AABCSR
HDA36020AABCSR
In Stock
From
$801.77
Square D
20
600
HDA36020AABCSRYP
HDA36020AABCSRYP
In Stock
From
$801.77
Square D
20
600
HDA36020AABCSV
HDA36020AABCSV
In Stock
From
$801.77
Square D
20
600
HDA36020AABCSVYP
HDA36020AABCSVYP
In Stock
From
$801.77
Square D
20
600
HDA36020AABCUA
HDA36020AABCUA
In Stock
From
$801.77
Square D
20
600
HDA36020AABCUAYP
HDA36020AABCUAYP
In Stock
From
$801.77
Square D
20
600
HDA36020AABCUD
HDA36020AABCUD
In Stock
From
$801.77
Square D
20
600
HDA36020AABCUDYP
HDA36020AABCUDYP
In Stock
From
$801.77
Square D
20
600
HDA36020AABCUH
HDA36020AABCUH
In Stock
From
$801.77
Square D
20
600
HDA36020AABCUHYP
HDA36020AABCUHYP
In Stock
From
$801.77
Square D
20
600
HDA36020AABCUJ
HDA36020AABCUJ
In Stock
From
$801.77
Square D
20
600
HDA36020AABCUJYP
HDA36020AABCUJYP
In Stock
From
$801.77
Square D
20
600
HDA36020AABCUK
HDA36020AABCUK
In Stock
From
$801.77
Square D
20
600
HDA36020AABCUKYP
HDA36020AABCUKYP
In Stock
From
$801.77
Square D
20
600
HDA36020AABCUN
HDA36020AABCUN
In Stock
From
$801.77
Square D
20
600
HDA36020AABCUNYP
HDA36020AABCUNYP
In Stock
From
$801.77
Square D
20
600
HDA36020AABCUO
HDA36020AABCUO
In Stock
From
$801.77
Square D
20
600
HDA36020AABCUOYP
HDA36020AABCUOYP
In Stock
From
$801.77
Square D
20
600
HDA36020AABCUP
HDA36020AABCUP
In Stock
From
$801.77
Square D
20
600
HDA36020AABCUPYP
HDA36020AABCUPYP
In Stock
From
$801.77
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.