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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
HDA36020BKSHYP
HDA36020BKSHYP
In Stock
From
$801.77
Square D
20
600
HDA36020BKSJ
HDA36020BKSJ
In Stock
From
$801.77
Square D
20
600
HDA36020BKSJYP
HDA36020BKSJYP
In Stock
From
$801.77
Square D
20
600
HDA36020BKSK
HDA36020BKSK
In Stock
From
$801.77
Square D
20
600
HDA36020BKSKYP
HDA36020BKSKYP
In Stock
From
$801.77
Square D
20
600
HDA36020BKSL
HDA36020BKSL
In Stock
From
$801.77
Square D
20
600
HDA36020BKSLYP
HDA36020BKSLYP
In Stock
From
$801.77
Square D
20
600
HDA36020BKSN
HDA36020BKSN
In Stock
From
$801.77
Square D
20
600
HDA36020BKSNYP
HDA36020BKSNYP
In Stock
From
$801.77
Square D
20
600
HDA36020BKSP
HDA36020BKSP
In Stock
From
$801.77
Square D
20
600
HDA36020BKSPYP
HDA36020BKSPYP
In Stock
From
$801.77
Square D
20
600
HDA36020BKSR
HDA36020BKSR
In Stock
From
$801.77
Square D
20
600
HDA36020BKSRYP
HDA36020BKSRYP
In Stock
From
$801.77
Square D
20
600
HDA36020BKSV
HDA36020BKSV
In Stock
From
$801.77
Square D
20
600
HDA36020BKSVYP
HDA36020BKSVYP
In Stock
From
$801.77
Square D
20
600
HDA36020BKUA
HDA36020BKUA
In Stock
From
$801.77
Square D
20
600
HDA36020BKUAYP
HDA36020BKUAYP
In Stock
From
$801.77
Square D
20
600
HDA36020BKUD
HDA36020BKUD
In Stock
From
$801.77
Square D
20
600
HDA36020BKUDYP
HDA36020BKUDYP
In Stock
From
$801.77
Square D
20
600
HDA36020BKUH
HDA36020BKUH
In Stock
From
$801.77
Square D
20
600
HDA36020BKUHYP
HDA36020BKUHYP
In Stock
From
$801.77
Square D
20
600
HDA36020BKUJ
HDA36020BKUJ
In Stock
From
$801.77
Square D
20
600
HDA36020BKUJYP
HDA36020BKUJYP
In Stock
From
$801.77
Square D
20
600
HDA36020BKUK
HDA36020BKUK
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.