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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
HDA36100ABSK
HDA36100ABSK
In Stock
From
$1,782.47
Square D
100
600
HDA36100ABSKYP
HDA36100ABSKYP
In Stock
From
$1,782.47
Square D
100
600
HDA36100ABSL
HDA36100ABSL
In Stock
From
$1,782.47
Square D
100
600
HDA36100ABSLYP
HDA36100ABSLYP
In Stock
From
$1,782.47
Square D
100
600
HDA36100ABSN
HDA36100ABSN
In Stock
From
$1,782.47
Square D
100
600
HDA36100ABSNYP
HDA36100ABSNYP
In Stock
From
$1,782.47
Square D
100
600
HDA36100ABSP
HDA36100ABSP
In Stock
From
$1,782.47
Square D
100
600
HDA36100ABSPYP
HDA36100ABSPYP
In Stock
From
$1,782.47
Square D
100
600
HDA36100ABSR
HDA36100ABSR
In Stock
From
$1,782.47
Square D
100
600
HDA36100ABSRYP
HDA36100ABSRYP
In Stock
From
$1,782.47
Square D
100
600
HDA36100ABSV
HDA36100ABSV
In Stock
From
$1,782.47
Square D
100
600
HDA36100ABSVYP
HDA36100ABSVYP
In Stock
From
$1,782.47
Square D
100
600
HDA36100ABUA
HDA36100ABUA
In Stock
From
$1,782.47
Square D
100
600
HDA36100ABUAYP
HDA36100ABUAYP
In Stock
From
$1,782.47
Square D
100
600
HDA36100ABUD
HDA36100ABUD
In Stock
From
$1,782.47
Square D
100
600
HDA36100ABUDYP
HDA36100ABUDYP
In Stock
From
$1,782.47
Square D
100
600
HDA36100ABUH
HDA36100ABUH
In Stock
From
$1,782.47
Square D
100
600
HDA36100ABUHYP
HDA36100ABUHYP
In Stock
From
$1,782.47
Square D
100
600
HDA36100ABUJ
HDA36100ABUJ
In Stock
From
$1,782.47
Square D
100
600
HDA36100ABUJYP
HDA36100ABUJYP
In Stock
From
$1,782.47
Square D
100
600
HDA36100ABUK
HDA36100ABUK
In Stock
From
$1,782.47
Square D
100
600
HDA36100ABUKYP
HDA36100ABUKYP
In Stock
From
$1,782.47
Square D
100
600
HDA36100ABUN
HDA36100ABUN
In Stock
From
$1,782.47
Square D
100
600
HDA36100ABUNYP
HDA36100ABUNYP
In Stock
From
$1,782.47
Square D
100
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.