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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
HDA36100U44XAF
HDA36100U44XAF
In Stock
From
$1,782.47
Square D
100
600
HDA36100U44XAFBC
HDA36100U44XAFBC
In Stock
From
$1,782.47
Square D
100
600
HDA36100U44XAFBCSD
HDA36100U44XAFBCSD
In Stock
From
$1,782.47
Square D
100
600
HDA36100U44XAFBCSDYP
HDA36100U44XAFBCSDYP
In Stock
From
$1,782.47
Square D
100
600
HDA36100U44XAFBCSH
HDA36100U44XAFBCSH
In Stock
From
$1,782.47
Square D
100
600
HDA36100U44XAFBCSHYP
HDA36100U44XAFBCSHYP
In Stock
From
$1,782.47
Square D
100
600
HDA36100U44XAFBCSJ
HDA36100U44XAFBCSJ
In Stock
From
$1,782.47
Square D
100
600
HDA36100U44XAFBCSJYP
HDA36100U44XAFBCSJYP
In Stock
From
$1,782.47
Square D
100
600
HDA36100U44XAFBCSK
HDA36100U44XAFBCSK
In Stock
From
$1,782.47
Square D
100
600
HDA36100U44XAFBCSKYP
HDA36100U44XAFBCSKYP
In Stock
From
$1,782.47
Square D
100
600
HDA36100U44XAFBCSL
HDA36100U44XAFBCSL
In Stock
From
$1,782.47
Square D
100
600
HDA36100U44XAFBCSLYP
HDA36100U44XAFBCSLYP
In Stock
From
$1,782.47
Square D
100
600
HDA36100U44XAFBCSN
HDA36100U44XAFBCSN
In Stock
From
$1,782.47
Square D
100
600
HDA36100U44XAFBCSNYP
HDA36100U44XAFBCSNYP
In Stock
From
$1,782.47
Square D
100
600
HDA36100U44XAFBCSP
HDA36100U44XAFBCSP
In Stock
From
$1,782.47
Square D
100
600
HDA36100U44XAFBCSPYP
HDA36100U44XAFBCSPYP
In Stock
From
$1,782.47
Square D
100
600
HDA36100U44XAFBCSR
HDA36100U44XAFBCSR
In Stock
From
$1,782.47
Square D
100
600
HDA36100U44XAFBCSRYP
HDA36100U44XAFBCSRYP
In Stock
From
$1,782.47
Square D
100
600
HDA36100U44XAFBCSV
HDA36100U44XAFBCSV
In Stock
From
$1,782.47
Square D
100
600
HDA36100U44XAFBCSVYP
HDA36100U44XAFBCSVYP
In Stock
From
$1,782.47
Square D
100
600
HDA36100U44XAFBCUA
HDA36100U44XAFBCUA
In Stock
From
$1,782.47
Square D
100
600
HDA36100U44XAFBCUAYP
HDA36100U44XAFBCUAYP
In Stock
From
$1,782.47
Square D
100
600
HDA36100U44XAFBCUD
HDA36100U44XAFBCUD
In Stock
From
$1,782.47
Square D
100
600
HDA36100U44XAFBCUDYP
HDA36100U44XAFBCUDYP
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.