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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
HDA36100ABUOYP
HDA36100ABUOYP
In Stock
From
$1,782.47
Square D
100
600
HDA36100ABUP
HDA36100ABUP
In Stock
From
$1,782.47
Square D
100
600
HDA36100ABUPYP
HDA36100ABUPYP
In Stock
From
$1,782.47
Square D
100
600
HDA36100ABUR
HDA36100ABUR
In Stock
From
$1,782.47
Square D
100
600
HDA36100ABURYP
HDA36100ABURYP
In Stock
From
$1,782.47
Square D
100
600
HDA36100ABUS
HDA36100ABUS
In Stock
From
$1,782.47
Square D
100
600
HDA36100ABUSYP
HDA36100ABUSYP
In Stock
From
$1,782.47
Square D
100
600
HDA36100ABYP
HDA36100ABYP
In Stock
From
$1,782.47
Square D
100
600
HDA36100AE
HDA36100AE
In Stock
From
$1,782.47
Square D
100
600
HDA36100AEBC
HDA36100AEBC
In Stock
From
$1,782.47
Square D
100
600
HDA36100AEBCSD
HDA36100AEBCSD
In Stock
From
$1,782.47
Square D
100
600
HDA36100AEBCSDYP
HDA36100AEBCSDYP
In Stock
From
$1,782.47
Square D
100
600
HDA36100AEBCSH
HDA36100AEBCSH
In Stock
From
$1,782.47
Square D
100
600
HDA36100AEBCSHYP
HDA36100AEBCSHYP
In Stock
From
$1,782.47
Square D
100
600
HDA36100AEBCSJ
HDA36100AEBCSJ
In Stock
From
$1,782.47
Square D
100
600
HDA36100AEBCSJYP
HDA36100AEBCSJYP
In Stock
From
$1,782.47
Square D
100
600
HDA36100AEBCSK
HDA36100AEBCSK
In Stock
From
$1,782.47
Square D
100
600
HDA36100AEBCSKYP
HDA36100AEBCSKYP
In Stock
From
$1,782.47
Square D
100
600
HDA36100AEBCSL
HDA36100AEBCSL
In Stock
From
$1,782.47
Square D
100
600
HDA36100AEBCSLYP
HDA36100AEBCSLYP
In Stock
From
$1,782.47
Square D
100
600
HDA36100AEBCSN
HDA36100AEBCSN
In Stock
From
$1,782.47
Square D
100
600
HDA36100AEBCSNYP
HDA36100AEBCSNYP
In Stock
From
$1,782.47
Square D
100
600
HDA36100AEBCSP
HDA36100AEBCSP
In Stock
From
$1,782.47
Square D
100
600
HDA36100AEBCSPYP
HDA36100AEBCSPYP
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.