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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
HDL36090AABKUSYP
HDL36090AABKUSYP
In Stock
From
$1,838.92
Square D
90
600
HDL36090AABKYP
HDL36090AABKYP
In Stock
From
$1,838.92
Square D
90
600
HDL36090AASD
HDL36090AASD
In Stock
From
$1,838.92
Square D
90
600
HDL36090AASDYP
HDL36090AASDYP
In Stock
From
$1,838.92
Square D
90
600
HDL36090AASH
HDL36090AASH
In Stock
From
$1,838.92
Square D
90
600
HDL36090AASHYP
HDL36090AASHYP
In Stock
From
$1,838.92
Square D
90
600
HDL36090AASJ
HDL36090AASJ
In Stock
From
$1,838.92
Square D
90
600
HDL36090AASJYP
HDL36090AASJYP
In Stock
From
$1,838.92
Square D
90
600
HDL36090AASK
HDL36090AASK
In Stock
From
$1,838.92
Square D
90
600
HDL36090AASKYP
HDL36090AASKYP
In Stock
From
$1,838.92
Square D
90
600
HDL36090AASL
HDL36090AASL
In Stock
From
$1,838.92
Square D
90
600
HDL36090AASLYP
HDL36090AASLYP
In Stock
From
$1,838.92
Square D
90
600
HDL36090AASN
HDL36090AASN
In Stock
From
$1,838.92
Square D
90
600
HDL36090AASNYP
HDL36090AASNYP
In Stock
From
$1,838.92
Square D
90
600
HDL36090AASP
HDL36090AASP
In Stock
From
$1,838.92
Square D
90
600
HDL36090AASPYP
HDL36090AASPYP
In Stock
From
$1,838.92
Square D
90
600
HDL36090AASR
HDL36090AASR
In Stock
From
$1,838.92
Square D
90
600
HDL36090AASRYP
HDL36090AASRYP
In Stock
From
$1,838.92
Square D
90
600
HDL36090AASV
HDL36090AASV
In Stock
From
$1,838.92
Square D
90
600
HDL36090AASVYP
HDL36090AASVYP
In Stock
From
$1,838.92
Square D
90
600
HDL36090AAUA
HDL36090AAUA
In Stock
From
$1,838.92
Square D
90
600
HDL36090AAUAYP
HDL36090AAUAYP
In Stock
From
$1,838.92
Square D
90
600
HDL36090AAUD
HDL36090AAUD
In Stock
From
$1,838.92
Square D
90
600
HDL36090AAUDYP
HDL36090AAUDYP
In Stock
From
$1,838.92
Square D
90
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.