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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
HGA36040AABKUSYP
HGA36040AABKUSYP
In Stock
From
$826.00
Square D
40
600
HGA36040AABKYP
HGA36040AABKYP
In Stock
From
$826.00
Square D
40
600
HGA36040AASD
HGA36040AASD
In Stock
From
$826.00
Square D
40
600
HGA36040AASDYP
HGA36040AASDYP
In Stock
From
$826.00
Square D
40
600
HGA36040AASH
HGA36040AASH
In Stock
From
$826.00
Square D
40
600
HGA36040AASHYP
HGA36040AASHYP
In Stock
From
$826.00
Square D
40
600
HGA36040AASJ
HGA36040AASJ
In Stock
From
$826.00
Square D
40
600
HGA36040AASJYP
HGA36040AASJYP
In Stock
From
$826.00
Square D
40
600
HGA36040AASK
HGA36040AASK
In Stock
From
$826.00
Square D
40
600
HGA36040AASKYP
HGA36040AASKYP
In Stock
From
$826.00
Square D
40
600
HGA36040AASL
HGA36040AASL
In Stock
From
$826.00
Square D
40
600
HGA36040AASLYP
HGA36040AASLYP
In Stock
From
$826.00
Square D
40
600
HGA36040AASN
HGA36040AASN
In Stock
From
$826.00
Square D
40
600
HGA36040AASNYP
HGA36040AASNYP
In Stock
From
$826.00
Square D
40
600
HGA36040AASP
HGA36040AASP
In Stock
From
$826.00
Square D
40
600
HGA36040AASPYP
HGA36040AASPYP
In Stock
From
$826.00
Square D
40
600
HGA36040AASR
HGA36040AASR
In Stock
From
$826.00
Square D
40
600
HGA36040AASRYP
HGA36040AASRYP
In Stock
From
$826.00
Square D
40
600
HGA36040AASV
HGA36040AASV
In Stock
From
$826.00
Square D
40
600
HGA36040AASVYP
HGA36040AASVYP
In Stock
From
$826.00
Square D
40
600
HGA36040AAUA
HGA36040AAUA
In Stock
From
$826.00
Square D
40
600
HGA36040AAUAYP
HGA36040AAUAYP
In Stock
From
$826.00
Square D
40
600
HGA36040AAUD
HGA36040AAUD
In Stock
From
$826.00
Square D
40
600
HGA36040AAUDYP
HGA36040AAUDYP
In Stock
From
$826.00
Square D
40
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.