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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
HGA36050AASHYP
HGA36050AASHYP
In Stock
From
$778.84
Square D
50
600
HGA36050AASJ
HGA36050AASJ
In Stock
From
$778.84
Square D
50
600
HGA36050AASJYP
HGA36050AASJYP
In Stock
From
$778.84
Square D
50
600
HGA36050AASK
HGA36050AASK
In Stock
From
$778.84
Square D
50
600
HGA36050AASKYP
HGA36050AASKYP
In Stock
From
$778.84
Square D
50
600
HGA36050AASL
HGA36050AASL
In Stock
From
$778.84
Square D
50
600
HGA36050AASLYP
HGA36050AASLYP
In Stock
From
$778.84
Square D
50
600
HGA36050AASN
HGA36050AASN
In Stock
From
$778.84
Square D
50
600
HGA36050AASNYP
HGA36050AASNYP
In Stock
From
$778.84
Square D
50
600
HGA36050AASP
HGA36050AASP
In Stock
From
$778.84
Square D
50
600
HGA36050AASPYP
HGA36050AASPYP
In Stock
From
$778.84
Square D
50
600
HGA36050AASR
HGA36050AASR
In Stock
From
$778.84
Square D
50
600
HGA36050AASRYP
HGA36050AASRYP
In Stock
From
$778.84
Square D
50
600
HGA36050AASV
HGA36050AASV
In Stock
From
$778.84
Square D
50
600
HGA36050AASVYP
HGA36050AASVYP
In Stock
From
$778.84
Square D
50
600
HGA36050AAUA
HGA36050AAUA
In Stock
From
$778.84
Square D
50
600
HGA36050AAUAYP
HGA36050AAUAYP
In Stock
From
$778.84
Square D
50
600
HGA36050AAUD
HGA36050AAUD
In Stock
From
$778.84
Square D
50
600
HGA36050AAUDYP
HGA36050AAUDYP
In Stock
From
$778.84
Square D
50
600
HGA36050AAUH
HGA36050AAUH
In Stock
From
$778.84
Square D
50
600
HGA36050AAUHYP
HGA36050AAUHYP
In Stock
From
$778.84
Square D
50
600
HGA36050AAUJ
HGA36050AAUJ
In Stock
From
$778.84
Square D
50
600
HGA36050AAUJYP
HGA36050AAUJYP
In Stock
From
$778.84
Square D
50
600
HGA36050AAUK
HGA36050AAUK
In Stock
From
$778.84
Square D
50
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.