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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
HGA36030AFBHUOYP
HGA36030AFBHUOYP
In Stock
From
$841.30
Square D
30
600
HGA36030AFBHUP
HGA36030AFBHUP
In Stock
From
$841.30
Square D
30
600
HGA36030AFBHUPYP
HGA36030AFBHUPYP
In Stock
From
$841.30
Square D
30
600
HGA36030AFBHUR
HGA36030AFBHUR
In Stock
From
$841.30
Square D
30
600
HGA36030AFBHURYP
HGA36030AFBHURYP
In Stock
From
$841.30
Square D
30
600
HGA36030AFBHUS
HGA36030AFBHUS
In Stock
From
$841.30
Square D
30
600
HGA36030AFBHUSYP
HGA36030AFBHUSYP
In Stock
From
$841.30
Square D
30
600
HGA36030AFBHYP
HGA36030AFBHYP
In Stock
From
$841.30
Square D
30
600
HGA36030AFBK
HGA36030AFBK
In Stock
From
$841.30
Square D
30
600
HGA36030AFBKSD
HGA36030AFBKSD
In Stock
From
$841.30
Square D
30
600
HGA36030AFBKSDYP
HGA36030AFBKSDYP
In Stock
From
$841.30
Square D
30
600
HGA36030AFBKSH
HGA36030AFBKSH
In Stock
From
$841.30
Square D
30
600
HGA36030AFBKSHYP
HGA36030AFBKSHYP
In Stock
From
$841.30
Square D
30
600
HGA36030AFBKSJ
HGA36030AFBKSJ
In Stock
From
$841.30
Square D
30
600
HGA36030AFBKSJYP
HGA36030AFBKSJYP
In Stock
From
$841.30
Square D
30
600
HGA36030AFBKSK
HGA36030AFBKSK
In Stock
From
$841.30
Square D
30
600
HGA36030AFBKSKYP
HGA36030AFBKSKYP
In Stock
From
$841.30
Square D
30
600
HGA36030AFBKSL
HGA36030AFBKSL
In Stock
From
$841.30
Square D
30
600
HGA36030AFBKSLYP
HGA36030AFBKSLYP
In Stock
From
$841.30
Square D
30
600
HGA36030AFBKSN
HGA36030AFBKSN
In Stock
From
$841.30
Square D
30
600
HGA36030AFBKSNYP
HGA36030AFBKSNYP
In Stock
From
$841.30
Square D
30
600
HGA36030AFBKSP
HGA36030AFBKSP
In Stock
From
$841.30
Square D
30
600
HGA36030AFBKSPYP
HGA36030AFBKSPYP
In Stock
From
$841.30
Square D
30
600
HGA36030AFBKSR
HGA36030AFBKSR
In Stock
From
$841.30
Square D
30
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.