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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
HGA36040BEUJYP
HGA36040BEUJYP
In Stock
From
$826.00
Square D
40
600
HGA36040BEUK
HGA36040BEUK
In Stock
From
$826.00
Square D
40
600
HGA36040BEUKYP
HGA36040BEUKYP
In Stock
From
$826.00
Square D
40
600
HGA36040BEUN
HGA36040BEUN
In Stock
From
$826.00
Square D
40
600
HGA36040BEUNYP
HGA36040BEUNYP
In Stock
From
$826.00
Square D
40
600
HGA36040BEUO
HGA36040BEUO
In Stock
From
$826.00
Square D
40
600
HGA36040BEUOYP
HGA36040BEUOYP
In Stock
From
$826.00
Square D
40
600
HGA36040BEUP
HGA36040BEUP
In Stock
From
$826.00
Square D
40
600
HGA36040BEUPYP
HGA36040BEUPYP
In Stock
From
$826.00
Square D
40
600
HGA36040BEUR
HGA36040BEUR
In Stock
From
$826.00
Square D
40
600
HGA36040BEURYP
HGA36040BEURYP
In Stock
From
$826.00
Square D
40
600
HGA36040BEUS
HGA36040BEUS
In Stock
From
$826.00
Square D
40
600
HGA36040BEUSYP
HGA36040BEUSYP
In Stock
From
$826.00
Square D
40
600
HGA36040BEYP
HGA36040BEYP
In Stock
From
$826.00
Square D
40
600
HGA36040BH
HGA36040BH
In Stock
From
$826.00
Square D
40
600
HGA36040BHSD
HGA36040BHSD
In Stock
From
$826.00
Square D
40
600
HGA36040BHSDYP
HGA36040BHSDYP
In Stock
From
$826.00
Square D
40
600
HGA36040BHSH
HGA36040BHSH
In Stock
From
$826.00
Square D
40
600
HGA36040BHSHYP
HGA36040BHSHYP
In Stock
From
$826.00
Square D
40
600
HGA36040BHSJ
HGA36040BHSJ
In Stock
From
$826.00
Square D
40
600
HGA36040BHSJYP
HGA36040BHSJYP
In Stock
From
$826.00
Square D
40
600
HGA36040BHSK
HGA36040BHSK
In Stock
From
$826.00
Square D
40
600
HGA36040BHSKYP
HGA36040BHSKYP
In Stock
From
$826.00
Square D
40
600
HGA36040BHSL
HGA36040BHSL
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.