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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
HGA36100BKUDYP
HGA36100BKUDYP
In Stock
From
$1,855.98
Square D
100
600
HGA36100BKUH
HGA36100BKUH
In Stock
From
$1,854.47
Square D
100
600
HGA36100BKUHYP
HGA36100BKUHYP
In Stock
From
$1,855.98
Square D
100
600
HGA36100BKUJ
HGA36100BKUJ
In Stock
From
$1,854.47
Square D
100
600
HGA36100BKUJYP
HGA36100BKUJYP
In Stock
From
$1,855.98
Square D
100
600
HGA36100BKUK
HGA36100BKUK
In Stock
From
$1,855.98
Square D
100
600
HGA36100BKUKYP
HGA36100BKUKYP
In Stock
From
$1,854.47
Square D
100
600
HGA36100BKUN
HGA36100BKUN
In Stock
From
$1,855.98
Square D
100
600
HGA36100BKUNYP
HGA36100BKUNYP
In Stock
From
$1,854.47
Square D
100
600
HGA36100BKUO
HGA36100BKUO
In Stock
From
$1,854.47
Square D
100
600
HGA36100BKUOYP
HGA36100BKUOYP
In Stock
From
$1,854.47
Square D
100
600
HGA36100BKUP
HGA36100BKUP
In Stock
From
$1,854.47
Square D
100
600
HGA36100BKUPYP
HGA36100BKUPYP
In Stock
From
$1,854.47
Square D
100
600
HGA36100BKUR
HGA36100BKUR
In Stock
From
$1,854.47
Square D
100
600
HGA36100BKURYP
HGA36100BKURYP
In Stock
From
$1,855.98
Square D
100
600
HGA36100BKUS
HGA36100BKUS
In Stock
From
$1,854.47
Square D
100
600
HGA36100BKUSYP
HGA36100BKUSYP
In Stock
From
$1,855.98
Square D
100
600
HGA36100BKYP
HGA36100BKYP
In Stock
From
$1,854.47
Square D
100
600
HGA36100SDYP
HGA36100SDYP
In Stock
From
$1,854.47
Square D
100
600
HGA36100SHYP
HGA36100SHYP
In Stock
From
$1,854.47
Square D
100
600
HGA36100SJYP
HGA36100SJYP
In Stock
From
$1,854.47
Square D
100
600
HGA36100SKYP
HGA36100SKYP
In Stock
From
$1,854.47
Square D
100
600
HGA36100SLYP
HGA36100SLYP
In Stock
From
$1,855.98
Square D
100
600
HGA36100SNYP
HGA36100SNYP
In Stock
From
$1,854.47
Square D
100
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.