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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
HDA36090BKSVYP
HDA36090BKSVYP
In Stock
From
$962.26
Square D
90
600
HDA36090BKUA
HDA36090BKUA
In Stock
From
$962.26
Square D
90
600
HDA36090BKUAYP
HDA36090BKUAYP
In Stock
From
$962.26
Square D
90
600
HDA36090BKUD
HDA36090BKUD
In Stock
From
$962.26
Square D
90
600
HDA36090BKUDYP
HDA36090BKUDYP
In Stock
From
$962.26
Square D
90
600
HDA36090BKUH
HDA36090BKUH
In Stock
From
$962.26
Square D
90
600
HDA36090BKUHYP
HDA36090BKUHYP
In Stock
From
$962.26
Square D
90
600
HDA36090BKUJ
HDA36090BKUJ
In Stock
From
$962.26
Square D
90
600
HDA36090BKUJYP
HDA36090BKUJYP
In Stock
From
$962.26
Square D
90
600
HDA36090BKUK
HDA36090BKUK
In Stock
From
$962.26
Square D
90
600
HDA36090BKUKYP
HDA36090BKUKYP
In Stock
From
$962.26
Square D
90
600
HDA36090BKUN
HDA36090BKUN
In Stock
From
$962.26
Square D
90
600
HDA36090BKUNYP
HDA36090BKUNYP
In Stock
From
$962.26
Square D
90
600
HDA36090BKUO
HDA36090BKUO
In Stock
From
$962.26
Square D
90
600
HDA36090BKUOYP
HDA36090BKUOYP
In Stock
From
$962.26
Square D
90
600
HDA36090BKUP
HDA36090BKUP
In Stock
From
$962.26
Square D
90
600
HDA36090BKUPYP
HDA36090BKUPYP
In Stock
From
$962.26
Square D
90
600
HDA36090BKUR
HDA36090BKUR
In Stock
From
$962.26
Square D
90
600
HDA36090BKURYP
HDA36090BKURYP
In Stock
From
$962.26
Square D
90
600
HDA36090BKUS
HDA36090BKUS
In Stock
From
$962.26
Square D
90
600
HDA36090BKUSYP
HDA36090BKUSYP
In Stock
From
$962.26
Square D
90
600
HDA36090BKYP
HDA36090BKYP
In Stock
From
$962.26
Square D
90
600
HDA36090SDYP
HDA36090SDYP
In Stock
From
$962.26
Square D
90
600
HDA36090SHYP
HDA36090SHYP
In Stock
From
$962.26
Square D
90
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.