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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
HDA36090BHUPYP
HDA36090BHUPYP
In Stock
From
$962.26
Square D
90
600
HDA36090BHUR
HDA36090BHUR
In Stock
From
$1,080.28
Square D
90
600
HDA36090BHURYP
HDA36090BHURYP
In Stock
From
$962.26
Square D
90
600
HDA36090BHUS
HDA36090BHUS
In Stock
From
$1,080.28
Square D
90
600
HDA36090BHUSYP
HDA36090BHUSYP
In Stock
From
$1,080.28
Square D
90
600
HDA36090BHYP
HDA36090BHYP
In Stock
From
$962.26
Square D
90
600
HDA36090BK
HDA36090BK
In Stock
From
$962.26
Square D
90
600
HDA36090BKSD
HDA36090BKSD
In Stock
From
$962.26
Square D
90
600
HDA36090BKSDYP
HDA36090BKSDYP
In Stock
From
$962.26
Square D
90
600
HDA36090BKSH
HDA36090BKSH
In Stock
From
$962.26
Square D
90
600
HDA36090BKSHYP
HDA36090BKSHYP
In Stock
From
$962.26
Square D
90
600
HDA36090BKSJ
HDA36090BKSJ
In Stock
From
$1,080.28
Square D
90
600
HDA36090BKSJYP
HDA36090BKSJYP
In Stock
From
$962.26
Square D
90
600
HDA36090BKSK
HDA36090BKSK
In Stock
From
$962.26
Square D
90
600
HDA36090BKSKYP
HDA36090BKSKYP
In Stock
From
$1,080.28
Square D
90
600
HDA36090BKSL
HDA36090BKSL
In Stock
From
$1,080.28
Square D
90
600
HDA36090BKSLYP
HDA36090BKSLYP
In Stock
From
$962.26
Square D
90
600
HDA36090BKSN
HDA36090BKSN
In Stock
From
$962.26
Square D
90
600
HDA36090BKSNYP
HDA36090BKSNYP
In Stock
From
$962.26
Square D
90
600
HDA36090BKSP
HDA36090BKSP
In Stock
From
$962.26
Square D
90
600
HDA36090BKSPYP
HDA36090BKSPYP
In Stock
From
$1,080.28
Square D
90
600
HDA36090BKSR
HDA36090BKSR
In Stock
From
$962.26
Square D
90
600
HDA36090BKSRYP
HDA36090BKSRYP
In Stock
From
$962.26
Square D
90
600
HDA36090BKSV
HDA36090BKSV
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.