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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
HDA36070BKSK
HDA36070BKSK
In Stock
From
$1,192.48
Square D
70
600
HDA36070BKSKYP
HDA36070BKSKYP
In Stock
From
$1,192.48
Square D
70
600
HDA36070BKSL
HDA36070BKSL
In Stock
From
$1,192.48
Square D
70
600
HDA36070BKSLYP
HDA36070BKSLYP
In Stock
From
$1,192.48
Square D
70
600
HDA36070BKSN
HDA36070BKSN
In Stock
From
$1,192.48
Square D
70
600
HDA36070BKSNYP
HDA36070BKSNYP
In Stock
From
$1,192.48
Square D
70
600
HDA36070BKSP
HDA36070BKSP
In Stock
From
$1,192.48
Square D
70
600
HDA36070BKSPYP
HDA36070BKSPYP
In Stock
From
$1,192.48
Square D
70
600
HDA36070BKSR
HDA36070BKSR
In Stock
From
$1,192.48
Square D
70
600
HDA36070BKSRYP
HDA36070BKSRYP
In Stock
From
$1,192.48
Square D
70
600
HDA36070BKSV
HDA36070BKSV
In Stock
From
$1,192.48
Square D
70
600
HDA36070BKSVYP
HDA36070BKSVYP
In Stock
From
$1,192.48
Square D
70
600
HDA36070BKUA
HDA36070BKUA
In Stock
From
$1,192.48
Square D
70
600
HDA36070BKUAYP
HDA36070BKUAYP
In Stock
From
$1,192.48
Square D
70
600
HDA36070BKUD
HDA36070BKUD
In Stock
From
$1,192.48
Square D
70
600
HDA36070BKUDYP
HDA36070BKUDYP
In Stock
From
$1,192.48
Square D
70
600
HDA36070BKUH
HDA36070BKUH
In Stock
From
$1,192.48
Square D
70
600
HDA36070BKUHYP
HDA36070BKUHYP
In Stock
From
$1,192.48
Square D
70
600
HDA36070BKUJ
HDA36070BKUJ
In Stock
From
$1,192.48
Square D
70
600
HDA36070BKUJYP
HDA36070BKUJYP
In Stock
From
$1,192.48
Square D
70
600
HDA36070BKUK
HDA36070BKUK
In Stock
From
$1,192.48
Square D
70
600
HDA36070BKUKYP
HDA36070BKUKYP
In Stock
From
$1,192.48
Square D
70
600
HDA36070BKUN
HDA36070BKUN
In Stock
From
$1,192.48
Square D
70
600
HDA36070BKUNYP
HDA36070BKUNYP
In Stock
From
$1,192.48
Square D
70
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.