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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
HDA36040BCSVYP
HDA36040BCSVYP
In Stock
From
$911.98
Square D
40
600
HDA36040BCUA
HDA36040BCUA
In Stock
From
$911.98
Square D
40
600
HDA36040BCUAYP
HDA36040BCUAYP
In Stock
From
$911.98
Square D
40
600
HDA36040BCUD
HDA36040BCUD
In Stock
From
$911.98
Square D
40
600
HDA36040BCUDYP
HDA36040BCUDYP
In Stock
From
$911.98
Square D
40
600
HDA36040BCUH
HDA36040BCUH
In Stock
From
$911.98
Square D
40
600
HDA36040BCUHYP
HDA36040BCUHYP
In Stock
From
$911.98
Square D
40
600
HDA36040BCUJ
HDA36040BCUJ
In Stock
From
$911.98
Square D
40
600
HDA36040BCUJYP
HDA36040BCUJYP
In Stock
From
$911.98
Square D
40
600
HDA36040BCUK
HDA36040BCUK
In Stock
From
$911.98
Square D
40
600
HDA36040BCUKYP
HDA36040BCUKYP
In Stock
From
$911.98
Square D
40
600
HDA36040BCUN
HDA36040BCUN
In Stock
From
$911.98
Square D
40
600
HDA36040BCUNYP
HDA36040BCUNYP
In Stock
From
$911.98
Square D
40
600
HDA36040BCUO
HDA36040BCUO
In Stock
From
$911.98
Square D
40
600
HDA36040BCUOYP
HDA36040BCUOYP
In Stock
From
$911.98
Square D
40
600
HDA36040BCUP
HDA36040BCUP
In Stock
From
$911.98
Square D
40
600
HDA36040BCUPYP
HDA36040BCUPYP
In Stock
From
$911.98
Square D
40
600
HDA36040BCUR
HDA36040BCUR
In Stock
From
$911.98
Square D
40
600
HDA36040BCURYP
HDA36040BCURYP
In Stock
From
$911.98
Square D
40
600
HDA36040BCUS
HDA36040BCUS
In Stock
From
$911.98
Square D
40
600
HDA36040BCUSYP
HDA36040BCUSYP
In Stock
From
$911.98
Square D
40
600
HDA36040BCYP
HDA36040BCYP
In Stock
From
$911.98
Square D
40
600
HDA36040BE
HDA36040BE
In Stock
From
$911.98
Square D
40
600
HDA36040BESD
HDA36040BESD
In Stock
From
$911.98
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.