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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
HDA36040BHSLYP
HDA36040BHSLYP
In Stock
From
$911.98
Square D
40
600
HDA36040BHSN
HDA36040BHSN
In Stock
From
$911.98
Square D
40
600
HDA36040BHSNYP
HDA36040BHSNYP
In Stock
From
$911.98
Square D
40
600
HDA36040BHSP
HDA36040BHSP
In Stock
From
$911.98
Square D
40
600
HDA36040BHSPYP
HDA36040BHSPYP
In Stock
From
$911.98
Square D
40
600
HDA36040BHSR
HDA36040BHSR
In Stock
From
$911.98
Square D
40
600
HDA36040BHSRYP
HDA36040BHSRYP
In Stock
From
$911.98
Square D
40
600
HDA36040BHSV
HDA36040BHSV
In Stock
From
$911.98
Square D
40
600
HDA36040BHSVYP
HDA36040BHSVYP
In Stock
From
$911.98
Square D
40
600
HDA36040BHUA
HDA36040BHUA
In Stock
From
$911.98
Square D
40
600
HDA36040BHUAYP
HDA36040BHUAYP
In Stock
From
$911.98
Square D
40
600
HDA36040BHUD
HDA36040BHUD
In Stock
From
$911.98
Square D
40
600
HDA36040BHUDYP
HDA36040BHUDYP
In Stock
From
$911.98
Square D
40
600
HDA36040BHUH
HDA36040BHUH
In Stock
From
$911.98
Square D
40
600
HDA36040BHUHYP
HDA36040BHUHYP
In Stock
From
$911.98
Square D
40
600
HDA36040BHUJ
HDA36040BHUJ
In Stock
From
$911.98
Square D
40
600
HDA36040BHUJYP
HDA36040BHUJYP
In Stock
From
$911.98
Square D
40
600
HDA36040BHUK
HDA36040BHUK
In Stock
From
$911.98
Square D
40
600
HDA36040BHUKYP
HDA36040BHUKYP
In Stock
From
$911.98
Square D
40
600
HDA36040BHUN
HDA36040BHUN
In Stock
From
$911.98
Square D
40
600
HDA36040BHUNYP
HDA36040BHUNYP
In Stock
From
$911.98
Square D
40
600
HDA36040BHUO
HDA36040BHUO
In Stock
From
$911.98
Square D
40
600
HDA36040BHUOYP
HDA36040BHUOYP
In Stock
From
$911.98
Square D
40
600
HDA36040BHUP
HDA36040BHUP
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.