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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
HDA36150BHUK
HDA36150BHUK
In Stock
From
$2,713.52
Square D
150
600
HDA36150BHUKYP
HDA36150BHUKYP
In Stock
From
$2,713.52
Square D
150
600
HDA36150BHUN
HDA36150BHUN
In Stock
From
$2,713.52
Square D
150
600
HDA36150BHUNYP
HDA36150BHUNYP
In Stock
From
$2,713.52
Square D
150
600
HDA36150BHUO
HDA36150BHUO
In Stock
From
$2,713.52
Square D
150
600
HDA36150BHUOYP
HDA36150BHUOYP
In Stock
From
$2,713.52
Square D
150
600
HDA36150BHUP
HDA36150BHUP
In Stock
From
$2,713.52
Square D
150
600
HDA36150BHUPYP
HDA36150BHUPYP
In Stock
From
$2,713.52
Square D
150
600
HDA36150BHUR
HDA36150BHUR
In Stock
From
$2,713.52
Square D
150
600
HDA36150BHURYP
HDA36150BHURYP
In Stock
From
$2,713.52
Square D
150
600
HDA36150BHUS
HDA36150BHUS
In Stock
From
$2,713.52
Square D
150
600
HDA36150BHUSYP
HDA36150BHUSYP
In Stock
From
$2,713.52
Square D
150
600
HDA36150BHYP
HDA36150BHYP
In Stock
From
$2,713.52
Square D
150
600
HDA36150BK
HDA36150BK
In Stock
From
$2,713.52
Square D
150
600
HDA36150BKSD
HDA36150BKSD
In Stock
From
$2,713.52
Square D
150
600
HDA36150BKSDYP
HDA36150BKSDYP
In Stock
From
$2,713.52
Square D
150
600
HDA36150BKSH
HDA36150BKSH
In Stock
From
$2,713.52
Square D
150
600
HDA36150BKSHYP
HDA36150BKSHYP
In Stock
From
$2,713.52
Square D
150
600
HDA36150BKSJ
HDA36150BKSJ
In Stock
From
$2,713.52
Square D
150
600
HDA36150BKSJYP
HDA36150BKSJYP
In Stock
From
$2,713.52
Square D
150
600
HDA36150BKSK
HDA36150BKSK
In Stock
From
$2,713.52
Square D
150
600
HDA36150BKSKYP
HDA36150BKSKYP
In Stock
From
$2,713.52
Square D
150
600
HDA36150BKSL
HDA36150BKSL
In Stock
From
$2,713.52
Square D
150
600
HDA36150BKSLYP
HDA36150BKSLYP
In Stock
From
$2,713.52
Square D
150
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.