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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
HDL36150BHUP
HDL36150BHUP
In Stock
From
$2,943.44
Square D
150
600
HDL36150BHUPYP
HDL36150BHUPYP
In Stock
From
$2,943.44
Square D
150
600
HDL36150BHUR
HDL36150BHUR
In Stock
From
$2,943.44
Square D
150
600
HDL36150BHURYP
HDL36150BHURYP
In Stock
From
$2,943.44
Square D
150
600
HDL36150BHUS
HDL36150BHUS
In Stock
From
$2,943.44
Square D
150
600
HDL36150BHUSYP
HDL36150BHUSYP
In Stock
From
$2,943.44
Square D
150
600
HDL36150BHYP
HDL36150BHYP
In Stock
From
$2,943.44
Square D
150
600
HDL36150BK
HDL36150BK
In Stock
From
$2,943.44
Square D
150
600
HDL36150BKSD
HDL36150BKSD
In Stock
From
$2,943.44
Square D
150
600
HDL36150BKSDYP
HDL36150BKSDYP
In Stock
From
$2,943.44
Square D
150
600
HDL36150BKSH
HDL36150BKSH
In Stock
From
$2,943.44
Square D
150
600
HDL36150BKSHYP
HDL36150BKSHYP
In Stock
From
$2,943.44
Square D
150
600
HDL36150BKSJ
HDL36150BKSJ
In Stock
From
$2,943.44
Square D
150
600
HDL36150BKSJYP
HDL36150BKSJYP
In Stock
From
$2,943.44
Square D
150
600
HDL36150BKSK
HDL36150BKSK
In Stock
From
$2,943.44
Square D
150
600
HDL36150BKSKYP
HDL36150BKSKYP
In Stock
From
$2,943.44
Square D
150
600
HDL36150BKSL
HDL36150BKSL
In Stock
From
$2,943.44
Square D
150
600
HDL36150BKSLYP
HDL36150BKSLYP
In Stock
From
$2,943.44
Square D
150
600
HDL36150BKSN
HDL36150BKSN
In Stock
From
$2,943.44
Square D
150
600
HDL36150BKSNYP
HDL36150BKSNYP
In Stock
From
$2,943.44
Square D
150
600
HDL36150BKSP
HDL36150BKSP
In Stock
From
$2,943.44
Square D
150
600
HDL36150BKSPYP
HDL36150BKSPYP
In Stock
From
$2,943.44
Square D
150
600
HDL36150BKSR
HDL36150BKSR
In Stock
From
$2,943.44
Square D
150
600
HDL36150BKSRYP
HDL36150BKSRYP
In Stock
From
$2,943.44
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.