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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
HDL36150AASL
HDL36150AASL
In Stock
From
$2,943.44
Square D
150
600
HDL36150AASLYP
HDL36150AASLYP
In Stock
From
$2,943.44
Square D
150
600
HDL36150AASN
HDL36150AASN
In Stock
From
$2,943.44
Square D
150
600
HDL36150AASNYP
HDL36150AASNYP
In Stock
From
$2,943.44
Square D
150
600
HDL36150AASP
HDL36150AASP
In Stock
From
$2,943.44
Square D
150
600
HDL36150AASPYP
HDL36150AASPYP
In Stock
From
$2,943.44
Square D
150
600
HDL36150AASR
HDL36150AASR
In Stock
From
$2,943.44
Square D
150
600
HDL36150AASRYP
HDL36150AASRYP
In Stock
From
$2,943.44
Square D
150
600
HDL36150AASV
HDL36150AASV
In Stock
From
$2,943.44
Square D
150
600
HDL36150AASVYP
HDL36150AASVYP
In Stock
From
$2,943.44
Square D
150
600
HDL36150AAUA
HDL36150AAUA
In Stock
From
$2,943.44
Square D
150
600
HDL36150AAUAYP
HDL36150AAUAYP
In Stock
From
$2,943.44
Square D
150
600
HDL36150AAUD
HDL36150AAUD
In Stock
From
$2,943.44
Square D
150
600
HDL36150AAUDYP
HDL36150AAUDYP
In Stock
From
$2,943.44
Square D
150
600
HDL36150AAUH
HDL36150AAUH
In Stock
From
$2,943.44
Square D
150
600
HDL36150AAUHYP
HDL36150AAUHYP
In Stock
From
$2,943.44
Square D
150
600
HDL36150AAUJ
HDL36150AAUJ
In Stock
From
$2,943.44
Square D
150
600
HDL36150AAUJYP
HDL36150AAUJYP
In Stock
From
$2,943.44
Square D
150
600
HDL36150AAUK
HDL36150AAUK
In Stock
From
$2,943.44
Square D
150
600
HDL36150AAUKYP
HDL36150AAUKYP
In Stock
From
$2,943.44
Square D
150
600
HDL36150AAUN
HDL36150AAUN
In Stock
From
$2,943.44
Square D
150
600
HDL36150AAUNYP
HDL36150AAUNYP
In Stock
From
$2,943.44
Square D
150
600
HDL36150AAUO
HDL36150AAUO
In Stock
From
$2,943.44
Square D
150
600
HDL36150AAUOYP
HDL36150AAUOYP
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.