1. Home / 
  2. All Categories / 
  3. Circuit Breaker / 
  4. Molded Case Circuit Breaker

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
HDL36090AAUH
HDL36090AAUH
In Stock
From
$1,838.92
Square D
90
600
HDL36090AAUHYP
HDL36090AAUHYP
In Stock
From
$1,838.92
Square D
90
600
HDL36090AAUJ
HDL36090AAUJ
In Stock
From
$1,838.92
Square D
90
600
HDL36090AAUJYP
HDL36090AAUJYP
In Stock
From
$1,838.92
Square D
90
600
HDL36090AAUK
HDL36090AAUK
In Stock
From
$1,838.92
Square D
90
600
HDL36090AAUKYP
HDL36090AAUKYP
In Stock
From
$1,838.92
Square D
90
600
HDL36090AAUN
HDL36090AAUN
In Stock
From
$1,838.92
Square D
90
600
HDL36090AAUNYP
HDL36090AAUNYP
In Stock
From
$1,838.92
Square D
90
600
HDL36090AAUO
HDL36090AAUO
In Stock
From
$1,838.92
Square D
90
600
HDL36090AAUOYP
HDL36090AAUOYP
In Stock
From
$1,838.92
Square D
90
600
HDL36090AAUP
HDL36090AAUP
In Stock
From
$1,838.92
Square D
90
600
HDL36090AAUPYP
HDL36090AAUPYP
In Stock
From
$1,838.92
Square D
90
600
HDL36090AAUR
HDL36090AAUR
In Stock
From
$1,838.92
Square D
90
600
HDL36090AAURYP
HDL36090AAURYP
In Stock
From
$1,838.92
Square D
90
600
HDL36090AAUS
HDL36090AAUS
In Stock
From
$1,838.92
Square D
90
600
HDL36090AAUSYP
HDL36090AAUSYP
In Stock
From
$1,838.92
Square D
90
600
HDL36090AAYP
HDL36090AAYP
In Stock
From
$1,838.92
Square D
90
600
HDL36090AB
HDL36090AB
In Stock
From
$1,838.92
Square D
90
600
HDL36090ABBC
HDL36090ABBC
In Stock
From
$1,838.92
Square D
90
600
HDL36090ABBCSD
HDL36090ABBCSD
In Stock
From
$1,838.92
Square D
90
600
HDL36090ABBCSDYP
HDL36090ABBCSDYP
In Stock
From
$1,838.92
Square D
90
600
HDL36090ABBCSH
HDL36090ABBCSH
In Stock
From
$1,838.92
Square D
90
600
HDL36090ABBCSHYP
HDL36090ABBCSHYP
In Stock
From
$1,838.92
Square D
90
600
HDL36090ABBCSJ
HDL36090ABBCSJ
In Stock
From
$1,838.92
Square D
90
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.