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
HDA36050ABSN
HDA36050ABSN
In Stock
From
$1,201.01
Square D
50
600
HDA36050ABSNYP
HDA36050ABSNYP
In Stock
From
$1,201.01
Square D
50
600
HDA36050ABSP
HDA36050ABSP
In Stock
From
$1,201.01
Square D
50
600
HDA36050ABSPYP
HDA36050ABSPYP
In Stock
From
$1,201.01
Square D
50
600
HDA36050ABSR
HDA36050ABSR
In Stock
From
$1,201.01
Square D
50
600
HDA36050ABSRYP
HDA36050ABSRYP
In Stock
From
$1,201.01
Square D
50
600
HDA36050ABSV
HDA36050ABSV
In Stock
From
$1,201.01
Square D
50
600
HDA36050ABSVYP
HDA36050ABSVYP
In Stock
From
$1,201.01
Square D
50
600
HDA36050ABUA
HDA36050ABUA
In Stock
From
$1,201.01
Square D
50
600
HDA36050ABUAYP
HDA36050ABUAYP
In Stock
From
$1,201.01
Square D
50
600
HDA36050ABUD
HDA36050ABUD
In Stock
From
$1,201.01
Square D
50
600
HDA36050ABUDYP
HDA36050ABUDYP
In Stock
From
$1,201.01
Square D
50
600
HDA36050ABUH
HDA36050ABUH
In Stock
From
$1,201.01
Square D
50
600
HDA36050ABUHYP
HDA36050ABUHYP
In Stock
From
$1,201.01
Square D
50
600
HDA36050ABUJ
HDA36050ABUJ
In Stock
From
$1,201.01
Square D
50
600
HDA36050ABUJYP
HDA36050ABUJYP
In Stock
From
$1,201.01
Square D
50
600
HDA36050ABUK
HDA36050ABUK
In Stock
From
$1,201.01
Square D
50
600
HDA36050ABUKYP
HDA36050ABUKYP
In Stock
From
$1,201.01
Square D
50
600
HDA36050ABUN
HDA36050ABUN
In Stock
From
$1,201.01
Square D
50
600
HDA36050ABUNYP
HDA36050ABUNYP
In Stock
From
$1,201.01
Square D
50
600
HDA36050ABUO
HDA36050ABUO
In Stock
From
$1,201.01
Square D
50
600
HDA36050ABUOYP
HDA36050ABUOYP
In Stock
From
$1,201.01
Square D
50
600
HDA36050ABUP
HDA36050ABUP
In Stock
From
$1,201.01
Square D
50
600
HDA36050ABUPYP
HDA36050ABUPYP
In Stock
From
$1,201.01
Square D
50
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.