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
HDA36030BEUP
HDA36030BEUP
In Stock
From
$1,179.92
Square D
30
600
HDA36030BEUPYP
HDA36030BEUPYP
In Stock
From
$1,179.92
Square D
30
600
HDA36030BEUR
HDA36030BEUR
In Stock
From
$1,179.92
Square D
30
600
HDA36030BEURYP
HDA36030BEURYP
In Stock
From
$1,179.92
Square D
30
600
HDA36030BEUS
HDA36030BEUS
In Stock
From
$1,179.92
Square D
30
600
HDA36030BEUSYP
HDA36030BEUSYP
In Stock
From
$1,179.92
Square D
30
600
HDA36030BEYP
HDA36030BEYP
In Stock
From
$1,179.92
Square D
30
600
HDA36030BH
HDA36030BH
In Stock
From
$1,179.92
Square D
30
600
HDA36030BHSD
HDA36030BHSD
In Stock
From
$1,179.92
Square D
30
600
HDA36030BHSDYP
HDA36030BHSDYP
In Stock
From
$1,179.92
Square D
30
600
HDA36030BHSH
HDA36030BHSH
In Stock
From
$1,179.92
Square D
30
600
HDA36030BHSHYP
HDA36030BHSHYP
In Stock
From
$1,179.92
Square D
30
600
HDA36030BHSJ
HDA36030BHSJ
In Stock
From
$1,179.92
Square D
30
600
HDA36030BHSJYP
HDA36030BHSJYP
In Stock
From
$1,179.92
Square D
30
600
HDA36030BHSK
HDA36030BHSK
In Stock
From
$1,179.92
Square D
30
600
HDA36030BHSKYP
HDA36030BHSKYP
In Stock
From
$1,179.92
Square D
30
600
HDA36030BHSL
HDA36030BHSL
In Stock
From
$1,179.92
Square D
30
600
HDA36030BHSLYP
HDA36030BHSLYP
In Stock
From
$1,179.92
Square D
30
600
HDA36030BHSN
HDA36030BHSN
In Stock
From
$1,179.92
Square D
30
600
HDA36030BHSNYP
HDA36030BHSNYP
In Stock
From
$1,179.92
Square D
30
600
HDA36030BHSP
HDA36030BHSP
In Stock
From
$1,179.92
Square D
30
600
HDA36030BHSPYP
HDA36030BHSPYP
In Stock
From
$1,179.92
Square D
30
600
HDA36030BHSR
HDA36030BHSR
In Stock
From
$1,179.92
Square D
30
600
HDA36030BHSRYP
HDA36030BHSRYP
In Stock
From
$1,179.92
Square D
30
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.