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
HDA36070UP
HDA36070UP
In Stock
From
$484.70
Square D
70
600
HDA36070UR
HDA36070UR
In Stock
From
$426.41
Square D
70
600
HDA36070US
HDA36070US
In Stock
From
$428.49
Square D
70
600
HDA36080SD
HDA36080SD
In Stock
From
$423.14
Square D
80
600
HDA36080SH
HDA36080SH
In Stock
From
$482.67
Square D
80
600
HDA36080SJ
HDA36080SJ
In Stock
From
$426.10
Square D
80
600
HDA36080SK
HDA36080SK
In Stock
From
$427.19
Square D
80
600
HDA36080SL
HDA36080SL
In Stock
From
$423.69
Square D
80
600
HDA36080SN
HDA36080SN
In Stock
From
$430.50
Square D
80
600
HDA36080SP
HDA36080SP
In Stock
From
$430.48
Square D
80
600
HDA36080SR
HDA36080SR
In Stock
From
$484.76
Square D
80
600
HDA36080SV
HDA36080SV
In Stock
From
$424.55
Square D
80
600
HDA36080UA
HDA36080UA
In Stock
From
$428.91
Square D
80
600
HDA36080UD
HDA36080UD
In Stock
From
$426.10
Square D
80
600
HDA36080UH
HDA36080UH
In Stock
From
$423.04
Square D
80
600
HDA36080UJ
HDA36080UJ
In Stock
From
$423.38
Square D
80
600
HDA36080UK
HDA36080UK
In Stock
From
$483.19
Square D
80
600
HDA36080UN
HDA36080UN
In Stock
From
$429.78
Square D
80
600
HDA36080UO
HDA36080UO
In Stock
From
$429.04
Square D
80
600
HDA36080UP
HDA36080UP
In Stock
From
$484.69
Square D
80
600
HDA36080UR
HDA36080UR
In Stock
From
$427.14
Square D
80
600
HDA36080US
HDA36080US
In Stock
From
$479.31
Square D
80
600
HDA36090SD
HDA36090SD
In Stock
From
$1,080.28
Square D
90
600
HDA36090SH
HDA36090SH
In Stock
From
$1,080.28
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.