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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
HGA36030SV
HGA36030SV
In Stock
From
$841.30
Square D
30
600
HGA36030SVYP
HGA36030SVYP
In Stock
From
$841.30
Square D
30
600
HGA36030UA
HGA36030UA
In Stock
From
$841.30
Square D
30
600
HGA36030UAYP
HGA36030UAYP
In Stock
From
$841.30
Square D
30
600
HGA36030UD
HGA36030UD
In Stock
From
$841.30
Square D
30
600
HGA36030UDYP
HGA36030UDYP
In Stock
From
$841.30
Square D
30
600
HGA36030UH
HGA36030UH
In Stock
From
$841.30
Square D
30
600
HGA36030UHYP
HGA36030UHYP
In Stock
From
$841.30
Square D
30
600
HGA36030UJ
HGA36030UJ
In Stock
From
$841.30
Square D
30
600
HGA36030UJYP
HGA36030UJYP
In Stock
From
$841.30
Square D
30
600
HGA36030UK
HGA36030UK
In Stock
From
$841.30
Square D
30
600
HGA36030UKYP
HGA36030UKYP
In Stock
From
$841.30
Square D
30
600
HGA36030UN
HGA36030UN
In Stock
From
$841.30
Square D
30
600
HGA36030UNYP
HGA36030UNYP
In Stock
From
$841.30
Square D
30
600
HGA36030UO
HGA36030UO
In Stock
From
$841.30
Square D
30
600
HGA36030UOYP
HGA36030UOYP
In Stock
From
$841.30
Square D
30
600
HGA36030UP
HGA36030UP
In Stock
From
$841.30
Square D
30
600
HGA36030UPYP
HGA36030UPYP
In Stock
From
$841.30
Square D
30
600
HGA36030UR
HGA36030UR
In Stock
From
$841.30
Square D
30
600
HGA36030URYP
HGA36030URYP
In Stock
From
$841.30
Square D
30
600
HGA36030US
HGA36030US
In Stock
From
$841.30
Square D
30
600
HGA36030USYP
HGA36030USYP
In Stock
From
$841.30
Square D
30
600
HGA36035AA
HGA36035AA
In Stock
From
$1,193.82
Square D
35
600
HGA36035AABC
HGA36035AABC
In Stock
From
$1,193.82
Square D
35
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.