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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
HGA36030BKUOYP
HGA36030BKUOYP
In Stock
From
$841.30
Square D
30
600
HGA36030BKUP
HGA36030BKUP
In Stock
From
$841.30
Square D
30
600
HGA36030BKUPYP
HGA36030BKUPYP
In Stock
From
$841.30
Square D
30
600
HGA36030BKUR
HGA36030BKUR
In Stock
From
$841.30
Square D
30
600
HGA36030BKURYP
HGA36030BKURYP
In Stock
From
$841.30
Square D
30
600
HGA36030BKUS
HGA36030BKUS
In Stock
From
$841.30
Square D
30
600
HGA36030BKUSYP
HGA36030BKUSYP
In Stock
From
$841.30
Square D
30
600
HGA36030BKYP
HGA36030BKYP
In Stock
From
$841.30
Square D
30
600
HGA36030SD
HGA36030SD
In Stock
From
$841.30
Square D
30
600
HGA36030SDYP
HGA36030SDYP
In Stock
From
$841.30
Square D
30
600
HGA36030SH
HGA36030SH
In Stock
From
$841.30
Square D
30
600
HGA36030SHYP
HGA36030SHYP
In Stock
From
$841.30
Square D
30
600
HGA36030SJ
HGA36030SJ
In Stock
From
$841.30
Square D
30
600
HGA36030SJYP
HGA36030SJYP
In Stock
From
$841.30
Square D
30
600
HGA36030SK
HGA36030SK
In Stock
From
$841.30
Square D
30
600
HGA36030SKYP
HGA36030SKYP
In Stock
From
$841.30
Square D
30
600
HGA36030SL
HGA36030SL
In Stock
From
$841.30
Square D
30
600
HGA36030SLYP
HGA36030SLYP
In Stock
From
$841.30
Square D
30
600
HGA36030SN
HGA36030SN
In Stock
From
$841.30
Square D
30
600
HGA36030SNYP
HGA36030SNYP
In Stock
From
$841.30
Square D
30
600
HGA36030SP
HGA36030SP
In Stock
From
$841.30
Square D
30
600
HGA36030SPYP
HGA36030SPYP
In Stock
From
$841.30
Square D
30
600
HGA36030SR
HGA36030SR
In Stock
From
$841.30
Square D
30
600
HGA36030SRYP
HGA36030SRYP
In Stock
From
$841.30
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.