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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.
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Part Number
PRICE
Manufacturer
Amperage
Voltage
HDA36150AFUK
HDA36150AFUK
In Stock
From
$2,713.52
Square D
150
600
HDA36150AFUKYP
HDA36150AFUKYP
In Stock
From
$2,713.52
Square D
150
600
HDA36150AFUN
HDA36150AFUN
In Stock
From
$2,713.52
Square D
150
600
HDA36150AFUNYP
HDA36150AFUNYP
In Stock
From
$2,713.52
Square D
150
600
HDA36150AFUO
HDA36150AFUO
In Stock
From
$2,713.52
Square D
150
600
HDA36150AFUOYP
HDA36150AFUOYP
In Stock
From
$2,713.52
Square D
150
600
HDA36150AFUP
HDA36150AFUP
In Stock
From
$2,713.52
Square D
150
600
HDA36150AFUPYP
HDA36150AFUPYP
In Stock
From
$2,713.52
Square D
150
600
HDA36150AFUR
HDA36150AFUR
In Stock
From
$2,713.52
Square D
150
600
HDA36150AFURYP
HDA36150AFURYP
In Stock
From
$2,713.52
Square D
150
600
HDA36150AFUS
HDA36150AFUS
In Stock
From
$2,713.52
Square D
150
600
HDA36150AFUSYP
HDA36150AFUSYP
In Stock
From
$2,713.52
Square D
150
600
HDA36150AFYP
HDA36150AFYP
In Stock
From
$2,713.52
Square D
150
600
HDA36150BC
HDA36150BC
In Stock
From
$2,713.52
Square D
150
600
HDA36150BCSD
HDA36150BCSD
In Stock
From
$2,713.52
Square D
150
600
HDA36150BCSDYP
HDA36150BCSDYP
In Stock
From
$2,713.52
Square D
150
600
HDA36150BCSH
HDA36150BCSH
In Stock
From
$2,713.52
Square D
150
600
HDA36150BCSHYP
HDA36150BCSHYP
In Stock
From
$2,713.52
Square D
150
600
HDA36150BCSJ
HDA36150BCSJ
In Stock
From
$2,713.52
Square D
150
600
HDA36150BCSJYP
HDA36150BCSJYP
In Stock
From
$2,713.52
Square D
150
600
HDA36150BCSK
HDA36150BCSK
In Stock
From
$2,713.52
Square D
150
600
HDA36150BCSKYP
HDA36150BCSKYP
In Stock
From
$2,713.52
Square D
150
600
HDA36150BCSL
HDA36150BCSL
In Stock
From
$2,713.52
Square D
150
600
HDA36150BCSLYP
HDA36150BCSLYP
In Stock
From
$2,713.52
Square D
150
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.