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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
HDA36150AFSH
HDA36150AFSH
In Stock
From
$2,713.52
Square D
150
600
HDA36150AFSHYP
HDA36150AFSHYP
In Stock
From
$2,713.52
Square D
150
600
HDA36150AFSJ
HDA36150AFSJ
In Stock
From
$2,713.52
Square D
150
600
HDA36150AFSJYP
HDA36150AFSJYP
In Stock
From
$2,713.52
Square D
150
600
HDA36150AFSK
HDA36150AFSK
In Stock
From
$2,713.52
Square D
150
600
HDA36150AFSKYP
HDA36150AFSKYP
In Stock
From
$2,713.52
Square D
150
600
HDA36150AFSL
HDA36150AFSL
In Stock
From
$2,713.52
Square D
150
600
HDA36150AFSLYP
HDA36150AFSLYP
In Stock
From
$2,713.52
Square D
150
600
HDA36150AFSN
HDA36150AFSN
In Stock
From
$2,713.52
Square D
150
600
HDA36150AFSNYP
HDA36150AFSNYP
In Stock
From
$2,713.52
Square D
150
600
HDA36150AFSP
HDA36150AFSP
In Stock
From
$2,713.52
Square D
150
600
HDA36150AFSPYP
HDA36150AFSPYP
In Stock
From
$2,713.52
Square D
150
600
HDA36150AFSR
HDA36150AFSR
In Stock
From
$2,713.52
Square D
150
600
HDA36150AFSRYP
HDA36150AFSRYP
In Stock
From
$2,713.52
Square D
150
600
HDA36150AFSV
HDA36150AFSV
In Stock
From
$2,713.52
Square D
150
600
HDA36150AFSVYP
HDA36150AFSVYP
In Stock
From
$2,713.52
Square D
150
600
HDA36150AFUA
HDA36150AFUA
In Stock
From
$2,713.52
Square D
150
600
HDA36150AFUAYP
HDA36150AFUAYP
In Stock
From
$2,713.52
Square D
150
600
HDA36150AFUD
HDA36150AFUD
In Stock
From
$2,713.52
Square D
150
600
HDA36150AFUDYP
HDA36150AFUDYP
In Stock
From
$2,713.52
Square D
150
600
HDA36150AFUH
HDA36150AFUH
In Stock
From
$2,713.52
Square D
150
600
HDA36150AFUHYP
HDA36150AFUHYP
In Stock
From
$2,713.52
Square D
150
600
HDA36150AFUJ
HDA36150AFUJ
In Stock
From
$2,713.52
Square D
150
600
HDA36150AFUJYP
HDA36150AFUJYP
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.