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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
HDA36150U43XBCSDYP
HDA36150U43XBCSDYP
In Stock
From
$2,713.52
Square D
150
600
HDA36150U43XBCSH
HDA36150U43XBCSH
In Stock
From
$2,713.52
Square D
150
600
HDA36150U43XBCSHYP
HDA36150U43XBCSHYP
In Stock
From
$2,713.52
Square D
150
600
HDA36150U43XBCSJ
HDA36150U43XBCSJ
In Stock
From
$2,713.52
Square D
150
600
HDA36150U43XBCSJYP
HDA36150U43XBCSJYP
In Stock
From
$2,713.52
Square D
150
600
HDA36150U43XBCSK
HDA36150U43XBCSK
In Stock
From
$2,713.52
Square D
150
600
HDA36150U43XBCSKYP
HDA36150U43XBCSKYP
In Stock
From
$2,713.52
Square D
150
600
HDA36150U43XBCSL
HDA36150U43XBCSL
In Stock
From
$2,713.52
Square D
150
600
HDA36150U43XBCSLYP
HDA36150U43XBCSLYP
In Stock
From
$2,713.52
Square D
150
600
HDA36150U43XBCSN
HDA36150U43XBCSN
In Stock
From
$2,713.52
Square D
150
600
HDA36150U43XBCSNYP
HDA36150U43XBCSNYP
In Stock
From
$2,713.52
Square D
150
600
HDA36150U43XBCSP
HDA36150U43XBCSP
In Stock
From
$2,713.52
Square D
150
600
HDA36150U43XBCSPYP
HDA36150U43XBCSPYP
In Stock
From
$2,713.52
Square D
150
600
HDA36150U43XBCSR
HDA36150U43XBCSR
In Stock
From
$2,713.52
Square D
150
600
HDA36150U43XBCSRYP
HDA36150U43XBCSRYP
In Stock
From
$2,713.52
Square D
150
600
HDA36150U43XBCSV
HDA36150U43XBCSV
In Stock
From
$2,713.52
Square D
150
600
HDA36150U43XBCSVYP
HDA36150U43XBCSVYP
In Stock
From
$2,713.52
Square D
150
600
HDA36150U43XBCUA
HDA36150U43XBCUA
In Stock
From
$2,713.52
Square D
150
600
HDA36150U43XBCUAYP
HDA36150U43XBCUAYP
In Stock
From
$2,713.52
Square D
150
600
HDA36150U43XBCUD
HDA36150U43XBCUD
In Stock
From
$2,713.52
Square D
150
600
HDA36150U43XBCUDYP
HDA36150U43XBCUDYP
In Stock
From
$2,713.52
Square D
150
600
HDA36150U43XBCUH
HDA36150U43XBCUH
In Stock
From
$2,713.52
Square D
150
600
HDA36150U43XBCUHYP
HDA36150U43XBCUHYP
In Stock
From
$2,713.52
Square D
150
600
HDA36150U43XBCUJ
HDA36150U43XBCUJ
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.