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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
HDA36100U43XBCSPYP
HDA36100U43XBCSPYP
In Stock
From
$1,782.47
Square D
100
600
HDA36100U43XBCSR
HDA36100U43XBCSR
In Stock
From
$1,782.47
Square D
100
600
HDA36100U43XBCSRYP
HDA36100U43XBCSRYP
In Stock
From
$1,782.47
Square D
100
600
HDA36100U43XBCSV
HDA36100U43XBCSV
In Stock
From
$1,782.47
Square D
100
600
HDA36100U43XBCSVYP
HDA36100U43XBCSVYP
In Stock
From
$1,782.47
Square D
100
600
HDA36100U43XBCUA
HDA36100U43XBCUA
In Stock
From
$1,782.47
Square D
100
600
HDA36100U43XBCUAYP
HDA36100U43XBCUAYP
In Stock
From
$1,782.47
Square D
100
600
HDA36100U43XBCUD
HDA36100U43XBCUD
In Stock
From
$1,782.47
Square D
100
600
HDA36100U43XBCUDYP
HDA36100U43XBCUDYP
In Stock
From
$1,782.47
Square D
100
600
HDA36100U43XBCUH
HDA36100U43XBCUH
In Stock
From
$1,782.47
Square D
100
600
HDA36100U43XBCUHYP
HDA36100U43XBCUHYP
In Stock
From
$1,782.47
Square D
100
600
HDA36100U43XBCUJ
HDA36100U43XBCUJ
In Stock
From
$1,782.47
Square D
100
600
HDA36100U43XBCUJYP
HDA36100U43XBCUJYP
In Stock
From
$1,782.47
Square D
100
600
HDA36100U43XBCUK
HDA36100U43XBCUK
In Stock
From
$1,782.47
Square D
100
600
HDA36100U43XBCUKYP
HDA36100U43XBCUKYP
In Stock
From
$1,782.47
Square D
100
600
HDA36100U43XBCUN
HDA36100U43XBCUN
In Stock
From
$1,782.47
Square D
100
600
HDA36100U43XBCUNYP
HDA36100U43XBCUNYP
In Stock
From
$1,782.47
Square D
100
600
HDA36100U43XBCUO
HDA36100U43XBCUO
In Stock
From
$1,782.47
Square D
100
600
HDA36100U43XBCUOYP
HDA36100U43XBCUOYP
In Stock
From
$1,782.47
Square D
100
600
HDA36100U43XBCUP
HDA36100U43XBCUP
In Stock
From
$1,782.47
Square D
100
600
HDA36100U43XBCUPYP
HDA36100U43XBCUPYP
In Stock
From
$1,782.47
Square D
100
600
HDA36100U43XBCUR
HDA36100U43XBCUR
In Stock
From
$1,782.47
Square D
100
600
HDA36100U43XBCURYP
HDA36100U43XBCURYP
In Stock
From
$1,782.47
Square D
100
600
HDA36100U43XBCUS
HDA36100U43XBCUS
In Stock
From
$1,782.47
Square D
100
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.