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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
HDA36090AAUPYP
HDA36090AAUPYP
In Stock
From
$1,080.28
Square D
90
600
HDA36090AAUR
HDA36090AAUR
In Stock
From
$1,080.28
Square D
90
600
HDA36090AAURYP
HDA36090AAURYP
In Stock
From
$1,080.28
Square D
90
600
HDA36090AAUS
HDA36090AAUS
In Stock
From
$1,080.28
Square D
90
600
HDA36090AAUSYP
HDA36090AAUSYP
In Stock
From
$1,080.28
Square D
90
600
HDA36090AAYP
HDA36090AAYP
In Stock
From
$1,080.28
Square D
90
600
HDA36090AB
HDA36090AB
In Stock
From
$1,080.28
Square D
90
600
HDA36090ABBC
HDA36090ABBC
In Stock
From
$1,080.28
Square D
90
600
HDA36090ABBCSD
HDA36090ABBCSD
In Stock
From
$1,080.28
Square D
90
600
HDA36090ABBCSDYP
HDA36090ABBCSDYP
In Stock
From
$1,080.28
Square D
90
600
HDA36090ABBCSH
HDA36090ABBCSH
In Stock
From
$1,080.28
Square D
90
600
HDA36090ABBCSHYP
HDA36090ABBCSHYP
In Stock
From
$1,080.28
Square D
90
600
HDA36090ABBCSJ
HDA36090ABBCSJ
In Stock
From
$1,080.28
Square D
90
600
HDA36090ABBCSJYP
HDA36090ABBCSJYP
In Stock
From
$1,080.28
Square D
90
600
HDA36090ABBCSK
HDA36090ABBCSK
In Stock
From
$1,080.28
Square D
90
600
HDA36090ABBCSKYP
HDA36090ABBCSKYP
In Stock
From
$1,080.28
Square D
90
600
HDA36090ABBCSL
HDA36090ABBCSL
In Stock
From
$1,080.28
Square D
90
600
HDA36090ABBCSLYP
HDA36090ABBCSLYP
In Stock
From
$1,080.28
Square D
90
600
HDA36090ABBCSN
HDA36090ABBCSN
In Stock
From
$1,080.28
Square D
90
600
HDA36090ABBCSNYP
HDA36090ABBCSNYP
In Stock
From
$1,080.28
Square D
90
600
HDA36090ABBCSP
HDA36090ABBCSP
In Stock
From
$1,080.28
Square D
90
600
HDA36090ABBCSPYP
HDA36090ABBCSPYP
In Stock
From
$1,080.28
Square D
90
600
HDA36090ABBCSR
HDA36090ABBCSR
In Stock
From
$1,080.28
Square D
90
600
HDA36090ABBCSRYP
HDA36090ABBCSRYP
In Stock
From
$1,080.28
Square D
90
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.