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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
HDA36090AESVYP
HDA36090AESVYP
In Stock
From
$1,080.28
Square D
90
600
HDA36090AEUA
HDA36090AEUA
In Stock
From
$1,080.28
Square D
90
600
HDA36090AEUAYP
HDA36090AEUAYP
In Stock
From
$1,080.28
Square D
90
600
HDA36090AEUD
HDA36090AEUD
In Stock
From
$1,080.28
Square D
90
600
HDA36090AEUDYP
HDA36090AEUDYP
In Stock
From
$1,080.28
Square D
90
600
HDA36090AEUH
HDA36090AEUH
In Stock
From
$1,080.28
Square D
90
600
HDA36090AEUHYP
HDA36090AEUHYP
In Stock
From
$1,080.28
Square D
90
600
HDA36090AEUJ
HDA36090AEUJ
In Stock
From
$1,080.28
Square D
90
600
HDA36090AEUJYP
HDA36090AEUJYP
In Stock
From
$1,080.28
Square D
90
600
HDA36090AEUK
HDA36090AEUK
In Stock
From
$1,080.28
Square D
90
600
HDA36090AEUKYP
HDA36090AEUKYP
In Stock
From
$1,080.28
Square D
90
600
HDA36090AEUN
HDA36090AEUN
In Stock
From
$1,080.28
Square D
90
600
HDA36090AEUNYP
HDA36090AEUNYP
In Stock
From
$1,080.28
Square D
90
600
HDA36090AEUO
HDA36090AEUO
In Stock
From
$1,080.28
Square D
90
600
HDA36090AEUOYP
HDA36090AEUOYP
In Stock
From
$1,080.28
Square D
90
600
HDA36090AEUP
HDA36090AEUP
In Stock
From
$1,080.28
Square D
90
600
HDA36090AEUPYP
HDA36090AEUPYP
In Stock
From
$1,080.28
Square D
90
600
HDA36090AEUR
HDA36090AEUR
In Stock
From
$1,080.28
Square D
90
600
HDA36090AEURYP
HDA36090AEURYP
In Stock
From
$1,080.28
Square D
90
600
HDA36090AEUS
HDA36090AEUS
In Stock
From
$1,080.28
Square D
90
600
HDA36090AEUSYP
HDA36090AEUSYP
In Stock
From
$1,080.28
Square D
90
600
HDA36090AEYP
HDA36090AEYP
In Stock
From
$1,080.28
Square D
90
600
HDA36090AF
HDA36090AF
In Stock
From
$1,080.28
Square D
90
600
HDA36090AFBC
HDA36090AFBC
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.