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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
HDA36090AEBKUP
HDA36090AEBKUP
In Stock
From
$1,080.28
Square D
90
600
HDA36090AEBKUPYP
HDA36090AEBKUPYP
In Stock
From
$1,080.28
Square D
90
600
HDA36090AEBKUR
HDA36090AEBKUR
In Stock
From
$1,080.28
Square D
90
600
HDA36090AEBKURYP
HDA36090AEBKURYP
In Stock
From
$1,080.28
Square D
90
600
HDA36090AEBKUS
HDA36090AEBKUS
In Stock
From
$1,080.28
Square D
90
600
HDA36090AEBKUSYP
HDA36090AEBKUSYP
In Stock
From
$1,080.28
Square D
90
600
HDA36090AEBKYP
HDA36090AEBKYP
In Stock
From
$1,080.28
Square D
90
600
HDA36090AESD
HDA36090AESD
In Stock
From
$1,080.28
Square D
90
600
HDA36090AESDYP
HDA36090AESDYP
In Stock
From
$1,080.28
Square D
90
600
HDA36090AESH
HDA36090AESH
In Stock
From
$1,080.28
Square D
90
600
HDA36090AESHYP
HDA36090AESHYP
In Stock
From
$1,080.28
Square D
90
600
HDA36090AESJ
HDA36090AESJ
In Stock
From
$1,080.28
Square D
90
600
HDA36090AESJYP
HDA36090AESJYP
In Stock
From
$1,080.28
Square D
90
600
HDA36090AESK
HDA36090AESK
In Stock
From
$1,080.28
Square D
90
600
HDA36090AESKYP
HDA36090AESKYP
In Stock
From
$1,080.28
Square D
90
600
HDA36090AESL
HDA36090AESL
In Stock
From
$1,080.28
Square D
90
600
HDA36090AESLYP
HDA36090AESLYP
In Stock
From
$1,080.28
Square D
90
600
HDA36090AESN
HDA36090AESN
In Stock
From
$1,080.28
Square D
90
600
HDA36090AESNYP
HDA36090AESNYP
In Stock
From
$1,080.28
Square D
90
600
HDA36090AESP
HDA36090AESP
In Stock
From
$1,080.28
Square D
90
600
HDA36090AESPYP
HDA36090AESPYP
In Stock
From
$1,080.28
Square D
90
600
HDA36090AESR
HDA36090AESR
In Stock
From
$1,080.28
Square D
90
600
HDA36090AESRYP
HDA36090AESRYP
In Stock
From
$1,080.28
Square D
90
600
HDA36090AESV
HDA36090AESV
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.