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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
HGA36050AESR
HGA36050AESR
In Stock
From
$778.84
Square D
50
600
HGA36050AESRYP
HGA36050AESRYP
In Stock
From
$778.84
Square D
50
600
HGA36050AESV
HGA36050AESV
In Stock
From
$778.84
Square D
50
600
HGA36050AESVYP
HGA36050AESVYP
In Stock
From
$778.84
Square D
50
600
HGA36050AEUA
HGA36050AEUA
In Stock
From
$778.84
Square D
50
600
HGA36050AEUAYP
HGA36050AEUAYP
In Stock
From
$778.84
Square D
50
600
HGA36050AEUD
HGA36050AEUD
In Stock
From
$778.84
Square D
50
600
HGA36050AEUDYP
HGA36050AEUDYP
In Stock
From
$778.84
Square D
50
600
HGA36050AEUH
HGA36050AEUH
In Stock
From
$778.84
Square D
50
600
HGA36050AEUHYP
HGA36050AEUHYP
In Stock
From
$778.84
Square D
50
600
HGA36050AEUJ
HGA36050AEUJ
In Stock
From
$778.84
Square D
50
600
HGA36050AEUJYP
HGA36050AEUJYP
In Stock
From
$778.84
Square D
50
600
HGA36050AEUK
HGA36050AEUK
In Stock
From
$778.84
Square D
50
600
HGA36050AEUKYP
HGA36050AEUKYP
In Stock
From
$778.84
Square D
50
600
HGA36050AEUN
HGA36050AEUN
In Stock
From
$778.84
Square D
50
600
HGA36050AEUNYP
HGA36050AEUNYP
In Stock
From
$778.84
Square D
50
600
HGA36050AEUO
HGA36050AEUO
In Stock
From
$778.84
Square D
50
600
HGA36050AEUOYP
HGA36050AEUOYP
In Stock
From
$778.84
Square D
50
600
HGA36050AEUP
HGA36050AEUP
In Stock
From
$778.84
Square D
50
600
HGA36050AEUPYP
HGA36050AEUPYP
In Stock
From
$778.84
Square D
50
600
HGA36050AEUR
HGA36050AEUR
In Stock
From
$778.84
Square D
50
600
HGA36050AEURYP
HGA36050AEURYP
In Stock
From
$778.84
Square D
50
600
HGA36050AEUS
HGA36050AEUS
In Stock
From
$778.84
Square D
50
600
HGA36050AEUSYP
HGA36050AEUSYP
In Stock
From
$778.84
Square D
50
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.