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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
HGA36020AEBKUS
HGA36020AEBKUS
In Stock
From
$833.50
Square D
20
600
HGA36020AEBKUSYP
HGA36020AEBKUSYP
In Stock
From
$833.50
Square D
20
600
HGA36020AEBKYP
HGA36020AEBKYP
In Stock
From
$833.50
Square D
20
600
HGA36020AESD
HGA36020AESD
In Stock
From
$833.50
Square D
20
600
HGA36020AESDYP
HGA36020AESDYP
In Stock
From
$833.50
Square D
20
600
HGA36020AESH
HGA36020AESH
In Stock
From
$833.50
Square D
20
600
HGA36020AESHYP
HGA36020AESHYP
In Stock
From
$833.50
Square D
20
600
HGA36020AESJ
HGA36020AESJ
In Stock
From
$833.50
Square D
20
600
HGA36020AESJYP
HGA36020AESJYP
In Stock
From
$833.50
Square D
20
600
HGA36020AESK
HGA36020AESK
In Stock
From
$833.50
Square D
20
600
HGA36020AESKYP
HGA36020AESKYP
In Stock
From
$833.50
Square D
20
600
HGA36020AESL
HGA36020AESL
In Stock
From
$833.50
Square D
20
600
HGA36020AESLYP
HGA36020AESLYP
In Stock
From
$833.50
Square D
20
600
HGA36020AESN
HGA36020AESN
In Stock
From
$833.50
Square D
20
600
HGA36020AESNYP
HGA36020AESNYP
In Stock
From
$833.50
Square D
20
600
HGA36020AESP
HGA36020AESP
In Stock
From
$833.50
Square D
20
600
HGA36020AESPYP
HGA36020AESPYP
In Stock
From
$833.50
Square D
20
600
HGA36020AESR
HGA36020AESR
In Stock
From
$833.50
Square D
20
600
HGA36020AESRYP
HGA36020AESRYP
In Stock
From
$833.50
Square D
20
600
HGA36020AESV
HGA36020AESV
In Stock
From
$833.50
Square D
20
600
HGA36020AESVYP
HGA36020AESVYP
In Stock
From
$833.50
Square D
20
600
HGA36020AEUA
HGA36020AEUA
In Stock
From
$833.50
Square D
20
600
HGA36020AEUAYP
HGA36020AEUAYP
In Stock
From
$833.50
Square D
20
600
HGA36020AEUD
HGA36020AEUD
In Stock
From
$833.50
Square D
20
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.