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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
HDA36050BCUO
HDA36050BCUO
In Stock
From
$1,201.01
Square D
50
600
HDA36050BCUOYP
HDA36050BCUOYP
In Stock
From
$1,201.01
Square D
50
600
HDA36050BCUP
HDA36050BCUP
In Stock
From
$1,201.01
Square D
50
600
HDA36050BCUPYP
HDA36050BCUPYP
In Stock
From
$1,201.01
Square D
50
600
HDA36050BCUR
HDA36050BCUR
In Stock
From
$1,201.01
Square D
50
600
HDA36050BCURYP
HDA36050BCURYP
In Stock
From
$1,201.01
Square D
50
600
HDA36050BCUS
HDA36050BCUS
In Stock
From
$1,201.01
Square D
50
600
HDA36050BCUSYP
HDA36050BCUSYP
In Stock
From
$1,201.01
Square D
50
600
HDA36050BCYP
HDA36050BCYP
In Stock
From
$1,201.01
Square D
50
600
HDA36050BE
HDA36050BE
In Stock
From
$1,201.01
Square D
50
600
HDA36050BESD
HDA36050BESD
In Stock
From
$1,201.01
Square D
50
600
HDA36050BESDYP
HDA36050BESDYP
In Stock
From
$1,201.01
Square D
50
600
HDA36050BESH
HDA36050BESH
In Stock
From
$1,201.01
Square D
50
600
HDA36050BESHYP
HDA36050BESHYP
In Stock
From
$1,201.01
Square D
50
600
HDA36050BESJ
HDA36050BESJ
In Stock
From
$1,201.01
Square D
50
600
HDA36050BESJYP
HDA36050BESJYP
In Stock
From
$1,201.01
Square D
50
600
HDA36050BESK
HDA36050BESK
In Stock
From
$1,201.01
Square D
50
600
HDA36050BESKYP
HDA36050BESKYP
In Stock
From
$1,201.01
Square D
50
600
HDA36050BESL
HDA36050BESL
In Stock
From
$1,201.01
Square D
50
600
HDA36050BESLYP
HDA36050BESLYP
In Stock
From
$1,201.01
Square D
50
600
HDA36050BESN
HDA36050BESN
In Stock
From
$1,201.01
Square D
50
600
HDA36050BESNYP
HDA36050BESNYP
In Stock
From
$1,201.01
Square D
50
600
HDA36050BESP
HDA36050BESP
In Stock
From
$1,201.01
Square D
50
600
HDA36050BESPYP
HDA36050BESPYP
In Stock
From
$1,201.01
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.