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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
HDA36150BCUR
HDA36150BCUR
In Stock
From
$2,713.52
Square D
150
600
HDA36150BCURYP
HDA36150BCURYP
In Stock
From
$2,713.52
Square D
150
600
HDA36150BCUS
HDA36150BCUS
In Stock
From
$2,713.52
Square D
150
600
HDA36150BCUSYP
HDA36150BCUSYP
In Stock
From
$2,713.52
Square D
150
600
HDA36150BCYP
HDA36150BCYP
In Stock
From
$2,713.52
Square D
150
600
HDA36150BE
HDA36150BE
In Stock
From
$2,713.52
Square D
150
600
HDA36150BESD
HDA36150BESD
In Stock
From
$2,713.52
Square D
150
600
HDA36150BESDYP
HDA36150BESDYP
In Stock
From
$2,713.52
Square D
150
600
HDA36150BESH
HDA36150BESH
In Stock
From
$2,713.52
Square D
150
600
HDA36150BESHYP
HDA36150BESHYP
In Stock
From
$2,713.52
Square D
150
600
HDA36150BESJ
HDA36150BESJ
In Stock
From
$2,713.52
Square D
150
600
HDA36150BESJYP
HDA36150BESJYP
In Stock
From
$2,713.52
Square D
150
600
HDA36150BESK
HDA36150BESK
In Stock
From
$2,713.52
Square D
150
600
HDA36150BESKYP
HDA36150BESKYP
In Stock
From
$2,713.52
Square D
150
600
HDA36150BESL
HDA36150BESL
In Stock
From
$2,713.52
Square D
150
600
HDA36150BESLYP
HDA36150BESLYP
In Stock
From
$2,713.52
Square D
150
600
HDA36150BESN
HDA36150BESN
In Stock
From
$2,713.52
Square D
150
600
HDA36150BESNYP
HDA36150BESNYP
In Stock
From
$2,713.52
Square D
150
600
HDA36150BESP
HDA36150BESP
In Stock
From
$2,713.52
Square D
150
600
HDA36150BESPYP
HDA36150BESPYP
In Stock
From
$2,713.52
Square D
150
600
HDA36150BESR
HDA36150BESR
In Stock
From
$2,713.52
Square D
150
600
HDA36150BESRYP
HDA36150BESRYP
In Stock
From
$2,713.52
Square D
150
600
HDA36150BESV
HDA36150BESV
In Stock
From
$2,713.52
Square D
150
600
HDA36150BESVYP
HDA36150BESVYP
In Stock
From
$2,713.52
Square D
150
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.