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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
HDA36150ABBKSLYP
HDA36150ABBKSLYP
In Stock
From
$2,713.52
Square D
150
600
HDA36150ABBKSN
HDA36150ABBKSN
In Stock
From
$2,713.52
Square D
150
600
HDA36150ABBKSNYP
HDA36150ABBKSNYP
In Stock
From
$2,713.52
Square D
150
600
HDA36150ABBKSP
HDA36150ABBKSP
In Stock
From
$2,713.52
Square D
150
600
HDA36150ABBKSPYP
HDA36150ABBKSPYP
In Stock
From
$2,713.52
Square D
150
600
HDA36150ABBKSR
HDA36150ABBKSR
In Stock
From
$2,713.52
Square D
150
600
HDA36150ABBKSRYP
HDA36150ABBKSRYP
In Stock
From
$2,713.52
Square D
150
600
HDA36150ABBKSV
HDA36150ABBKSV
In Stock
From
$2,713.52
Square D
150
600
HDA36150ABBKSVYP
HDA36150ABBKSVYP
In Stock
From
$2,713.52
Square D
150
600
HDA36150ABBKUA
HDA36150ABBKUA
In Stock
From
$2,713.52
Square D
150
600
HDA36150ABBKUAYP
HDA36150ABBKUAYP
In Stock
From
$2,713.52
Square D
150
600
HDA36150ABBKUD
HDA36150ABBKUD
In Stock
From
$2,713.52
Square D
150
600
HDA36150ABBKUDYP
HDA36150ABBKUDYP
In Stock
From
$2,713.52
Square D
150
600
HDA36150ABBKUH
HDA36150ABBKUH
In Stock
From
$2,713.52
Square D
150
600
HDA36150ABBKUHYP
HDA36150ABBKUHYP
In Stock
From
$2,713.52
Square D
150
600
HDA36150ABBKUJ
HDA36150ABBKUJ
In Stock
From
$2,713.52
Square D
150
600
HDA36150ABBKUJYP
HDA36150ABBKUJYP
In Stock
From
$2,713.52
Square D
150
600
HDA36150ABBKUK
HDA36150ABBKUK
In Stock
From
$2,713.52
Square D
150
600
HDA36150ABBKUKYP
HDA36150ABBKUKYP
In Stock
From
$2,713.52
Square D
150
600
HDA36150ABBKUN
HDA36150ABBKUN
In Stock
From
$2,713.52
Square D
150
600
HDA36150ABBKUNYP
HDA36150ABBKUNYP
In Stock
From
$2,713.52
Square D
150
600
HDA36150ABBKUO
HDA36150ABBKUO
In Stock
From
$2,713.52
Square D
150
600
HDA36150ABBKUOYP
HDA36150ABBKUOYP
In Stock
From
$2,713.52
Square D
150
600
HDA36150ABBKUP
HDA36150ABBKUP
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.