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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
HLA36100SV
HLA36100SV
In Stock
From
$2,072.23
Square D
100
600
HLA36100UA
HLA36100UA
In Stock
From
$2,072.23
Square D
100
600
HLA36100UD
HLA36100UD
In Stock
From
$2,072.23
Square D
100
600
HLA36100UH
HLA36100UH
In Stock
From
$2,072.23
Square D
100
600
HLA36100UJ
HLA36100UJ
In Stock
From
$2,072.23
Square D
100
600
HLA36100UK
HLA36100UK
In Stock
From
$2,072.23
Square D
100
600
HLA36100UN
HLA36100UN
In Stock
From
$2,072.23
Square D
100
600
HLA36100UO
HLA36100UO
In Stock
From
$2,072.23
Square D
100
600
HLA36100UP
HLA36100UP
In Stock
From
$2,072.23
Square D
100
600
HLA36100UR
HLA36100UR
In Stock
From
$2,072.23
Square D
100
600
HLA36100US
HLA36100US
In Stock
From
$2,072.23
Square D
100
600
HLA36150SD
HLA36150SD
In Stock
From
$4,858.93
Square D
150
600
HLA36150SH
HLA36150SH
In Stock
From
$4,858.93
Square D
150
600
HLA36150SJ
HLA36150SJ
In Stock
From
$4,858.93
Square D
150
600
HLA36150SK
HLA36150SK
In Stock
From
$4,858.93
Square D
150
600
HLA36150SL
HLA36150SL
In Stock
From
$4,858.93
Square D
150
600
HLA36150SN
HLA36150SN
In Stock
From
$4,858.93
Square D
150
600
HLA36150SP
HLA36150SP
In Stock
From
$4,858.93
Square D
150
600
HLA36150SR
HLA36150SR
In Stock
From
$4,858.93
Square D
150
600
HLA36150SV
HLA36150SV
In Stock
From
$4,858.93
Square D
150
600
HLA36150UA
HLA36150UA
In Stock
From
$4,858.93
Square D
150
600
HLA36150UD
HLA36150UD
In Stock
From
$4,858.93
Square D
150
600
HLA36150UH
HLA36150UH
In Stock
From
$4,858.93
Square D
150
600
HLA36150UJ
HLA36150UJ
In Stock
From
$4,858.93
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.