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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
HEB1B070B
HEB1B070B
In Stock
From
$331.83
Siemens
70
277
HEB2B015
HEB2B015
In Stock
From
$300.96
Siemens
15
600
HEB2B025
HEB2B025
In Stock
From
$308.33
Siemens
25
600
HEB2B035
HEB2B035
In Stock
From
$305.93
Siemens
35
600
HEB2B035B
HEB2B035B
In Stock
From
$170.27
Siemens
35
600
HEB2B045
HEB2B045
In Stock
From
$305.93
Siemens
45
600
HEB2B050
HEB2B050
In Stock
From
$339.70
Siemens
50
600
HEB2B060
HEB2B060
In Stock
From
$207.10
Siemens
60
600
HEB2B070
HEB2B070
In Stock
From
$310.73
Siemens
70
600
HEB2B070B
HEB2B070B
In Stock
From
$195.21
Siemens
70
600
HEB2B080
HEB2B080
In Stock
From
$310.73
Siemens
80
600
HEB2B080B
HEB2B080B
In Stock
From
$175.39
Siemens
80
600
HEB2B090
HEB2B090
In Stock
From
$310.72
Siemens
90
600
HEB2B110
HEB2B110
In Stock
From
$616.72
Siemens
110
600
HEB2B125
HEB2B125
In Stock
From
$430.36
Siemens
125
600
HEB3B015L
HEB3B015L
In Stock
From
$1,068.88
Siemens
15
600
HEB3B035B
HEB3B035B
In Stock
From
$1,247.14
Siemens
35
600
HEB3B045B
HEB3B045B
In Stock
From
$1,618.34
Siemens
45
600
HEB3B045L
HEB3B045L
In Stock
From
$750.83
Siemens
45
600
HEB3B070L
HEB3B070L
In Stock
From
$1,901.40
Siemens
70
600
HEB3B080B
HEB3B080B
In Stock
From
$2,165.44
Siemens
80
600
HEB3B090B
HEB3B090B
In Stock
From
$3,028.73
Siemens
90
600
HED42M040
HED42M040
In Stock
From
$240.51
Siemens
40
480
HED42M070
HED42M070
In Stock
From
$334.27
Siemens
70
480
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.