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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
HEF437090
HEF437090
In Stock
From
$684.90
Federal Pacific
90
480
HEF437100
HEF437100
In Stock
From
$315.86
Federal Pacific
100
480
HEF437125
HEF437125
In Stock
From
$1,033.66
Federal Pacific
125
480
HEF437150
HEF437150
In Stock
From
$934.79
Federal Pacific
150
480
HEF631015
HEF631015
In Stock
From
$93.92
Federal Pacific
15
600
HEF631020
HEF631020
In Stock
From
$296.57
Federal Pacific
20
600
HEF631025
HEF631025
In Stock
From
$239.68
Federal Pacific
25
600
HEF631030
HEF631030
In Stock
From
$377.97
Federal Pacific
30
600
HEF631035
HEF631035
In Stock
From
$165.45
Federal Pacific
35
600
HEF631040
HEF631040
In Stock
From
$404.49
Federal Pacific
40
600
HEF631045
HEF631045
In Stock
From
$266.54
Federal Pacific
45
600
HEF631050
HEF631050
In Stock
From
$384.84
Federal Pacific
50
600
HEF631060
HEF631060
In Stock
From
$613.75
Federal Pacific
60
600
HEF631070
HEF631070
In Stock
From
$473.45
Federal Pacific
70
600
HEF631080
HEF631080
In Stock
From
$586.32
Federal Pacific
80
600
HEF631090
HEF631090
In Stock
From
$205.92
Federal Pacific
90
600
HF631040
HF631040
In Stock
From
$172.78
Federal Pacific
40
600
HF631050
HF631050
In Stock
From
$127.42
Federal Pacific
50
600
HF631070
HF631070
In Stock
From
$242.28
Federal Pacific
70
600
HM622000
HM622000
In Stock
From
$1,709.73
Federal Pacific
800
600
HM622150
HM622150
In Stock
From
$5,575.58
Federal Pacific
150
600
HM622175
HM622175
In Stock
From
$5,543.98
Federal Pacific
175
600
HM622200
HM622200
In Stock
From
$5,634.62
Federal Pacific
200
600
HM622225
HM622225
In Stock
From
$5,641.64
Federal Pacific
225
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.