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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
HF621040
HF621040
In Stock
From
$940.23
Federal Pacific
40
600
HF621045
HF621045
In Stock
From
$159.25
Federal Pacific
45
600
HF621050
HF621050
In Stock
From
$157.42
Federal Pacific
50
600
HF621070
HF621070
In Stock
From
$512.68
Federal Pacific
70
600
HF621090
HF621090
In Stock
From
$204.14
Federal Pacific
90
600
HF621100
HF621100
In Stock
From
$262.27
Federal Pacific
100
600
HF631015
HF631015
In Stock
From
$78.21
Federal Pacific
15
600
HF631015R
HF631015R
In Stock
From
$115.86
Federal Pacific
15
600
HF631020R
HF631020R
In Stock
From
$237.25
Federal Pacific
20
600
HF631025
HF631025
In Stock
From
$307.74
Federal Pacific
25
600
HF631025R
HF631025R
In Stock
From
$517.41
Federal Pacific
25
600
HF631030R
HF631030R
In Stock
From
$354.10
Federal Pacific
30
600
HF631035
HF631035
In Stock
From
$225.67
Federal Pacific
35
600
HF631035R
HF631035R
In Stock
From
$450.82
Federal Pacific
35
600
HF631040R
HF631040R
In Stock
From
Get Price
Federal Pacific
40
600
HF631045
HF631045
In Stock
From
$250.02
Federal Pacific
45
600
HF631045R
HF631045R
In Stock
From
$649.12
Federal Pacific
45
600
HF631050R
HF631050R
In Stock
From
$165.78
Federal Pacific
50
600
HF631070R
HF631070R
In Stock
From
$442.68
Federal Pacific
70
600
HF631080
HF631080
In Stock
From
$907.30
Federal Pacific
80
600
HF631080R
HF631080R
In Stock
From
$497.71
Federal Pacific
80
600
HF631090
HF631090
In Stock
From
$1,191.06
Federal Pacific
90
600
HF631090R
HF631090R
In Stock
From
$655.04
Federal Pacific
90
600
HF631100R
HF631100R
In Stock
From
$384.38
Federal Pacific
100
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.