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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
FB3020S
FB3020S
In Stock
From
$283.60
Westinghouse
20
600
FB3025
FB3025
In Stock
From
$60.23
Cutler Hammer
25
600
FB3030
FB3030
In Stock
From
$158.78
Cutler Hammer
30
600
FB3030L
FB3030L
In Stock
From
$411.54
Cutler Hammer
30
600
FB3035
FB3035
In Stock
From
$151.62
Westinghouse
35
600
FB3040
FB3040
In Stock
From
$160.48
Cutler Hammer
40
600
FB3050
FB3050
In Stock
From
$153.55
Cutler Hammer
50
600
FB3050L
FB3050L
In Stock
From
$142.77
Cutler Hammer
50
600
FB3060
FB3060
In Stock
From
$191.65
Westinghouse
60
600
FB3060L
FB3060L
In Stock
From
$218.87
Cutler Hammer
60
600
FB3070
FB3070
In Stock
From
$236.23
Westinghouse
70
600
FB3090
FB3090
In Stock
From
$495.03
Westinghouse
90
600
FB3100
FB3100
In Stock
From
$288.22
Westinghouse
100
600
FB3100L
FB3100L
In Stock
From
$288.22
Westinghouse
100
600
FB3100S
FB3100S
In Stock
From
$421.33
Cutler Hammer
100
600
FB3125
FB3125
In Stock
From
$875.34
Cutler Hammer
125
600
FB3125L
FB3125L
In Stock
From
$949.11
Westinghouse
125
600
FB3150
FB3150
In Stock
From
$90.99
Cutler Hammer
150
600
FB3150N
FB3150N
In Stock
From
$40.16
Westinghouse
150
600
FD1010L
FD1010L
In Stock
From
$181.50
Eaton
10
277
FD1015
FD1015
In Stock
From
$104.46
Eaton
15
277
FD1015L
FD1015L
In Stock
From
$265.07
Eaton
15
277
FD1020BP10
FD1020BP10
In Stock
From
$170.10
Eaton
20
277
FD1020L
FD1020L
In Stock
From
$306.04
Eaton
20
277
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.