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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
FB2010
FB2010
In Stock
From
$11.81
Cutler Hammer
10
600
FB2015
FB2015
In Stock
From
$150.96
Cutler Hammer
15
600
FB2015L
FB2015L
In Stock
From
$150.96
Cutler Hammer
15
600
FB2020L
FB2020L
In Stock
From
Get Price
Westinghouse
20
600
FB2030L
FB2030L
In Stock
From
Get Price
Cutler Hammer
30
600
FB2040L
FB2040L
In Stock
From
$236.82
Westinghouse
40
600
FB2060
FB2060
In Stock
From
$59.43
Westinghouse
60
600
FB2070
FB2070
In Stock
From
$54.23
Cutler Hammer
70
600
FB2100L
FB2100L
In Stock
From
$276.42
Westinghouse
100
600
FB2100N
FB2100N
In Stock
From
$234.55
Westinghouse
100
600
FB2110ML
FB2110ML
In Stock
From
$383.82
Cutler Hammer
10
600
FB2125L
FB2125L
Limited Stock
From
Get Price
Westinghouse
125
600
FB2150N
FB2150N
In Stock
From
$317.70
Cutler Hammer
150
600
FB21550MRL
FB21550MRL
In Stock
From
$197.87
Cutler Hammer
100
600
FB2480MRL
FB2480MRL
In Stock
From
$546.95
Westinghouse
50
600
FB3015S
FB3015S
In Stock
From
$249.84
Cutler Hammer
15
600
FB3020PF
FB3020PF
In Stock
From
$283.60
Westinghouse
20
600
FB3025L
FB3025L
In Stock
From
$93.71
Cutler Hammer
25
600
FB3030S
FB3030S
In Stock
From
$561.36
Westinghouse
30
600
FB3040L
FB3040L
In Stock
From
$183.36
Cutler Hammer
40
600
FB3040PF
FB3040PF
In Stock
From
$480.73
Westinghouse
40
600
FB3040S
FB3040S
In Stock
From
$576.96
Westinghouse
40
600
FB3045
FB3045
In Stock
From
$120.41
Cutler Hammer
45
600
FB3045ML
FB3045ML
In Stock
From
$166.25
Westinghouse
5
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.