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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
FD3150LSS02
FD3150LSS02
In Stock
From
$1,643.25
Eaton
150
600
FD3200Y
FD3200Y
In Stock
From
$408.14
Eaton
200
600
FD4100V
FD4100V
In Stock
From
$162.22
Westinghouse
100
600
FDB2045
FDB2045
In Stock
From
$238.09
Westinghouse
45
600
FDB3010S
FDB3010S
In Stock
From
$597.53
Eaton
10
600
FDB3020S
FDB3020S
In Stock
From
$326.05
Eaton
20
600
FDB3025S
FDB3025S
In Stock
From
$923.04
Eaton
25
600
FDB3070
FDB3070
In Stock
From
$520.82
Eaton
70
600
FDB3100
FDB3100
In Stock
From
$362.22
Eaton
100
600
FDB3100A06
FDB3100A06
In Stock
From
$880.67
Westinghouse
100
600
FDB3100LM04S06
FDB3100LM04S06
In Stock
From
$602.87
Eaton
100
600
FDB3175
FDB3175
Limited Stock
From
Get Price
Westinghouse
175
600
FDB4010L
FDB4010L
In Stock
From
$464.23
Eaton
10
600
FDB4020
FDB4020
In Stock
From
$585.61
Westinghouse
20
600
FDB4025
FDB4025
In Stock
From
$544.99
Westinghouse
25
600
FDB4025L
FDB4025L
In Stock
From
$457.60
Eaton
25
600
FDB4030
FDB4030
In Stock
From
$561.57
Cutler Hammer
30
600
FDB4035L
FDB4035L
In Stock
From
$459.54
Eaton
35
600
FDB4045
FDB4045
In Stock
From
$587.32
Cutler Hammer
45
600
FDB4045L
FDB4045L
In Stock
From
$464.05
Eaton
45
600
FDB4110
FDB4110
In Stock
From
$699.94
Westinghouse
110
600
FDB4110L
FDB4110L
In Stock
From
$1,147.51
Eaton
110
600
FDB4125
FDB4125
In Stock
From
$1,939.06
Eaton
125
600
FDC2035L
FDC2035L
In Stock
From
$572.70
Eaton
35
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.