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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
FJA34060
FJA34060
In Stock
From
$1,469.67
Schneider Electric
60
480
FJA34070
FJA34070
In Stock
From
$617.66
Schneider Electric
70
480
FJA34080
FJA34080
In Stock
From
$543.24
Schneider Electric
80
480
FMKF250
FMKF250
In Stock
From
$1,522.75
Siemens
250
1000
FW3032JL
FW3032JL
In Stock
From
$1,579.64
Eaton
32
690
FW3040JL
FW3040JL
In Stock
From
$1,579.64
Cutler Hammer
40
690
FW3160L
FW3160L
In Stock
From
$3,707.71
Eaton
160
690
FW3200JL
FW3200JL
In Stock
From
$3,955.16
Eaton
200
690
FW4200L
FW4200L
In Stock
From
$6,427.77
Westinghouse
200
690
FWF2200L
FWF2200L
In Stock
From
$3,136.05
Eaton
200
690
FWF3016L
FWF3016L
In Stock
From
$1,533.94
Eaton
16
690
FWF3032L
FWF3032L
Limited Stock
From
Get Price
Eaton
32
690
FWF3100KL
FWF3100KL
In Stock
From
$1,211.35
Eaton
100
690
FWF4040L
FWF4040L
In Stock
From
$1,416.63
Eaton
40
690
FWF4050L
FWF4050L
In Stock
From
$2,324.02
Eaton
50
690
FWF4063L
FWF4063L
In Stock
From
$2,089.07
Westinghouse
63
690
FXD62S250AL
FXD62S250AL
In Stock
From
$1,223.33
Siemens
250
600
FXD63B150L
FXD63B150L
In Stock
From
$843.76
Siemens
150
600
FXD63B200L
FXD63B200L
In Stock
From
$710.44
Siemens
200
600
FXD63L150
FXD63L150
In Stock
From
$875.11
Siemens
150
600
FXD63M150
FXD63M150
In Stock
From
$1,298.10
Siemens
150
600
FXD63M250
FXD63M250
In Stock
From
$863.87
Siemens
250
600
FXD63S250A
FXD63S250A
In Stock
From
$1,225.31
Siemens
250
600
FXD63S250AL
FXD63S250AL
In Stock
From
$410.56
Siemens
250
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.