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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
FW3020JL
FW3020JL
In Stock
From
$938.54
Cutler Hammer
20
690
FXD62A150
FXD62A150
In Stock
From
$789.41
Siemens
150
600
FXD62A150L
FXD62A150L
In Stock
From
$789.41
Siemens
150
600
FXD62A250
FXD62A250
In Stock
From
$934.94
Siemens
250
600
FXD62A250L
FXD62A250L
In Stock
From
$934.94
Siemens
250
600
FXD62S250AL
FXD62S250AL
In Stock
From
$934.94
Siemens
250
600
FXD63A250
FXD63A250
In Stock
From
$842.16
Siemens
250
600
FXD63A250L
FXD63A250L
In Stock
From
$842.16
Siemens
250
600
FXD63B090L
FXD63B090L
In Stock
From
$781.88
Siemens
90
600
FXD63B100L
FXD63B100L
In Stock
From
$700.16
Siemens
100
600
FXD63B125L
FXD63B125L
In Stock
From
$616.04
Siemens
125
600
FXD63B175L
FXD63B175L
In Stock
From
$596.69
Siemens
175
600
FXD63B225L
FXD63B225L
In Stock
From
$417.17
Siemens
225
600
FXD63L150L
FXD63L150L
In Stock
From
$733.42
Siemens
150
600
FXD63M175
FXD63M175
In Stock
From
$2,041.51
Siemens
175
600
FXD63S250AL
FXD63S250AL
In Stock
From
$328.45
Siemens
250
600
FXD63S250L
FXD63S250L
In Stock
From
$721.85
Siemens
250
600
FY14060B
FY14060B
In Stock
From
$51.87
Square D
60
277
FY14070B
FY14070B
In Stock
From
$96.21
Square D
70
277
FY14100A
FY14100A
In Stock
From
$6.98
Square D
100
277
FYB14015A
FYB14015A
In Stock
From
$111.10
Square D
15
277
FYB14015B
FYB14015B
In Stock
From
$36.94
Square D
15
277
GB1030
GB1030
In Stock
From
$24.20
Cutler Hammer
30
120
GBH3015
GBH3015
In Stock
From
$667.18
Cutler Hammer
15
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.