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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
JGH3225FAG
JGH3225FAG
In Stock
From
$1,958.39
Cutler Hammer
225
600
JGL36175AASO
JGL36175AASO
In Stock
From
$298.03
Schneider Electric
175
600
JGN36150ABBESKML
JGN36150ABBESKML
In Stock
From
$355.53
Square D
150
600
JGS3090FAG
JGS3090FAG
In Stock
From
$934.56
Cutler Hammer
90
600
JGS3200FAGC
JGS3200FAGC
In Stock
From
$3,125.19
Cutler Hammer
200
600
JGS325033GC
JGS325033GC
In Stock
From
$727.91
Cutler Hammer
250
600
JJA362256
JJA362256
In Stock
From
$970.29
Square D
225
600
JLA36200SA
JLA36200SA
In Stock
From
$4,818.37
Square D
200
600
JXD22B250
JXD22B250
In Stock
From
$785.33
Siemens
250
240
JXD22B250L
JXD22B250L
In Stock
From
$785.33
Siemens
250
240
JXD22B400
JXD22B400
In Stock
From
$971.61
Siemens
400
240
JXD22B400L
JXD22B400L
In Stock
From
$1,291.16
Siemens
400
240
JXD23B300
JXD23B300
In Stock
From
$865.14
Siemens
300
240
JXD23B300L
JXD23B300L
In Stock
From
$1,181.88
Siemens
300
240
JXD62B200
JXD62B200
In Stock
From
$1,300.33
Siemens
200
600
JXD62B200L
JXD62B200L
In Stock
From
$1,105.20
Siemens
200
600
JXD63B350H
JXD63B350H
In Stock
From
$852.92
Siemens
350
600
JXD63B400H
JXD63B400H
In Stock
From
$2,208.37
Siemens
400
600
KC34250G
KC34250G
In Stock
From
$1,186.39
Square D
250
480
KD3100W
KD3100W
In Stock
From
$1,187.20
Westinghouse
100
600
KD3100X
KD3100X
In Stock
From
$1,187.20
Westinghouse
100
600
KD3100Y
KD3100Y
In Stock
From
$607.30
Eaton
100
600
KD3125W
KD3125W
In Stock
From
$934.01
Eaton
125
600
KD3125X
KD3125X
In Stock
From
$934.01
Eaton
125
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.