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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
JB2150W
JB2150W
In Stock
From
$245.86
Cutler Hammer
150
600
JB2250W
JB2250W
In Stock
From
$1,432.10
Cutler Hammer
250
600
JDB2090
JDB2090
In Stock
From
$379.75
Eaton
90
600
JDB2090W
JDB2090W
In Stock
From
$352.70
Cutler Hammer
90
600
JDB2125X
JDB2125X
In Stock
From
$978.20
Westinghouse
125
600
JDB3070X
JDB3070X
In Stock
From
$1,051.43
Westinghouse
70
600
JDB3090X
JDB3090X
In Stock
From
Get Price
Cutler Hammer
90
600
JDB3100X
JDB3100X
In Stock
From
$607.30
Eaton
100
600
JDB3250F
JDB3250F
In Stock
From
$160.11
Cutler Hammer
250
600
JDB4150
JDB4150
In Stock
From
$66.67
Cutler Hammer
150
600
JDC2070
JDC2070
In Stock
From
$614.30
Westinghouse
70
600
JDC2090
JDC2090
In Stock
From
$1,726.24
Westinghouse
90
600
JDC2100
JDC2100
In Stock
From
$632.30
Westinghouse
100
600
JDC2150
JDC2150
In Stock
From
$1,656.38
Westinghouse
150
600
JDC2225
JDC2225
In Stock
From
$2,070.15
Eaton
225
600
JDC2250
JDC2250
In Stock
From
$2,592.47
Westinghouse
250
600
JDC3070W
JDC3070W
In Stock
From
$967.86
Eaton
70
600
JDC3090W
JDC3090W
In Stock
From
$1,556.24
Cutler Hammer
90
600
JDC3100W
JDC3100W
In Stock
From
$1,018.27
Westinghouse
100
600
JDC3125W
JDC3125W
In Stock
From
$1,662.35
Cutler Hammer
125
600
JDC3150W
JDC3150W
In Stock
From
$4,871.48
Westinghouse
150
600
JDC3200W
JDC3200W
In Stock
From
$1,539.76
Westinghouse
200
600
JDC3225W
JDC3225W
In Stock
From
$1,243.50
Westinghouse
225
600
JGC3150FAG
JGC3150FAG
In Stock
From
$4,256.40
Cutler Hammer
150
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.