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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
KDB2225W
KDB2225W
In Stock
From
$1,662.13
Westinghouse
225
600
KDB2250
KDB2250
In Stock
From
$889.26
Eaton
250
600
KDB2250W
KDB2250W
In Stock
From
$889.26
Eaton
250
600
KDB2300
KDB2300
In Stock
From
$463.09
Westinghouse
300
600
KDB2300W
KDB2300W
In Stock
From
$1,248.30
Cutler Hammer
300
600
KDB2350W
KDB2350W
In Stock
From
$958.25
Cutler Hammer
350
600
KDB2400
KDB2400
In Stock
From
$463.40
Westinghouse
400
600
KDB2400W
KDB2400W
In Stock
From
$2,620.09
Westinghouse
400
600
KDC2100
KDC2100
In Stock
From
$2,601.71
Cutler Hammer
100
600
KDC2225
KDC2225
In Stock
From
Get Price
Westinghouse
225
600
KDC2250
KDC2250
In Stock
From
$2,592.47
Westinghouse
250
600
KDC2300
KDC2300
In Stock
From
$2,502.30
Westinghouse
300
600
KDC2350
KDC2350
In Stock
From
$2,561.06
Cutler Hammer
350
600
KDC2400
KDC2400
In Stock
From
$2,856.66
Westinghouse
400
600
KDC2400F
KDC2400F
In Stock
From
$2,314.87
Cutler Hammer
400
600
KDC3125LSIG
KDC3125LSIG
In Stock
From
$933.34
Eaton
125
600
KDL32175
KDL32175
In Stock
From
$616.50
Square D
175
240
KDL32200
KDL32200
In Stock
From
$668.75
Square D
200
240
KH26125AB
KH26125AB
In Stock
From
$1,612.10
Square D
125
600
KH362001021
KH362001021
In Stock
From
$1,041.18
Square D
200
600
KHL26250
KHL26250
In Stock
From
$1,414.90
Square D
250
600
KHL36000M
KHL36000M
In Stock
From
$1,324.08
Square D
250
600
KHL36000M1021
KHL36000M1021
In Stock
From
$2,062.16
Square D
250
600
KHL36110
KHL36110
In Stock
From
$1,702.02
Square D
110
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.