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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
SJD-2SS-600NA
SJD-2SS-600NA
In Stock
From
$1,343.57
Challenger
600
600
SJD-3SS-400TF
SJD-3SS-400TF
In Stock
From
$219.74
Challenger
400
600
SJD-3SS-600NA
SJD-3SS-600NA
In Stock
From
$3,594.00
Challenger
600
600
SKM3C800
SKM3C800
In Stock
From
$756.45
Challenger
800
600
SKM3F1200
SKM3F1200
In Stock
From
$1,809.67
Challenger
1200
600
CH1020
CH1020
In Stock
From
$42.43
Challenger
20
277
CH3045
CH3045
In Stock
From
$86.59
Challenger
-
480
CD3125
CD3125
In Stock
From
$372.95
Challenger
125
240
CD3150
CD3150
In Stock
From
$384.62
Challenger
150
240
CD3200
CD3200
In Stock
From
$679.97
Challenger
200
240
CDK2300
CDK2300
In Stock
From
$654.88
Challenger
300
240
CDK2400
CDK2400
In Stock
From
$321.36
Challenger
400
240
CDK3250
CDK3250
In Stock
From
$1,363.22
Challenger
250
240
CDK3300
CDK3300
In Stock
From
$1,435.31
Challenger
300
240
CDK3350
CDK3350
In Stock
From
$1,952.75
Challenger
350
240
CDK3400
CDK3400
In Stock
From
$1,623.26
Challenger
400
240
CDK3400W
CDK3400W
In Stock
From
$927.41
Challenger
400
240
CF2030L
CF2030L
Limited Stock
From
Get Price
Challenger
30
600
CF2080
CF2080
In Stock
From
$1.10
Challenger
80
600
CF3015L
CF3015L
In Stock
From
$347.00
Challenger
15
600
CF3020L
CF3020L
In Stock
From
$301.44
Challenger
20
600
CF3040L
CF3040L
In Stock
From
$14.44
Challenger
40
600
CF3050L
CF3050L
In Stock
From
Get Price
Challenger
50
600
CF3060L
CF3060L
In Stock
From
$183.05
Challenger
60
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.