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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
NJL632600
NJL632600
In Stock
From
$2,575.09
Federal Pacific
600
600
NEF423030
NEF423030
In Stock
From
$173.42
Federal Pacific
30
480
020
020
In Stock
From
$22.33
Federal Pacific
20
120
025
025
Limited Stock
From
Get Price
Federal Pacific
25
120
035
035
In Stock
From
$85.57
Federal Pacific
35
120
115
115
In Stock
From
$2.40
Federal Pacific
15
120
15
15
In Stock
From
$10.06
Federal Pacific
15
120
220
220
In Stock
From
$67.67
American
20
240
230
230
In Stock
From
$2,024.04
Federal Pacific
30
240
250
250
In Stock
From
$38.24
Federal Pacific
50
240
2B100
2B100
In Stock
From
$133.76
Federal Pacific
100
240
2B125
2B125
In Stock
From
$430.40
Federal Pacific
125
240
2P100
2P100
In Stock
From
$464.70
Federal Pacific
100
240
2P100NA
2P100NA
In Stock
From
$218.42
American
100
240
2P125
2P125
In Stock
From
$347.24
Federal Pacific
125
240
2P30
2P30
In Stock
From
$119.42
Federal Pacific
30
240
2P40
2P40
In Stock
From
$101.45
American
40
240
2P70
2P70
In Stock
From
$192.00
American
70
240
2P90
2P90
In Stock
From
$770.11
Federal Pacific
90
240
3P20
3P20
In Stock
From
$175.02
Federal Pacific
20
240
3P40
3P40
In Stock
From
$192.56
American
40
240
3P50
3P50
In Stock
From
$233.84
Federal Pacific
50
240
3P70
3P70
In Stock
From
$743.35
Federal Pacific
70
240
40
40
In Stock
From
$17.37
Federal Pacific
40
120
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.