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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
NE223050
NE223050
In Stock
From
$35.99
American
50
240
NE231015
NE231015
In Stock
From
$12.26
American
15
240
NE231025
NE231025
Limited Stock
From
Get Price
Federal Pacific
25
240
NE231040
NE231040
In Stock
From
$178.54
American
40
240
NE231070
NE231070
In Stock
From
$200.20
American
70
240
NE233025
NE233025
In Stock
From
$14.98
American
25
240
NE233040
NE233040
In Stock
From
$102.08
American
40
240
NE233060
NE233060
In Stock
From
$272.96
Federal Pacific
60
240
NE233070
NE233070
In Stock
From
$238.99
American
70
240
NE233080
NE233080
In Stock
From
$5.70
Federal Pacific
80
240
NE233090
NE233090
In Stock
From
$111.00
Federal Pacific
90
240
NEF421030R
NEF421030R
In Stock
From
$79.56
Federal Pacific
30
480
NEF421090R
NEF421090R
In Stock
From
$20.93
American
90
480
NEF423020
NEF423020
In Stock
From
$65.10
American
20
480
NEF423040
NEF423040
In Stock
From
$72.72
American
40
480
NEF433010
NEF433010
In Stock
From
$308.75
American
10
480
NFJ631070R
NFJ631070R
In Stock
From
$753.36
Federal Pacific
70
600
NFJ631175
NFJ631175
In Stock
From
$247.55
American
175
600
NFJ631175R
NFJ631175R
In Stock
From
$260.79
Federal Pacific
175
600
NFJ631225
NFJ631225
In Stock
From
$838.62
American
225
600
NFJ631225R
NFJ631225R
In Stock
From
$326.25
Federal Pacific
225
600
NJL621125
NJL621125
In Stock
From
$2,476.25
American
125
600
NJL621250
NJL621250
In Stock
From
$4.05
Federal Pacific
250
600
NJL621400
NJL621400
In Stock
From
$34.89
Federal Pacific
400
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.