1. Home / 
  2. All Categories / 
  3. Circuit Breaker / 
  4. Molded Case Circuit Breaker

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
NEF421070
NEF421070
In Stock
From
$191.18
Federal Pacific
70
480
NEF421090
NEF421090
In Stock
From
$296.10
American
90
480
NEF425015
NEF425015
In Stock
From
$300.36
American
15
480
NEF425020
NEF425020
In Stock
From
$183.92
Federal Pacific
20
480
NEF425025
NEF425025
In Stock
From
$471.89
Federal Pacific
25
480
NEF425030
NEF425030
In Stock
From
$178.86
Federal Pacific
30
480
NEF425035
NEF425035
In Stock
From
$209.22
American
35
480
NEF425040
NEF425040
In Stock
From
$217.00
Federal Pacific
40
480
NEF425045
NEF425045
In Stock
From
$421.61
Federal Pacific
45
480
NEF425050
NEF425050
In Stock
From
$203.01
Federal Pacific
50
480
NEF425060NA
NEF425060NA
In Stock
From
$109.43
American
100
480
NEF425070
NEF425070
In Stock
From
$290.68
Federal Pacific
70
480
NEF425080
NEF425080
In Stock
From
$415.94
American
80
480
NEF425090
NEF425090
In Stock
From
$379.62
Federal Pacific
90
480
NEF425100
NEF425100
In Stock
From
$160.40
Federal Pacific
100
480
NEF425100NA
NEF425100NA
In Stock
From
$149.14
American
100
480
NEF4270015
NEF4270015
In Stock
From
$164.10
American
15
480
NEF427015
NEF427015
In Stock
From
$77.75
American
15
480
NEF427020
NEF427020
In Stock
From
$358.40
American
20
480
NEF427025
NEF427025
In Stock
From
$395.26
Federal Pacific
25
480
NEF427030
NEF427030
In Stock
From
$85.46
Federal Pacific
30
480
NEF427035
NEF427035
In Stock
From
$116.80
American
35
480
NEF427045
NEF427045
In Stock
From
$423.87
Federal Pacific
45
480
NEF427050
NEF427050
In Stock
From
$298.62
Federal Pacific
50
480
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.