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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
NEF433030
NEF433030
In Stock
From
$188.90
Federal Pacific
30
480
NEF433100
NEF433100
In Stock
From
$328.39
American
100
480
NEF435015
NEF435015
In Stock
From
$156.82
American
15
480
NEF435100
NEF435100
In Stock
From
$463.99
Federal Pacific
100
480
NEF437060
NEF437060
In Stock
From
$1,060.92
Federal Pacific
60
480
NEF437100
NEF437100
In Stock
From
$327.76
Federal Pacific
100
480
NEF631060
NEF631060
In Stock
From
$236.41
American
60
600
NEF631070
NEF631070
In Stock
From
$545.33
Federal Pacific
70
600
NEG1B020L
NEG1B020L
In Stock
From
$491.02
Siemens
20
600
NEG3B015L
NEG3B015L
In Stock
From
$644.11
Siemens
15
600
NEG3B100
NEG3B100
In Stock
From
$128.62
Siemens
100
600
NEG3B100L
NEG3B100L
In Stock
From
$718.07
Siemens
100
600
NEJ223150
NEJ223150
In Stock
From
$485.03
Federal Pacific
150
240
NEJ223225
NEJ223225
In Stock
From
$530.89
Federal Pacific
225
240
NEJ233175
NEJ233175
In Stock
From
$281.70
Federal Pacific
175
240
NEJ233200
NEJ233200
In Stock
From
$819.40
Federal Pacific
200
240
NEJ237125
NEJ237125
In Stock
From
$377.08
Federal Pacific
125
240
NEJ237200
NEJ237200
In Stock
From
$955.24
Federal Pacific
200
240
NEJH233125
NEJH233125
In Stock
From
$1,219.67
Federal Pacific
125
240
NEL1236LIG
NEL1236LIG
In Stock
From
$10,888.40
Square D
1200
600
NEL361000LSG
NEL361000LSG
In Stock
From
$8,612.36
Square D
1000
600
NEL361200LI
NEL361200LI
In Stock
From
$9,127.26
Square D
1200
600
NEL361200LIG
NEL361200LIG
In Stock
From
$10,157.40
Square D
1200
600
NEL361200LS
NEL361200LS
In Stock
From
$9,332.92
Square D
1200
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.