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
NE113020
NE113020
In Stock
From
$25.51
Federal Pacific
20
120
NEF217020
NEF217020
In Stock
From
$26.74
Federal Pacific
20
277
NEF431020
NEF431020
In Stock
From
$65.80
American
20
480
NEF431030
NEF431030
In Stock
From
$244.52
Federal Pacific
30
480
NEF431050
NEF431050
In Stock
From
$400.38
Federal Pacific
50
480
NEF431100
NEF431100
In Stock
From
$360.55
Federal Pacific
100
480
NEF433015R
NEF433015R
In Stock
From
$235.67
Federal Pacific
15
480
NEF433060
NEF433060
In Stock
From
$1,035.59
American
60
480
NEG631030
NEG631030
In Stock
From
$8.50
Federal Pacific
30
600
NEG631040
NEG631040
In Stock
From
$275.81
Federal Pacific
40
600
NES2220
NES2220
In Stock
From
$41.06
Federal Pacific
20
240
NF631070
NF631070
In Stock
From
$502.25
Federal Pacific
70
600
NF631090
NF631090
In Stock
From
$217.15
Federal Pacific
90
600
NFJ631150
NFJ631150
In Stock
From
$510.98
Federal Pacific
150
600
NFS4350
NFS4350
In Stock
From
$39.68
Federal Pacific
50
240
NJ631225
NJ631225
In Stock
From
$397.84
Federal Pacific
225
600
NM032200
NM032200
In Stock
From
$867.26
Federal Pacific
200
600
NN631120
NN631120
In Stock
From
$4,789.14
Federal Pacific
1200
600
NN633100
NN633100
In Stock
From
$5,659.28
Federal Pacific
1000
600
UBIF050N
UBIF050N
In Stock
From
$28.23
Federal Pacific
50
240
UBIF40N
UBIF40N
In Stock
From
$28.26
Connecticut Electric
40
240
UBIF50N
UBIF50N
In Stock
From
$44.72
Connecticut Electric
50
240
XF632020
XF632020
In Stock
From
$1,155.93
Federal Pacific
20
600
XF632100
XF632100
In Stock
From
$224.30
Federal Pacific
100
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.