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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.
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Part Number
PRICE
Manufacturer
Amperage
Voltage
NB111010
NB111010
Limited Stock
From
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American
10
120
NE113015
NE113015
In Stock
From
$3.58
American
15
120
NE113040
NE113040
In Stock
From
$45.00
Federal Pacific
40
120
NE113050
NE113050
In Stock
From
$39.96
Federal Pacific
50
120
NEF113020
NEF113020
In Stock
From
$10.11
American
20
120
NEF421015R
NEF421015R
In Stock
From
$42.12
Federal Pacific
15
480
NQ112015
NQ112015
In Stock
From
$33.73
Federal Pacific
15
120
NE233100NA
NE233100NA
In Stock
From
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American
100
240
NEF621070
NEF621070
In Stock
From
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Federal Pacific
70
600
NFJ434100STFJ-3
NFJ434100STFJ-3
In Stock
From
$1,887.41
Federal Pacific
100
480
115
115
Limited Stock
From
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Federal Pacific
15
120
NEF427125
NEF427125
Limited Stock
From
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Federal Pacific
125
480
135
135
Limited Stock
From
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Federal Pacific
35
120
2B225BC
2B225BC
Limited Stock
From
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American
225
240
3P80
3P80
Limited Stock
From
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American
80
240
NA330H
NA330H
Limited Stock
From
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American
30
240
NA3P45-FLAT-TOP
NA3P45-FLAT-TOP
Limited Stock
From
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American
45
240
NB231060
NB231060
Limited Stock
From
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American
60
240
NB231080
NB231080
Limited Stock
From
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Federal Pacific
80
240
NB350H
NB350H
Limited Stock
From
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Federal Pacific
50
240
NB360
NB360
Limited Stock
From
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American
60
240
NB390
NB390
Limited Stock
From
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American
90
240
NB3P25
NB3P25
Limited Stock
From
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American
25
240
130
130
Limited Stock
From
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Federal Pacific
30
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.