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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
NB231020VF
NB231020VF
Limited Stock
From
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Federal Pacific
20
240
NB231025
NB231025
Limited Stock
From
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American
25
240
NB231025H
NB231025H
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From
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Federal Pacific
25
240
NB231025VF
NB231025VF
Limited Stock
From
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American
25
240
NB231030H
NB231030H
Limited Stock
From
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Federal Pacific
30
240
NB231030VF
NB231030VF
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From
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American
30
240
NB231035
NB231035
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Federal Pacific
35
240
NB231035H
NB231035H
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From
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American
35
240
NB231035VF
NB231035VF
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From
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American
35
240
NB231040
NB231040
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American
40
240
NB231040H
NB231040H
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From
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Federal Pacific
40
240
NB231045
NB231045
Limited Stock
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Federal Pacific
45
240
NB231045H
NB231045H
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From
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Federal Pacific
45
240
NB231050H
NB231050H
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From
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Federal Pacific
50
240
NB231060
NB231060
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American
60
240
NB231060H
NB231060H
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From
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American
60
240
NB231070
NB231070
Limited Stock
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American
70
240
NB231070H
NB231070H
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From
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American
70
240
NB231080
NB231080
Limited Stock
From
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Federal Pacific
80
240
NB231080H
NB231080H
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From
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Federal Pacific
80
240
NB231090H
NB231090H
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From
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Federal Pacific
90
240
NB231100H
NB231100H
Limited Stock
From
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Federal Pacific
100
240
NB232015H
NB232015H
Limited Stock
From
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Federal Pacific
15
240
NB232025
NB232025
Limited Stock
From
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American
25
240
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.