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Circuit Breaker

For power distribution and electrical protection systems, circuit breakers are among the most critical components for safeguarding equipment, personnel, and facilities from electrical overloads and short circuits. Circuit breakers automatically interrupt electrical current flow when abnormal conditions are detected, protecting circuits from damage while allowing manual reset and continued operation. Electrical.com carries an extensive selection of 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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NLG3E400B
NLG3E400B
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Siemens
400
3
NLG3E400L
NLG3E400L
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NLG3E600
NLG3E600
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600
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NLG3E600B
NLG3E600B
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600
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NLG3E600L
NLG3E600L
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Siemens
600
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NLG3N400
NLG3N400
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400
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NLG3N400B
NLG3N400B
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Siemens
400
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NLG3N400L
NLG3N400L
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400
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NLG3N600
NLG3N600
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600
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NLG3N600B
NLG3N600B
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600
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NLG3N600L
NLG3N600L
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Siemens
600
3
NLG3P400
NLG3P400
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Siemens
400
3
NLG3P400B
NLG3P400B
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Siemens
400
3
NLG3P400L
NLG3P400L
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Siemens
400
3
NLG3P600
NLG3P600
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Siemens
600
3
NLG3P600B
NLG3P600B
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Siemens
600
3
NLG3P600L
NLG3P600L
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Siemens
600
3
NLG3U400
NLG3U400
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Siemens
400
3
NLG3U400B
NLG3U400B
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Siemens
400
3
NLG3U400L
NLG3U400L
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Siemens
400
3
NLG3U600
NLG3U600
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Siemens
600
3
NLG3U600B
NLG3U600B
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Siemens
600
3
NLG3U600L
NLG3U600L
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Siemens
600
3
NLG3X400
NLG3X400
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Siemens
400
3
Popular Circuit Breaker Manufacturers

Electrical.com stocks the largest inventory of circuit breakers in the world, with over 1 million square feet of new, used, surplus, and re-certified circuit protection equipment available for immediate shipment. From residential to industrial applications, across all voltage and amperage ratings, we have what you need when others say no. Our comprehensive circuit breaker inventory spans all voltage classes, amperage ratings, and pole configurations 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 circuit breakers serve critical applications across manufacturing facilities, commercial buildings, data centers, healthcare facilities, utilities and power generation, industrial plants, residential construction, telecommunications infrastructure, and process control installations.


Whether you're maintaining legacy equipment with obsolete circuit breaker models or sourcing current production components for new electrical systems, our 40+ warehouse locations across the US and Canada ensure rapid delivery to minimize your downtime and keep your operations running. Need 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.

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