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Circuit Breaker

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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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Part Number	PRICE	Manufacturer	Amperage	Poles
NGB3B045B	In Stock From $472^.25	Siemens	45	3
NGB3B050B	In Stock From $333^.79	Siemens	50	3
NGB3B070B	In Stock From $304^.81	Siemens	70	3
NGB3B080B	In Stock From $386^.53	Siemens	80	3
NGB3B090B	In Stock From $288^.35	Siemens	90	3
NGB3B100B	In Stock From $439^.46	Siemens	100	3
NGB3K015B	In Stock From $766^.32	Siemens	15	3
NGB3K025B	In Stock From $359^.21	Siemens	25	3
NGB3K035B	In Stock From $556^.13	Siemens	35	3
NGB3K040B	In Stock From $425^.55	Siemens	40	3
NGB3K070B	In Stock From $838^.47	Siemens	70	3
NGB3K080B	In Stock From $540^.89	Siemens	80	3
NGB3K090B	In Stock From $786^.42	Siemens	90	3
NGB3K125B	In Stock From $1,366^.95	Siemens	125	3
NMG3B600L	In Stock From $5,519^.75	Siemens	600	3
NMG3B800L	In Stock From $10,086^.17	Siemens	800	3
NNG3B120	In Stock From $34,903^.47	Siemens	1200	3
NNG3B800	In Stock From $8,914^.93	Siemens	800	3
NXD63B120L	In Stock From $3,339^.18	Siemens	1200	3
PD63T120	In Stock From $1,828^.31	Siemens	-	3
Q21525CTNC	In Stock From $94^.00	Siemens	25	2
QA115AFCHH	In Stock From $131^.73	Siemens	15	1
QA115AFCWG	In Stock From $79^.81	Siemens	15	1
QE130	In Stock From $92^.54	Siemens	30	1

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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.

Learn More

The Basics of A Circuit Breaker

The Main Types Of Breaker Protections