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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
WLL3F340NG	Limited Stock From Get Price	Siemens	4000	3
WLL3F340NH	Limited Stock From Get Price	Siemens	4000	3
WLL3F340NJ	Limited Stock From Get Price	Siemens	4000	3
WLL3F340NK	Limited Stock From Get Price	Siemens	4000	3
WLL3F340NL	Limited Stock From Get Price	Siemens	4000	3
WLL3F340NN	Limited Stock From Get Price	Siemens	4000	3
WLL3F340NP	Limited Stock From Get Price	Siemens	4000	3
WLL3F340NQ	Limited Stock From Get Price	Siemens	4000	3
WLL3F340NR	Limited Stock From Get Price	Siemens	4000	3
WLL3F340NT	Limited Stock From Get Price	Siemens	4000	3
WLL3F340NU	Limited Stock From Get Price	Siemens	4000	3
WLL3F340NW	Limited Stock From Get Price	Siemens	4000	3
WLL3F340NY	Limited Stock From Get Price	Siemens	4000	3
WLL3F340P	Limited Stock From Get Price	Siemens	4000	3
WLL3F340PA	Limited Stock From Get Price	Siemens	4000	3
WLL3F340PB	Limited Stock From Get Price	Siemens	4000	3
WLL3F340PC	Limited Stock From Get Price	Siemens	4000	3
WLL3F340PD	Limited Stock From Get Price	Siemens	4000	3
WLL3F340PE	Limited Stock From Get Price	Siemens	4000	3
WLL3F340PF	Limited Stock From Get Price	Siemens	4000	3
WLL3F340PG	Limited Stock From Get Price	Siemens	4000	3
WLL3F340PH	Limited Stock From Get Price	Siemens	4000	3
WLL3F340PJ	Limited Stock From Get Price	Siemens	4000	3
WLL3F340PK	Limited Stock From Get Price	Siemens	4000	3

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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