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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
WLL3D340YA	Limited Stock From Get Price	Siemens	4000	3
WLL3D340YB	Limited Stock From Get Price	Siemens	4000	3
WLL3D340YC	Limited Stock From Get Price	Siemens	4000	3
WLL3D340YD	Limited Stock From Get Price	Siemens	4000	3
WLL3D340YE	Limited Stock From Get Price	Siemens	4000	3
WLL3D340YF	Limited Stock From Get Price	Siemens	4000	3
WLL3D340YG	Limited Stock From Get Price	Siemens	4000	3
WLL3D340YH	Limited Stock From Get Price	Siemens	4000	3
WLL3D340YJ	Limited Stock From Get Price	Siemens	4000	3
WLL3D340YK	Limited Stock From Get Price	Siemens	4000	3
WLL3D340YL	Limited Stock From Get Price	Siemens	4000	3
WLL3D340YN	Limited Stock From Get Price	Siemens	4000	3
WLL3D340YP	Limited Stock From Get Price	Siemens	4000	3
WLL3D340YQ	Limited Stock From Get Price	Siemens	4000	3
WLL3D340YR	Limited Stock From Get Price	Siemens	4000	3
WLL3D340YT	Limited Stock From Get Price	Siemens	4000	3
WLL3D340YU	Limited Stock From Get Price	Siemens	4000	3
WLL3D340YW	Limited Stock From Get Price	Siemens	4000	3
WLL3D340Z	Limited Stock From Get Price	Siemens	4000	3
WLL3D340ZA	Limited Stock From Get Price	Siemens	4000	3
WLL3D340ZB	Limited Stock From Get Price	Siemens	4000	3
WLL3D340ZC	Limited Stock From Get Price	Siemens	4000	3
WLL3D340ZD	Limited Stock From Get Price	Siemens	4000	3
WLL3D340ZE	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