Uploaded February 2021 | Updated September 2026, 3 weeks ago

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What Is a Relay?

A relay is an electrically operated switch used to control circuits and automate electrical functions in industrial systems.

In this video, Radwell explains how relays work and their role in managing:
- Electrical loads
- Signal switching
- System control

*Key topics include:*
- Relay operating principles
- Circuit control and switching
- Common industrial applications

Relays can help support reliable circuit operation and efficient system performance.

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