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Relay: The Silent Commander of Industrial Control
2026-02-13
Relay: The Silent Commander of Industrial Control What is a relay and why has it survived for over 100 years? A relay is an electrically operated switch that uses a small control current to open or close a much larger load current. Its century-long dominance comes from three irreplaceable virtues: simplicity, isolation, and reliability. In an age of semiconductors, no electronic component can matc...
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