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Relays are electrically operated switches used to open and close circuits by receiving electrical signals from outside sources. Today’s solid-state relays use electronic components to control the circuit without physical contact. Specifically, relays control high-voltage circuits with the help of low-voltage signals and high-current circuits with the help of low-current signals.

The parts are commonly used in control panels, manufacturing, and building automation. Symmetry offers RoHS-compliant, PCB mount, solid-state relays from Semtech, a leading manufacturer.

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