Automatic Changeover Relay
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Wiring Diagram
Supply 100 - 240 volts AC at coil point.
When there is no voltage at coil points then NC input supply will go to output and WAPDA will remain disconnected.
When there is voltage at coil points then NC will disconnected and WAPDA input supply will go to output.
You may supply coil supply either from UPS or from wifi or timer device to control the relay.
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