Regards.
There is a mechanical relay in the device printed circuit board that turns on/off the lights in the room. It shows "No neutral wire needed" (But there is a wire for ground that needs connection)
ACphase------------------A-------------relaycontacts--------------B-----------------Lightbulb---------------------neutral.
Ground------------------------------------------G
The red portion is in the device that mounts in a wall. When the lamp in the room is on, between A and B there is no voltage to run the microcontrolled sensing circuitry. When the lamp in the room is off; there is plenty of voltage needed to energize the sensing and operation circuitry.
Is ground being used as a supply conductor ? What happens if there is a GFI ?
There is a mechanical relay in the device printed circuit board that turns on/off the lights in the room. It shows "No neutral wire needed" (But there is a wire for ground that needs connection)
ACphase------------------A-------------relaycontacts--------------B-----------------Lightbulb---------------------neutral.
Ground------------------------------------------G
The red portion is in the device that mounts in a wall. When the lamp in the room is on, between A and B there is no voltage to run the microcontrolled sensing circuitry. When the lamp in the room is off; there is plenty of voltage needed to energize the sensing and operation circuitry.
Is ground being used as a supply conductor ? What happens if there is a GFI ?