Does a motion sensor switch need a neutral?
Also, do occupancy sensors need a neutral?
Occupancy sensors require standby power to operate the sensor when the load is "off". To do that it needs a path to Neutral; some models require Neutral, others require Ground (which is used to draw power, but the current is less than 1ma is considered harmless).
Similarly, how do you wire a motion sensor switch? Table of Contents
- Step 1: Turn Off the Power.
- Step 2: Test the Wires, and Remove the Switch.
- Step 3: Cut the Wires.
- Step 4: Strip the Black and White Wires.
- Step 5: Connect the Wires to the New Switch.
- Step 6: Tuck Wires Into the Box, and Secure the Switch.
- Step 7: Customize the Controls, and Reinstall the Wall-Plate.
People also ask, does a motion sensor light need a switch?
Again, one must check the manufacturer's instructions for motion-sensor type lighting. If the manufacturer's installation instructions require a switch, then it must be installed. Allowing the motion sensor without the switch would be a violation of NEC Article 110.3(B). Usually those motion sensors require a switch.
What happens if you do not connect the ground wire?
In the absence of the ground wire, shock hazard conditions will often not cause the breaker to trip unless the circuit has a ground fault interrupter in it. If the case is grounded, a high current should flow in the appliance ground wire and trip the breaker.