![]() ![]() If that happens then you should either move the lighting to a different circuit or (generally much simpler) pigtail the lighting to the LINE side of the receptacle instead of daisy-chaining off the LOAD side. ![]() They can be on GFCI, and if so then a switch like this might be detected as a ground fault. MS-OPS5MH-WH Dimmer Sensor Dimmer and sensor in one. Use in spaces with one or more switches like hallways, garages, or bathrooms. MS-OPS2H-WH Most Versatile Motion Sensor Switch Hands-free lighting and fans. Great for laundry rooms, closets and more. Beware of GFCIĪs I understand it (pros can chime in, of course), lighting circuits in areas that require GFCI for receptacles (bathroom, kitchen, laundry room, etc.) do NOT need to be on GFCI. Motion Sensor Switch Hands-free lighting. A classic example of dumbing down instructions too far, raising more questions instead of making things easier. But they could have made it totally foolproof by being upfront in the instructions about how it uses the wires. This actually makes for a very simple and almost foolproof installation. Provided your box really is properly grounded, connect both grounds (green & bare) to the box, connect hot to one black, switched hot to the other black, and you're done. It might put it below the normal threshold of a GFCI, but I wouldn't count on it. While using ground in place of neutral is not normally permitted, it is still allowed within certain limitations, and it avoids the problem of either (a) requiring a neutral in the switch box which many boxes simply don't have or (b) running a small amount of current through the switched line when off, which works fine on incandescent bulbs but on LEDs will often result in either flashing lights or a very low constant glow. That puts in the relatively safe range as far as current running over the ground wire. According to Q&A on, the switch uses < 1 watt when "off". The green ground is NOT for safety but rather in place of neutral for the motion sensor power. Device will not function if it is not grounded. If no ground is available, consult an electrician. Both bare and green ground wires are required to connect to ground.The instructions indicate this is by using ground: But the switch has to get power from somewhere to run the motion sensor. However, the marketing information (and the installation by omission) makes it clear that no neutral is required. It shows the two black wires but does not have any indication as far as which one goes to hot vs. Unfortunately, the Installation Guide doesn't say much. ![]()
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