Motion Sensor Switch Output - Electrical - DIY Chatroom Home Improvement Forum

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Old 08-17-2012, 10:29 PM   #1
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motion sensor switch output

Hi all. just a quick question for you. I've been replacing all my mother and fathers light switches with new motion sensor switches. These are great, but I've come across a small issue with them. Most likely just my OCD kicking in hard core, but I have 120V AC on the LINE line, and when switched by motion my LOAD line is only showing 107V ac. However, when switched from AUTO to ON they read 120V AC on the LOAD line..... this is perplexing to me. I've tried 2 different manufacturers (Levition, and GE) and they are both doing the exact same thing. do these sensors use so much power to "throw" the switch?

The reason I'm asking is because I did the restrooms today and in all 3 I wired the fan/light with the vanity lights to the motion switch. everything works, however when you put it to ON the evacuation fan speeds up noticably. The switches are made to handle the load, but it seems odd to me.

Thanks for any info, and opinions, Joe


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motion , photoelectric sensor , sensor

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