Replacing pull switch with PIR Motion Sensor

BrennaBoy · Dec 17, 2018

Hi,

I am trying to replace a pull switch with a PIR Motion Sensor in a cupboard/wardrobe, but it does not seem to be working.

The pull switch is connected to a cable from the ceiling, where both wires coming from the cable are brown. I this normal?

I thought that it would just be a case of putting the wire that was connected to COM in the pull switch to the Lin (Live In) on the PIR and then the wire that was connected to L2 in the pull switch to the Lout (Live Out) on the PIR. The PIR also has two N (Neutral) connections, but seeing as there are no Neutral connections in the pull switch, these are not needed.

Would anyone be kind enough to lend me their experience as to what might be going on and if this PIR setup is even possible?

Many thanks all in advance!

BrennaBoy.

Ian1981 · Dec 17, 2018

The PIR needs a peminant live, switch live out to the light(s) and a neutral.

BrennaBoy · Dec 17, 2018

Ahhh, I see, that is a shame. I guess a normal 1 gang switch or the existing pull switch it is then!

Thanks for the reply Ian1981.

Taylortwocities · Dec 17, 2018

Or a PIR that does not require a neutral. They are available!

PS. What's to stop you running a neutral to the switch? Do you have access to run another cable/replace the existing cable with 3 core 7 earth.

PPS Why have the PIR where the switch is? If you look at the light itself, you'll probably find all of the connections that you need. locate the PIR near the light, job done.