Bathroom pir light

[matlob]

Hi, not sure is this is doable but I have a bathroom with three downlights and want one to be on pir?

Currently
Three downlights operated by a wall switch (they all come on and off together)

What I want
Middle downlight to be controlled via pir when the switch is off. (walk in room it comes on and goes off after x mins controlled via pir)
And then when the switch is on all lights to remain on.


I know I need perm live the the middle (and could just control that via the pir independently) but not sure if keeping them all on is possible when the light switch is on as don't want the middle one to time out if the others are on

Thanks in advance for any help

 

[ericmark]

Easy way is to use DC. Diodes will allow that with ease. But will AC looking at relays. DC lamps here

 

[flameport]

PIR connected to one of the downlights, the PIR will need permanent (unswitched) power, light connected to the switched output of the PIR.

Double pole switch:
one pole for the other lights same as they are now
one pole for the centre light, connect to the L and SL terminals of the PIR so that light is always on if the others are on.

 

[matlob]

Thanks all
Think I've just got a single pole switch but will take a look at that option and how to wire it up. May just have to go with an independent pir light
Thanks

 

[mikehammer69]

Thanks all
Think I've just got a single pole switch but will take a look at that option and how to wire it up. May just have to go with an independent pir light
Thanks

The DP switch is a nice touch

If you have sufficient on-time for the pir and correct siting ,it'll probably do instead