Fitting PIR to existing garage light

[Deano2204]

Apologies if this has been answered before but I searched and couldnt find anything exactly as I have it and want to be 100% sure.

I've just bought a pir sensor from Homebase to install on my garage light. Cleverly, I've already lost the instructions.

What I have is a strip light with the feed from the FCU directly into it and seemingly a separate wire to/from the switch. The pir has a standard connector block inside for LNE.

I'd like to be able to override the PIR but not sure if a quick on/off would do this (given I've stupidly lost he instructions).

Could someone point me in the direction of a diagram showing me how to wire this up. I would have thought simply interrupting the feed from the FCU would be enough but I'm old enough to have learnt not to assume

Thanks in advance for the help.

 

[bernardgreen]

The PIR should have Live In, Neutral and Switched Live and Earth and to have full over ride of ON and OFF can be wired as follows.

PIR with overrides

• bernardgreen
• 18 Mar 2011
• 20

Using two single pole switches to provide overrides for a basic PIR

If it only has Live Neutral and Earth then it is not a very useful PIR unless it has a built in lamp that it controls.

 

[Deano2204]

Thanks for the very helpful reply.

Thing is, I think I have a much more simple light than usual. It's a strip light in the garage with the feed from the fuse box of just L,N & E and then a separate wire of just L&N going to a single switch.

The PIR does indeed have a L1, L & N but no earth.

Reading the box it says it has an override, so I suppose it's a case of installing it and relying on that override so I don't have to wave my arms around every few minutes.

Im still a bit confused as to where I should put the sensor online with now.

Cheers

 

[gman76]

Hi Deano,

The run to the switch will be L & switched L, not N. The black or blue conductor should have a red/brown sleeve at either end to denote this.

The L terminal in the light fitting should be connected to the sw L return from the switch, remove this wire & connect to L term in PIR, connect N term to neutral & L1 to L of light fitting.

I'd use a length of 3 core + earth for this, connect the earth at the junction end & fit in an extra terminal block @ PIR end.

Then I'd go to Homebase, find the fitting I'd purchased, pluck out the instructions & take a camera phone shot of the overide part.

 

[Deano2204]

Thanks again for the reply. Thats my Saturday taken care of

Cheers