How can I wire 3 lights to 2 PIR sensors

[samjones04]

Hello,

Disclaimer: Not a qualified electrician but just doing some DIY as a hobby, I've wired up my own Fused Spur before so I know the basics.

I want to be able to wire up 3 20W Lights up to 2 PIR sensors on opposite sides of a fence. These must terminate to a standard UK plug socket due to it being at the end of a garden next to a standalone garage (don't mind adding a fuse if thats necessary).

Lights: 4Lite 20W Floodlight (Screwfix: 855KK)
Sensors: Zine DION PIR Sensor (Screwfix: 388FT)

Ive seen diagrams online but I would rather do it right the first time than live to regret it after making a mistake.

Would be nice to have an override switch inside the garage to either:
a) Stay on without using sensors
b) Completely off (disable sensors)
c) Sensors enabled

-- This isn't a priority if it would significantly complicate or increase the price --


Any advice would be appreciated.

 

[Avo Mk8]

This forum is not supposed to give step by step instructions, but I'll give a few pointers.

There are as you say quite a few wiring diagrams out there, and the one's I've seen are OK.

You might use 4 core, (L, Ls, N, E) or 3 core + E cable, between the 2 PIR's to connect them in parallel.
Most people seem to experience no problem putting PIR's in parallel, and more surprisingly no problem connecting L to Ls with a switch to make lights stay on, though some PIR's take flashing the on/off switch as the instruction for permanent on.
Then L, N & E between all the lights, and run them in parallel off the Ls switched live & N from the PIR's.

For permanent on, take the L and Ls from the PIR's to a switch.
For permanent off put a switch in the live feeding the whole lot, or use the switch at the socket!

 

[mainline]

This forum is not supposed to give step by step instructions, but I'll give a few pointers.

There are as you say quite a few wiring diagrams out there, and the one's I've seen are OK.

You might use 4 core, (L, Ls, N, E) or 3 core + E cable, between the 2 PIR's to connect them in parallel.
Most people seem to experience no problem putting PIR's in parallel, and more surprisingly no problem connecting L to Ls with a switch to make lights stay on, though some PIR's take flashing the on/off switch as the instruction for permanent on.
Then L, N & E between all the lights, and run them in parallel off the Ls switched live & N from the PIR's.

For permanent on, take the L and Ls from the PIR's to a switch.
For permanent off put a switch in the live feeding the whole lot, or use the switch at the socket!

That will work fine as long as the Pirs use relay switching, some don't.