Switch and flood light issue

[Hyperway]

Hi I have two sets of flood lights that are controlled by two independent sensors. There is also an internal light switch that is used to turn on all the lights if needed. The light switch connects to both lives of the sensor terminal blocks. The issue is when one flood light sensor comes on it powers the other and is using the switch as the source. I believe some sort of diode is required to prevent one sensor powering the other lights. Looking for advice on what is required. See file for diagram.

 

[flameport]

Either two switches, one for each set, or a double pole switch using one pole for each set of lights.

A diode is no use, lights use AC.

 

[Hyperway]

Hi, thanks for your advice, unfortunately the switch is installed in the wall with cable (t&e) running to the loft where the wiring circuit is. Was hoping there was a way of just preventing the flow back to the switch terminal block from the sensors.

 

[EFLImpudence]

You will need to fit a relay where the junction box is.

 

[Hyperway]

Any advice on which relay would be suitable?

 

[EFLImpudence]

230V and 6A or more, of course.

Other than that virtually any will do.
You only need a single pole one for one of the lights to separate the two light feeds when off.

 

[Hyperway]

Thank you, so this one would be suitable:

https://www.eibabo.uk/finder/installation-relay-230vac-switching-relay-for-sockets-13.31.8.230.4300-eb15709196?

 

[EFLImpudence]

Wrong. My mistake.

Double pole required.

 

[Hyperway]

Thank you

 

[EFLImpudence]

Wrong.

 

[SUNRAY]

View attachment 264011

NO, no, no. it has to be a double pole relay.
Excuse my sketch but hopefully it gives the required connexion detail:

 

[EFLImpudence]

Why?

 

[SimonH2]

Apply power to the "light" connection going off to the right (terminal A1) - i.e. the sensor on that light has triggered. What does the relay do ?

 

[EFLImpudence]

Ah, sorry. Silly me.

Will amend my posts.

 

[EFLImpudence]

Thank you both.

Sorry Hyperway.