How do I connect a relay to halogen lights with motion and dusk sensors?

Welcome!

I have halogen lights at the back of my house with built-in motion and twilight sensors (3 pieces of 120Watts each). They are connected on a separate electrical circuit. I would like to have information for the control panel that these halogens are switched on.
Unfortunately I don't have any cables for the control panel to run to the halogens, the only thing I can use is that they are on a separate electrical circuit.
Are there any relays that will short their NO/NC contact when the halogen circuit draws current? If so, which ones and how do I connect them?
You probably also have to take into account the fact that these halogens probably take some small current all the time, for the operation of the sensors.

adikas wrote:

Are there any relays that will short their NO/NC contact when the halogen circuit draws current? If so, what kind and how to connect them?

Priority relay or current relay.

I don't know much about relays. But I've read that the priority one disconnects the second output, as it were, when the first one exceeds the set current. I don't think it's very usable for a control panel input because of the 230V voltage.
Are there any with NC contacts?

Current transformer or scroll R 15.

i think I was thinking of something like this
http://www.przewodyelektryczne.com.pl/1011-przekaznik-pradowy-epp-619.html

It will be, just the price.

adikas wrote:

I think I was referring to something like this
http://www.przewodyelektryczne.com.pl/1011-przekaznik-pradowy-epp-619.html

Minimum switching current 0.6A, the 120W halopak draws slightly less, so you need to run two or three coils of wire through the relay channel.

Zbigniew 400 wrote:

or rewind R 15

This is a quite reasonable option, for rewinding get any version of R15 with an AC coil for any voltage.

You can use a reed switch, experimentally select the number of coils on it to switch and connect some LED or buzzer. I have also thought about this problem with the information about turning on the light and so if the thief does not escape from the light, his task is even easier . On the other hand with strong winds and some trees close by the light could be on all the time .