In my system (currently under heavy planning and waiting for Quattro II) I will have the three Quattro units mounted in the basement. However, if AC-1-out is going to loose power soon i would like to have a visual alarm in the living area. No guarantee that any network based notification will be working, there might not be always a device (smartphone, tablet) online to notify me.
So I thought I could use one of the programmable relais of the Quattros. In case AC-1-out is soon going down (maybe based on batt-level and AC-1-in down) I would like to close the relay which then closes a circuit which starts a LED flashlight mounted in the hallway where its good visible.
It should be fool-proof. So regardless why AC-1-out is loosing power, the flashligt should start.
If I use a 12V (20W) LED light, could the relay from the Quattro handle that?
And, would it be foolproof, regardless why AC-1-out loses power (e.g. overload, system failure) or should I use some external current sense approache on the phases?