PS : most of the times i have problem to embed pictures from my google drive. ''insert image'' seems cant embed url link from google drive.. is any special code to add to my url links in order to appeared right in my posts ?
So the relay is energised by the mains? I didn't even know such relays existed, we live and learn.
You have never come across to relays that use 12 , 24, 48, 110, 230 v AC for the coil ?
... but then I've never needed an AC relay for anything ever in 55y of playing with electrical stuff, so it probably never occurred to me that such a thing would exist.
about DC voltage i am not sure if it is allowed, i will have to check it..
That, to me, is a very odd statement. It makes me wonder if there's confusion over the safety of AC vs DC. And, that would be valid, were we talking about similar voltages. But, I suggested 24V [or even 48V, which is on the edge of "safe" voltages].24VDC is certainly going to be far safer than 120VAC [or above].