I'm trying to use a relay to control my house lights with a electronic circuit. I'm familiar with 5V DC circuits, but I've never played with AC before. My relay has three connections, which I assume are ground and the two wires that will be connected when the thing is on.
However, I can't find any datasheet or information about it, my only clue are these symbols:
Using pure logic I would guess that the "bottom" (in the picture) and the middle one are the connectors, and that the other ("top" one) is the ground. So when it is on the relay connects bottom to middle, and when it is off, connects the top to middle. Is that it?
And one more thing: my house is not grounded (yeah...). So is it safe to not connect anything in the ground terminal (leave it unplugged), or for this specific case I'll have to use some quirk to make it work?