I am currently creating a smart thermostat for my home, and am thinking of maybe doing a small production run to sell.
Its a 24VAC system, which I measured about 30mA on the white heat wire, give or take.
The relay I used is more than capable rated at 900mA, but just to be safe I want to know what the maximum current I can expect individually on the Heat/Cool/Fan wires, for all other systems out there in the wild.
I also plan to revise the board with relays with a smaller package to help slim down the enclosure, so really I'm trying to figure out how low can I reasonably go.