I'm working on a project where a switch needs to go between two very high loads, that are about 80 amps @ 12 volts. I considered using a relay, but the problem there is that (I think) the relay consumes power while engaged, and may overheat over time. That's a problem, since the switch will be engaged for weeks at a time.
I'm wondering if anyone has any advice for a way to switch between two very high loads?
Thanks for any advice.