I don't think auto relays are rated for 15A+.. You are going to have to find a relay rated at 30A or more. http://www.ebay.com/sch/i.html?_trksid=m570.l1313&_nkw=120v+30a+relay&_sacat=0&_from=R40
but again,will the contact switch terminals handle 120v ac.. ?thats my concern, im no electrician, but i mess with this stuff, and i just dont want something failing and having to explain to landlord why the house went poof
I don't think auto relays are rated for 15A+..
Sure there are, it's a pretty common relay application for controlling power window motors, seat motors, etc.
I suspect most 'automotive' relays are not rated for 120vac operation and unless they were I wouldn't use them as such. I was just responding to the statement: