Relays and fuses

Thanks for the responses.

But, I guess I am a little slow. What I thought was a relay in the package for my fan switch kit is actually the thermostat. In the description on Summit, it says "relay included: Yes", so looking at the stuff in the bag, I thought it was the relay. Apparently it doesn't come with one? The thermostat kit is a Hayden 3653

http://www.summitracing.com/parts/HDA-3653/

What I have is a 7 blade radiator fan with a schroud, but the fan doesn't really cover the lower left quadrant of the radiator, so I thought I would mount a 10" "pusher" on the front of the radiator on the lower left quadrant. The reason: my car seems to run cool enough, but the weather has been cool. One day a lane was closed, warm day (about 72 degrees), stop and go traffic, and the car got a little hot (about 200 degrees). I have a 25X16 Aluminum 2 core radiator and a 180 degree thermostat. 408 small block, only has about 200 miles on it. Has some problems at 4500/5000 rpms, but that will have to be in another post (otherwise, runs like a champ)

Anyway, the 10" fan pulls 6.7 amps and is rated at 1250 CFM. So, do I need a relay? It doesn't show one in the directions of the thermostat/switch kit. Does the thermostat work as a relay? BTW, I was planning on hooking this up to the starter relay, but should I hook it up to the alternator instead?