Sorry on the volts. As you can see I'm not a rocket scientist. Folks, it really is a very simple install. I now have a very plain plate that I made which doesn't allow you to energize the panel until you shut the main breaker off. Totally legit and to code.
Check the photo out on this website and you'll see how simple they are.
http://www.interlockkit.com/?gclid=C...FUKd4AodnmQAmg