Ok thanks I went ahead and purchase 2 I also bought a bunch of transistors and resistors to build an AC detect circuit as a plan B. I really appreciate all the help. I was struggling a bit with how to go about it. If they would have built a status light into the 200 amp breaker to let you know if voltage is present this could have all been avoided ... lol just ranting. I am still a little surprised that I could not find anything on the internet dealing with this.It should work fine either way, you just may need a few more turns of wire if it has the resistor.