Quote from: MarkAz on January 25, 2018, 06:25:19 PM

Quote from: clyjr on January 25, 2018, 06:01:49 PM

Are you US based? How do you wire up the Sonoff Pow on US 220v? I couldn't find any 220 wiring instructions...

Yeah, I'm US based and I run it on both 240v and 208v systems no problem - in either case, there's still only 3 wires (assuming you're using C13 or C19 plugs, which you probably are). The Sonoff has the labels L (line), N (neutral) and E (earth) if I remember correctly - so it should be the same for your plug wiring, the only difference is that they call earth -> ground here typically. Then just pay attention to their wiring diagram:

https://www.itead.cc/wiki/images/c/c7/Sonoff_Pow_Wiring.jpg

But as you see, they're tolerant 90v to 240v, so they work great.

The difference between 240v and 120v is that 240v is 2 hots and a ground. 120 volt is a hot a neutral and a ground. You need a 2 pole breaker. The voltage between both poles is 240v.