This may be useful for you if you haven’t memorized the pins on the Arduino UNO R3
Below is the breadboard circuit diagram. It’s pretty final. I hope to clean it up a bit when the project is final.
The major additions in this rev is that I’m using transistors against the Arduino digital outs to control the AC relays and a corresponding LED indicator. The on/off switches in those circuits provide a bypass to turn on the AC switches if necessary.