Quoted from rottenrobert1313:I'm getting ready to start my basement and I'm only putting 2 games per 20a breaker. I seen somewhere on pinside that most games can run around 8a, so I'm going with the 80% rule.
You can put more than 2 games on a 20a breaker. I've got 4 games plus a MAME cabinet on a single 20a breaker and never had any trouble. My other games are on a separate breaker.
The Kill A Watt that VID1900 references above is great. I have one. Lets you see what a games power draw is in attract mode as well as the peak draw during gameplay. A must have if you're trying to maximize the number of games on a single circuit.
