While @electriceduard has been a champion for RV technicians, I have to take issue with his most recent video attempting to use our methods to solve a calculation for @theangrysparky. This was submitted by adoring fan, “Person who knows things”.
It’s not quite the right solution, but he was on the right track with doubling things.
I’ll tell you how *I* solve this problem. When determining how many amps are drawn on a 240v 5500w load, you divide 5500w by 240v: 22.9amps. However, the only way you get 240v is through two 120v legs. If each leg has 22.9 amps, you have a total of 45.8 amps.
Now that you have 45.8 amps on 120v, you need to double that back up to 240v: 120*x=45.8*x.
45.8 x 2 is therefore around 92 amps. However, since it’s fed with two 120v legs through a 2-pole breaker, you can use a 50a 2-pole breaker to run it.