generator output question

[Kossetx]

Since I'm a shop teacher a fellow teacher brought in a generator and told me it doesn't work and I can have it if I wanted it. I cleaned out the fuel line and it runs like a top, first pull. I've never had a generator before and the 220 output on this stumps me. It's a Colman 6250/5000 genny. Why is the 220 circuit only 20 amps? Wouldn't it handle 30 based on 5000w? Pardon my ignorance and thanks for any thoughts.

[Arrow-Tek]

If you divide 5000 watts by 220 volts you get 22 amps so I would say it’s rated for 20 amps.

[Kossetx]

Thanks, I was looking at the rule of thumb 150w=1A, therefore 30a=4500w. Why I asked. I see other 5000/6250 generators almost all have a 30A 220V outlets.

[BrianL]

Thanks, I was looking at the rule of thumb 150w=1A, therefore 30a=4500w. Why I asked. I see other 5000/6250 generators almost all have a 30A 220V outlets.

That's at 120. 220 will be about 1/2

P = I x V

P= watts
I= Amps
V= voltage