Pulling more than 50 amps ?

valhalla360 wrote:
I see a lot of supposed experts talking about amperage without specifying voltage...then calling the guy an idiot.

Without knowing the voltage, you can't answer the question.

Since there are almost never 240v appliances on an RV, we should logically assume the electrician was talking about amps @ 120v. In that case the total amps (regardless of which leg they come in on), can easily exceed 50amps.

Another wrong answer. He specifically said "big rig". And some of the high end rigs do have some 240 vac appliances. And a 240 vac appliance draws current thru the same main circuit breaker as the 120 vac appliances. The only difference is the 240 vac appliance draws current thru both poles of the breaker while the 120 vac appliances draw current thru only one or the other of the poles. So the total current flow thru each pole of the circuit breaker would be the total of the current drawn by the 240 vac appliances and by the 120 vac appliances. How much current is drawn by which voltage is irrelevant. It is the total current thru either pole that trips the breaker whether there are any 240 vac appliances or not.