Originally Posted by saddlesore
50 amp RV is 2 120v lines ie: 25a x2 = 50a
If you hook up an RV 50a to a 240v connection you will indeed be calling a fire dept & "smoke" everything in your RV.
You guys need to understand 50 amp service. Here is an excerpt from this site.
The 50-amp*120/240-volt*3 pole 4 wire grounding Service
This*50-amp*service*has 4 wires with two 120-volt HOT feeds.*It is a*misconception*that this 50-amp RV service is something special.*This service is a STANDARD 120/240 50-amp 3 pole with 4 prongs used for*numerous*applications.*
From this common service we can draw 120 or 240 volts. Each leg is 50 amps @ 120 volts. 50-amp X 120-volt = 6000 watts. But since there are 2 HOT 120-volt* legs at 6000 + 6000 = 12,000 watts to use in the RV or 50-amp X 240-volt = 12,000 watts when used as a 240-volt service.*
Here is another site with more detail.