50 amp to 30 amp adapter

CavemanCharlie wrote:

SoundGuy wrote:

rbpru wrote:
For the technically inclined, the 50 amp plug has two 120 volt lines available which can be combined to power the heavier electrical loads of a 50 amp TT.

CavemanCharlie wrote:
Um,, this doesn't sound right to me. If you combine two 120 volt lines you get 240 volts. No RV I've ever seen runs off of 240 volts.

I may be miss interpreting you though.

CA Traveler wrote:
The 50A RV circuit is 120/240V 50A and it does indeed supply both 120V and 240V to the RV.

Most RVs don't have 240V appliances but some do. But for the technically inclined it is NOT just 2 120V circuits. Rather it's a split phase design such that the neutral carries the difference in amps of the two hots and hence cannot exceed 50A. The circuit is identical to a home 50A oven for example.

The above as written could suggest to some that "50 amp RV service" can only handle a maximum load of 50 amps when in fact it's 100 amp service across 2 out of phase legs with a common neutral, offering 12,000 watts of power vs just 6000 watts for a true single phase 50 amp service, 3600 watts for single phase 30 amp service, 2400 watts for single phase 20 amp service, and 1800 watts for single phase 15 amp service. Ideally this so-called 50 amp service will be installed in any coach so the anticipated loads will be somewhat balanced - e.g. with dual A/Cs one will be wired across the hot and neutral of one leg, the second A/C across the hot and neutral of the second leg. Any suggestion that this service offers a maximum load capability of just 50 amps (6000 watts) is simply incorrect.

Thank you. Though, with my Caveman brain I would have to set down and study all of this closely to understand it well. Because I don't have the need to know this knowledge at this time I think I will just try to save my limited brain space for other things.

Have a nice Day.