30 amp & 20 amp to make 50 amp
does this work or is the 30 & 20 side feed each other , just going to make 20 or 30 side pop c.b. or worth making one to have just in case ?.
Forum Discussion
Lantley wrote:
Dutch_12078 wrote:
Running the second A/C in our previous 30 amp coach on a separate 20 amp cord to the park utility outlet when needed was a simple low cost conversion process. We haven't needed it yet in our current 50 amp coach, but I could easily do a similar conversion if that changes. The only parts involved were a 4x4" junction box extender, a 20 amp male/female plug pair, and some short lengths of wire. A 12ga extension cord connects the setup to the park box. Total cost about $20. Of course if the 20 amp breaker was slaved off the 30 amp breaker, then that was an issue...
Connecting it to a 50 amp circuit is not quite as simple as using a 30 amp circuit.
Were you able to run both A/C's on a single 30 amp circuit. Most people can't or it is hit or miss.
On our current 50 amp coach, since our second A/C is on it's own breaker, doing a similar separate cord setup is even easier than the old 30 amp setup. All I need to do is loop the line from the breaker to the A/C out from the breaker panel to a convenient external location and insert the plug set with the male on the A/C side. On 30 amp park power, I would then just need to unplug the A/C connection and plug it into a 12ga extension cord connected to the park panel's 20 amp utility outlet so both A/C's could be used at the same time just as they were on the 30 amp coach.- Many older camps, including a small original section of ours has 30 /20 A peds. They are 'spider ' wired back to a primary breaker at the main panel. They are on one 'leg', and neutral so no cheater will give more than the nominal 120v 30 A the main breaker at the remote panel allows. It was legal then, is still grandfathered, no issues.
Balanced 'loop' wiring provides all 240v up to 600 A in every pedestal depending on cable size so they can support cheater 30-20 plugs only if the 20 is not a gfci.
The only true way you can get more out of a 30/20 ped. is if you know its loop wired,with # 6 or larger to each breaker, so you can you plug in separate cords to each outlet to supply separate loads.
Ask the camp about it.
