I bought a 25' Marinco yellow 30 amp power cord that has a 50 amp connector at the RV end that plugs directly into my 50 amp 5er and has a 30 amp plug at the park end. We have frequently stayed at an RV park in Colorado that only has 30 amp service. And at over 8'500', it is often 40 degrees or colder even on summer mornings. That 50 amp cord is a real chore on those travel mornings when packing up. The 30 is much, much easier. I will even use it in 50 amp parks if the weather is mild and we will not need A/C.
Like this.