Forum Discussion

supercub's avatar
supercub
Explorer
Oct 01, 2020

How long can you go on a 50 amp extension cord?

How long can you go on a store bought 50 extension cord? I need to run both AC's and lights TV etc, the normal things. Is 100 feet safe? or 75? or 50? or ? It's for a 38 ft Class A diesel. ...
Class A
joelc's avatar
joelc
Nomad
Oct 01, 2020
I have gone with the cord that came with my unit and an extension. ?? 50'. I do not remember the formula for voltage drop, but you should be okay. Do you have a surge/EMS protector? This might assist.

About Motorhome Group

38,763 PostsLatest Activity: Dec 05, 2025