DIY 50 amp to 20 amp pigtail
I want to plug my tractors block heater into our 50 amp RV service for the upcoming winter months… Our panel has 1 - 50 amp and 2 - 20 amp breakers… both 20 services are taken and currently used ye...
Forum Discussion
KnowNuthin wrote:Cummins12V98 wrote:
I advise 12GA wire and 20A breaker.
Our barn sub-panel is supplied by a 50@ 2-pole breaker in our main house panel… the circuits original purpose was to have a 240v, 50@ welder outlet in the garage.. I had an electrician repurpose that service to our 50@ RV plug in the barn (no longer a 240v outlet in the garage)…
I currently have one 50@ and 2-20@ breakers in the sub-panel… when we plug in the RV we shut off the. 20a breakers and vice-versa…
The spousal unit is an electrical engineer and as such has assured me EVERYTHING electrical is underrated… I.e. we have more than 50@ going into the barn panel and each of the breakers will handle more than their rated capacity (but will trip in the event of an short/overload)… at least that’s what I heard… when she gets going I understand about every third word, the rest is electrical-eze…
Chances are very good I won’t ever run each of the circuits up to their rated capacity… but I’m the worrying kind…
My intention was to replace one of the existing 20a breakers with a 15a then add a second 15a breaker…. Which would give me 20a + 15a + 15a = 50a (plus the dedicated 50a RV outlet)
Yes? No? Other suggestions?
You actually have two 50A circuits available as 100A total capacity. Add another 20A and forget it.
