30 amp & 20 amp to make 50 amp

Bobbo wrote:

Lantley wrote:

ScottG wrote:

MrWizard wrote:
the OP did not mention WH

My point was to run some load in your rv off the 20A recpt. at the pedestal instead of running everything off the 30A.
Could be a Wh, space heater, toaster oven, Margarita blender, etc.

I use a RV Safepower
transfer switch to supplement my power when I'm caught with my 50 amp RV on a 30 amp site. I can run my 2nd A/C or Washer/Dryer circuit via the RV safe power transfer switch. I typically plug my space heater into the W/D circuit. The switch works with GFCI outlets.
The RV Safepower is a game changer. 30 amp site are no longer a deal breaker for me. Bring on the state parks.

HOLY ****! For $350.00 I will move plugs to switch power.

Here is an automatic transfer switch that cuts off power to load #2 whenever load #1 is turned on, and for less than $90.

Intellitec Power Management System Control Module

Not quite the same function as the Safepower transfer switch.
I'm not trying to share a breaker between appliances. I am allowing the 20 amp pedestal breaker supply electric for my A/C or heat in lieu of the main 50 bamp circuit. It allows the 20 amp circuit to supplement the 30 amp circuit which is what the OP is wanting to do.
Once you understand what it does the price become unimportant.
It allows a large RV's to operate on a 30 amp site and run both A/C's without issue.