Ok, as I sid, baskcally it is a plug, socket and circuit breaker in a box.
Is your rig 30 or 50 amp (makes a difference) and if 50 do you have an EMS? This is the "Generic" version
You have to find the wire that runs up to the (usually) rear Air Conditioner. If it's a 30 amp rig this wire runs to the Generator and can be found in the Generator J-Box. if it is a 50 it will either run to the EMS panel or the main fuse box.
Disconnect from where it is connected now and set aside for a bit.
Take a 12ga extension cord, and cut it so you have one part with a plug, and one part with a socket.. Where you cut it depends on where you are going to install your "Adapter" Connect the wires securely toghther. I note that the connection I made with Wire nuts FAILED.. I re-did with solder.
On the plug end of the cord you will need a single breaker box.. Run the plug end of the cord as follows.
White wire to the white wire to the A/C.. again, see above note about secure connection, Green/Bare.. To Green or Bare.
Black wires go to the two 20 amp breaker poles.
And tht's all there is to it.
To use, as designed.. Normal (50 amp service or generator) plug 2 halves into each other.
To use in "Adapter" mode, unplug and use a 12ga cord to the park's 20 amp outlet
Benefit: If you even need 120vac Geneerator power on the service side.. Unplug and tap the A/C line. (Example. Air Compressor for low tire)
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