Forum Discussion
RoyB
Aug 19, 2014Explorer II
X2 on the above comment about CHECKING your 50AMP setup before 'EVER' plugging in the RV 50AMP TRAILER.
This is a typical wiring diagram for the 50AMP and 30/20AMP Service

This is neat drawing of checking your 50AMP service drop.

This is neat drawing of checking your 30/20AMP service drop.

Always insure your local electrician knows this is for the RV TRAILERS and be aware of the difference between house wiring and RV trailer wiring. It would almost be best to use a BONDED ELECTRICIAN as then he will pay for the damages for blowing up many of your 120VAC APPLIANCES plugged into the 50AMP System if wired wrong. Note I indicated 120VAC APPLIANCES - NOT 220VAC Appliances as the Qualified Electrician is expecting you to be using... Ask the electrician to read up on the RV TRAILER wiring requirements.
The RV 50AMP setup is actually two 50AMP 120VAC ELECTRIC ZONES like shown here..

Just my thoughts...
Roy Ken
This is a typical wiring diagram for the 50AMP and 30/20AMP Service

This is neat drawing of checking your 50AMP service drop.
This is neat drawing of checking your 30/20AMP service drop.

Always insure your local electrician knows this is for the RV TRAILERS and be aware of the difference between house wiring and RV trailer wiring. It would almost be best to use a BONDED ELECTRICIAN as then he will pay for the damages for blowing up many of your 120VAC APPLIANCES plugged into the 50AMP System if wired wrong. Note I indicated 120VAC APPLIANCES - NOT 220VAC Appliances as the Qualified Electrician is expecting you to be using... Ask the electrician to read up on the RV TRAILER wiring requirements.
The RV 50AMP setup is actually two 50AMP 120VAC ELECTRIC ZONES like shown here..

Just my thoughts...
Roy Ken
About Fifth Wheel Group
19,031 PostsLatest Activity: Dec 16, 2025