Transfer Switch Install: 2 Power Sources, 1 Output. RV Residential Fridge

Using the "APIELE Changeover Selector Switch 20A 3 Position 8 Terminals Poles 440V Universal Rotary Cam Selector a.co/d/3HuuWYh" to transfer power from RV house power to RV inverter for running on 12V sine wave inverter. This video shows the detailed wiring using 16 gauge extension cord ends.