My PI EMS 30 Amp installed unit shuts of my TT power when I run the Air Con during the day., 125’ 12AWG total from CB box, far side of garage.
Near side of garage. 105’ total wire. 125VAC start. 6.6WATTS at idle, add AC 12.9 amps 107.7VAC, add refrigerator 15.8 amps 105.4 vac. Measured with a Kill-A-Watt between the cable and 30 amp to 20 amp adapter.
My PI EMS was added after the Kill-A-Watt above. I also picked up a plug in digital voltmeter (Amazon under $20) to quickly read since my EMS is located under the dinette bench at the TT main power inlet and I was too cheap to get the remote display. (Don’t be cheap Iike I was!)
Kill-A-Watt was on sale $20 at Harbor Freight. Multimeters are great to have but being able to just plug it in and select between readings vice fumbling with probe leads is priceless. Just turn things on and off and you can easily read the changes in volts, watts and amperage.
