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The NEMA 14-50 plug is connected Hot 1, Hot 2 and Ground. For 120v you will need to build an adapter that is wired Hot 1, Hot 2, ground on the 14-50 (neutral is not connected) socket to Hot 1, Neutral, ground on the 120v plug.
OpenEVSE will automatically detect just one hot and set the current to 12A. L1 and L2 current is saved independently.
Twisting 2 - 12 AWG then folding in half gives you the equivalent of 4 - 12 AWG. The more area the better.
1/2" is the correct size. In order to get a water tight seal the gasket and washer are mean to be smushed. If you squeeze the pressure plate and alternate opposite corners you should be able to get about 2 1/2 turns and a great seal.
For a 4 Wire Setup, Neutral is not used and should be capped.
The copper electro plating process of the PCBs sometimes leaves more copper than desired. A little pressure while turning the screw should send them right through. Drilling should not be necessary.
Step 1 has been updated with the link to the source code and guide for loading the Module. In about a week I will have preloaded modules in the OpenEV store.
Pish button is to enter configuration menu, set timers, add xxx kWh, charge for xxx minutes, etc.
Unfortunately the pre_terminated leads which judt started shipping only come in 7". I will likely flip the positions on Input and J1772 in the photos which will give an inch more slack by sending the bottom connector to the far terminals.
H and N really do not matter, I plan to change the silk in the next revision to 1 and 2. AC_Test is 2 of the same circuit. AC_relay is a loop and AC_Line is fused on both lines so none of the AC lines are polarity sensitive.
AC_Test connects to the load side of the contactor (J1772). AC_line connects to the AC input side of the contactor and AC_Relay connects to the relay coil.
Deleted Step 1. Instruction to connect ground is now:
Step 2 bullet 4 with the red Caution Symbol.
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