A: Down to 4 Awg atleast
A: My solution was to make my own cord…. Bought 50 ft of 6/3 wire, two female plugs that fit my generator and this box and spliced them all together
A: Mine also has a CS6375, purchased about 2 years ago. CS6365 and CS6375 are the same Pin configuration. The difference is the structure. CS6365 is to wire with cable. CS6375 is the inlet style. I use a short pigtail that is CS6364 to TT-30P by AC Works and available at Home Depot. I believe any cord with CS6364 will mate with the CS6375. The AC Works TE1450-015D at Home Depot is 15' long. Not sure what you need on the other end of the cord.
A: this is the female connection. the end of the cord plugins into this would be the male end.
A: Yes 50 amp male connector
A: Yes, the female end of the power cord plugs into it.
A: Your white neutral wire would go to the terminal opposite the ground terminal and you're 2 hot leads would go to the other two
A: In general is AWG #6 THWN or THHN copper. The grounding wire can be #8.
A: X and Y are for the line (hot/black/red) legs of the circuit. There are two lines since you will use a 240v breaker for a 50-amp circuit. W is for the neutral (white) wire. Just Google "240v x w y wiring diagram" to see examples. I am NOT an electrician so please consult an electrician when you are not sure how to wire something.
A: X and Y are the lines (black) coming from the 240v 50amp breaker. W is for the neutral wire (white). Google "240v x w y wiring diagram" for more examples like the photo attached. Ask an electrician for help. I am NOT an electrician.