Hey Shane,
I think it is better to make the spindle cable rather short and the VFD power supply cable longer. I use 10 m of 2+PE × 4,0 mm² cable for the input cable from a IEC 60309 socket:
230 V one phase, rated for 32 A:
– Source: RalfZ, Public domain, via Wikimedia Commons
Image 1: A Blue P+N+E 6h / 32 A CEE wall outlet
On the input of my VFD control cabinet, I have a corresponding male
plug.
This is the common type of connector for industrial current in Europe. In the U.S. you have the NEMA sockets and plugs.
My spindle cable for my 2.2 kW spindle is 6 m of LAPP ÖLFLEX® CLASSIC FD 810 CY in the strength shielded 3+PE x 2.5 mm² – #0026271). My spindle requires a Phoenix M17 connector with turned contacts.
You may find some more information in