Looking for some feedback here, after pondering the wiring diagram that P-J drew up for my panel. Here's what I'm planning to do:
1) Ground connections, all "home runs" to ground post on back of panel including 6# wire from my panel power 4-wire (also will wire ground post from panel door here)
2) Neutral connections, run 6# panel power wire to terminal block, step down to 14# wire, run in series to all 3 contactor coils, 4 PID/timers, flash buzzer, main power light, pump lights, and pump outlets
3) Hot 1 (Blue) connections, run 6# panel power wire to 50A contactor, 6# from contactor to terminal block, 6# to all three circuit breakers, 10# from 25A breakers to each element contactor, 10# from each element contactor to element outet, 14# from element outlet to element light, 14# from 15A circuit breaker in series to element switch, pump switches, and PID/timers, 14# from PID/timers to alarm switches and alarm light/buzzer, 14# from pump switches to pump lights and pump outlets
4) Hot 2 (Red) connections, run 6# panel power wire to 50A contactor, 6# from contactor to terminal block, ???# wire from terminal block to fused resistors and e-stop, 6# to the two 25A circuit breakers, 10# to each SSR, 10# from each SSR to element contactor, 10# from element contactor to element outlet, 14# from element outlet to element light
I'm sure it would be easier to redraw P-Js diagram with different thicknesses shown on all of the wires... I may do that (now that I'm off of work!).
What size wire do I need to run from my Hot 2 (Red) terminal block to the E-Stop resistors/switch? Any reason I should not run neutral in series? Any reason I should not use grounding post instead of terminal block for grounds?
Wiring up everything this Sunday (pending SWMBO approval). Getting close now!