Keezer control panel with spark4

Ok, trying to illustrate how the control panel should look like. For a carpenter/brewer this is not so straight forward and I have therefore asked a certified electrician to build it for me. Anyway, he requested a schematic illustration showing what I want - see in this post - should be fitted on a DIN rail.

Few questions, and perhaps some of you is willing to support me:

  • I wonder how I should get the led indicators wired up. Do I need an additional contactor or something like that - the leds can be very small, just to see what is on and what is not on.
  • How to fix the spark 4 to the door - I can order these din brackets, and simply cut a window in the door, but that will not look clean at all.