Rotary switch 2 or 3 stack?

[Starrwash]

I currently use 10 position 3 stack rotary switch, only because that’s what dultmier sold me when I overhauled a closed wash I had purchased. Why 3 stack? Why 2 stack? Advantages or disadvantages of each?

 

[MEP001]

No advantage or disadvantage, it's all about necessity. Are you using all three stacks now? Is there any position (other than 10, 20, and 30) that has a wire on all three screws?

 

[OurTown]

Mep, could someone wire in relays instead of buying three stack switches? The price difference between two and three stacks seems significant enough to make me think about it.

 

[MEP001]

I've done it with IDX pushbutton switches, they have one output that you program for high pressure functions but we needed another output that triggered off of two selections for a common air solenoid. I used the cheapest SPDT Omron relay, soldered the wires right to the terminals and attached it to the end of the terminal strip with a mounting ring cable tie.

 

[Starrwash]

 

[MEP001]

Is the middle stack not used at all? Your picture doesn't show position 20.

If you are able to use the 2-stack and you order one from Kleen-Rite, make sure you move the jumpered red wires to the 2x stack.