Control Panel Voltage

[Lakeside53]

Can you elaborate on what you mean by 'isolated'. Do I have to have 2 different power sources? I apologize for my lack of understanding on control circuits. I will definitely look into ANSI B11, thanks.

Typically by means of a control transformer. 480/240 primary, 120 secondary.

 

[JRIowa]

This is quite interesting to me. 90% of the control podiums (operator podiums, away from the control panel) are 110 VAC.

That's quite possible. How old are they and would they pass an GOOD safety inspection?

You can have a 120/120 transformer with a fused secondary. You can use a GFI on the control circuit. I'm drawing a blank on others (not a good day). There just needs to be something from preventing the operator from getting hit with 20 amps.
JR

 

[motojoel1]

Up to being new.
Powered from a little transformer, 2-5 amp fuse or so on the secondary.