Control Voltage on Data Labels

[fifty60]

What is the use of putting the control voltage on Data Labels that are affixed to the machine enclosure? For example, my main power is 480/277VAC, why would I need to have the control voltage of 110VAC on the enclosure as well?

 

[Smart $]

So the observer cannot claim ignorance...???

On the serious side, does the standard you are complying with require it?

 

[fifty60]

It does not. So as a minimum requirement it is not, but as good design practice I guess it is giving anyone servicing the machine a heads up regarding what voltages are inside the enclosure...

 

[Smart $]

...as good design practice I guess it is giving anyone servicing the machine a heads up regarding what voltages are inside the enclosure...

And I agree with that.