I've since been told that when it comes to those generic Chinese controls, if the ON is marked as a circular arrow at the TOP of the control (typically RH side mount), this is an N/O switch. However if the TOP of the control is marked with a crossed out circular arrow, that is an N/C switch.
So the example I showed in my previous post is more likely to be an N/C switch.
The one in the photo below is an N/O switch and stated as such by the seller.
It is rare for sellers to tell buyers if the switch is N/O or N/C. I can only guess a lot of those online sellers are simply flogging these switches off, probably without knowing or caring exactly which kind of switch they are. There must be lots of people buying them, only to discover that they got the wrong type when it arrives.
EDIT: See photo and wiring diagram attached.
Last edited by vint_mow; 07/01/2512:38 PM. Reason: Extra information
