Quote:
Originally Posted by clearsea  Canada: up = on.
Annoying to buy a toggle switch that is not labelled. Only option is to test it before installation in a panel. |
North American (up = "on") SPST switches will have the terminals on the right hand side, when viewed from the front.
A single raised dot (braille ?) indicates the up (on) position on otherwise unlabelled switches.
This is just a matter of convention, so it doesn’t really matter which way you orient your switches; provided you
remain consistent, and it makes sense (intuitive) to you.
SPST = Single Pole Single Throw
Note the missing (green) safety ground, in the picture. Tsk, tsk.