"Nightjar \"cpb\"@" "insertmysurnamehere wrote:
On 19/05/2011 19:48, wrote:
"Nightjar\"cpb\"@""insertmysurnamehere wrote:
Can you point me at the process control buttons you are talking about
please. Would they need any electronics behind them to actually switch
lighting loads?


This is the sort of thing I had in mind. It is an American site, but gives
a better idea of the range available than other sites I found.

http://www.automationdirect.com/adc/...ors/22mm_Metal

Those are 22mm diameter, but there are 16mm diameter and even 9mm
switches available if they are too big. Simply Google size modular switches.

The 22mm size will normally take up to three modules at the back, which
can be contactor blocks, lamps or LEDs. By selecting contactor blocks
and actuators you can have any combination of normally open, normally
closed or toggle on/off switches with or without illumination. The switches
are completely self-contained and need no additional electronics. Some
actuators have sealing shrouds that moisture and dust proof them to IP 67.

OK, thank you, I can search on from there.

--
Chris Green