Originally Posted by
RCaffin
Well, that would probably be OK, but ...
First of all, the wires will be carrying something like 5 mA. That is next to nothing, so the llighest copper would do. But there is vibration and rubbing to consider as well, so you don't want something too light.
However, there's a lot of noise around the machine, so it would be nice to use screened 2-core instead of unscreened 2-core.
Jaycar WB1504 looks suitable (on the web site that is). It has a thick PVC jacket.
WB1530 is a screened 2-core microphone cable, which is probably even more robust. A bit more $$ though.
WB1590 is not 'screened' per se, but if you earthed (one end only) two of the four wires it could also do.
Earth the screen at the control end only, NOT at the switch end.
Cheers
Roger