Wiring Gauge

That's probably fine for such a short run inside a switch...and even going to the controller and for aux power. The terminal wire is 18 gauge.

Robert: As Mr. Spock once said on Star Trek, "My guess would be valueless". But since the internals of a FasTrack switch use 5 vdc, 22 gauge should be adequate.

Actually, #22 is vast overkill!  The Fastrack switch only draws a couple hundred milliamps maximum, the switch motor is a tiny PM motor.  #26 or #28 would be more than sufficient for anything inside the switch!  The only exception would be if a wire was carrying track power to another part of the switch, but I don't think there is such a connection in the Fastrack switch.

#22 is the size that Lionel uses to wire pickup rollers in many engines!

22 or 24 would be just right.  Whether or not the switch uses such a low voltage and small current, these gauges will eliminate voltage drop on long runs.

I haven't seen 28 gauge wire advertised for any model train use. It's generally used in internal wiring of computers and other similar applications. It is a b*tch to handle, terminate, bend, solder, etc, without its breaking.

Thanks Arthur

Thanks all, 22 it is.