· Bête noire
Yeah, definitely do not wire 110VAC through a mat switch. The way I use them is to tape a 5VDC relay to a 9 volt battery and wire the battery in series with the relay coil and the mat. Use the relay to switch power to the big stuff. This setup works even with 50 ft. cable runs from the mat to the relay using 18 ga. lamp cord. You also get the portability of not having the mat relay powered by a wart.