Posted by HH56 On 2022/7/15 14:55:10
I do think the relay is a good idea and like you said, not a lot of $ to add one. The relay in the drawing is the standard 5 pin with N.O. / N.C. contacts many stores carry. It is shown wired the correct way with power going to the common pin 30. In reality the 4 pin N.O. without the normally closed contact would work well in this application.

If you already have or can only buy the 5 pin relay I would add a piece of heat shrink over unused terminal 87a. Even though it is in the middle and sort of protected, I would still insulate it or you could reverse wires on 30 and 87 so the hot wire is confined to that one terminal when relay is off.

This Post was from: