plug - Which connector would I use for a non standard low voltage wall connection? How can I label it?

(Please see this question for background info)

In my pantry, I'm going to be connecting a door jamb switch across a low voltage application. I'd like to (instead of fishing the bare wire through a hole the wall) use a wall-plate with two connectors. I see that banana plugs can support 30v at 15a (way more than I would need), and come in a keystone jack. I am wondering though if using connectors typically for audio would present a hazard and if there is a better option that would be available in a keystone jack or standard wallplate.