Sorry Raptor i worded it poorly. I needed to Plug the whole with the wires in it. We are looking at either using a cable gland or having the equipment suppliers provide NEMA 4x stats. Then the problem can be fixed with a simple gasket that should come with the stat. Thanks for all your help.
I’m trying to find the best way to patch a hole in a NEMA 4x panel box. In order to mount a temp stat sensor onto the box we were required to run the wires into the box. The Stat sensor is an open device and a gasket behind the stat would not properly shield the hole from the outside...