I am mounting a AC disconnect on a steel pole barn. What fitting do I need to pass the wire through the steel and make it watertight with the building and the box?
I just did the same thing. Used an LB conduit body to go through the metal wall and a junction box on the inside. Everything is secured by a 2x4 on the inside and a piece of composite decking on the outside that closely matches the contour of the metal siding. Will see if I have any pics. If not, I will take some this week.
