How to run mc4 cables through window?

I have an AC200p and 2 PV200 panels. When using the unit and deploying the panels, I’d like for the panels to be outside and the ac200p to be inside. I’m going to run the mc4 cables through a window to the ac200p. I don’t want there to be a big gap in the window, though, to let in heat and pests. How do you think I can accomplish this? Any tips?

piece of foam pipe insulation with a couple of holes or slits cut out to run the wires through and then close the window tight against the round insulation tube


Great idea - thanks!

Two thin sheets of copper, insulated with lacquer. The appropriate cables are soldered on.