Webmaster, you came up with very reasonable solution to the corrosion problem—“due diligence.” The only caveat I’d have is that the owner/hands need to close and latch the gasketed door after opening each time. (This will depend in great part if the MCCBs are being regularly used as switches.)
Farmers generally are not into maintaining electrical gear without a very good convincing. Some won’t spend money on a slick, big-city/out-to-get-my-hard-earned-money electrician in a fancy-truck-with-their-name-on-the-doors unless it’s killing their livestock.
