Yahoo Message Number: 14242 (http://groups.yahoo.com/neo/groups/Country-Coach-Owners/conversations/messages/14242)
Inverters, contacts & Xantrex 458 Problems with electric contacts may be avoided or cured with Stabilant 22. http://www.posthorn.com/Stab_2.html (http://www.posthorn.com/Stab_2.html). For 20 years, I have read very favorable reviews of Stabilant 22. Never seen or used it.
A more recent product, CorrosionX is my choice in my coach. It is sprayed on electrical connection points & rusting surfaces. CC coated many ground connections with a sticky dark red stuff & did nothing for nearby +12 volt connections. Now the +12 volt connections have CorrosionX. All the exposed relay & breaker connections were sprayed.
Either Stabilant 22 or CorrosionX would be good for inverter connections, both internal small pin terminals and 300 amp battery cables.
My Xantrex Freedom 458 is not good for some uses. Electric heating pads are not happy with the non-sinusoidal output of the 458. My wife is usually on a heating pad. Terry has tried 3 different models of pads without one working on the 458. Some pads work less than one hour before the control partially melts. Onan genset has digital non-sinusoidal output also & makes pads hotter than normal shore power.
An new air filter ran 1 minute, then died on the 458. The electrostatic section lived, the fan died.
A pure sinusoidal output inverter is a must for a some uses.