FR-E800 Series Conformal Coating Technical Bulletin

This document specifies that the FR-E800 series inverter uses a polyurethane-based conformal coating on its printed circuit boards (except for connectors and terminals) to meet IEC60721-3-3 class 3C2 corrosive gas standards. It details that coated models carry a "-60" or "-06" suffix, with the "-06" version also including plated conductors, and confirms that coated products have passed a mixed gas accelerated test equivalent to a 10-year design lifespan.