When I built the Kelley II, the old man had a cow when he decided to get cute and check out the price of a three phase transfer switch. I had to design and build a 100amp transfer switch which meant four contacts and a loss of phase auto-disconnect.
You want fun? Deal with a pair of DC voltages, and three phase, shore and gen power and electro-galvanic isolation. .03vdc potential maximum. Zincs empowered only. Chatter with contactors for 30 HP refrigeration motors is not an option.
The significance of which is some of you are dealing with amateurs. Look elsewhere for solid intelligent advice.
