Need advice on Replace rotating AC source selector rotating switch

[geoleo]

The one that came with the 32yo boat had positions for off -Shore-Generator-and Inverter. I discovered thru following a very warm wire that a post terminal was cracked. All I see available are the Blue Sea ones that have OFF + 3 more positions. I'm worried I will get wires wrong! Help! Apparently the originals aren't made anymore. The Blue Sea is available at WM for $135 and looks identical to Chinese made unexiden??($14 for those).lol

[jamhass]

Get the Blue Sea, and add labels to match your existing switch. First, label all the wires. The back of your existing switch is labeled too, so pay attention. The wire to the house panel goes to the common terminal, shore to terminal 1, genset to 2, and inverter to 3. Label front to match. Don't forget to make sure ALL power is off first, including disconnect shore power cable and inverter.

[Colin A]

What voltages and amperage's are you working with? Shore 30A 120 or 50A 240? Generator 120 or 240 how many KW, etc.

[geoleo]

AHA I found the blue sea instructions on line and ordered it from WM