Review on Optimized Mounting Position for Baomain Changeover Terminals by Sirious Cavalli

Excellent quality looks very durable no problems. If you're interested in wired connections, here's how it works: No contact is made in position 0, so that position cannot be used for any function other than shutdown. 1, 1 and 2 make contact, 2 is 3 and 4, 3 is 5 and 6 and 4 is 7 and 8. So each position is an independent contact but you can of course connect them all together to make a switch with them make a channel with 4 positions plus OFF.