Recent content by bitbob

And, an interesting thread on r/electricians that appears to verify the purpose & behavior of this "Y switch"

I know this is over 5 years later, but this forum post was the #1 google search result for "y59 b 120c" -- and I found it, as I was suffering the exact same scenario as the OP. I just wanted to add some additional things that I found, while trying to figure out *WTF* is this part, why is it...