It is a generac Ive wired 2 of the generac models. You may need to use a Square D stab in lug on the neutral bar if you pull bigger than #6 for neutral unless this was fixed w/ the new name and all. But 1st one was a 20 kw pretty much the same configuration the 2nd was a 17kw a guy bought used, it wouldn't run and according to a generac dealer the valve lash was off it ran fine after that was fixed until one morning the generator was running for no reason. I found the sensing fuses were both blown. Followed some recommendations from this site to trouble shoot. I found the sensing unit circuit also fed the cold weather stuff the guy installed. Replaced the fuses and theres been no issue since then. But its relatively straight forward good luck hope this helps.