The only difference between an ATS and a MTS is the automatic action; if the ATS trips on overload, the ATS ceases to be automatic and becomes an MTS at that point, doesn't it? I wonder if any AHJs will buy into that explanation? [Linked Image]

It's common sense that if you want your generator to be automatic, you ensure it won't overload. If an overload is unlikely but possible and automatic operation is desired but not required- well, you're SOL in 2008...

[This message has been edited by SteveFehr (edited 11-13-2006).]