Hi JT,
Check out this link
http://www.beckwithelectric.com/relays/m3410/m3410a.htm
Steve
Thanks for the link! Looks very complete, as far as the control circuits are concerned. I'd like to hear how it works for whoever installs one, and what extra parts are needed (sensors, etc.) for input and output. My brief read of the tech sheet does not describe a contactor for switching power, so I assume that is also extra (and any links on a good contactor would be appreciated.)
I'd buy it, except...
1) Looks like it's VERY expensive ($1000? more?)
2) Relies on lots of computers and fragile parts. While I'm a computer
person by trade, I am trying to make my genset no more complex than
1960 technology (or reasonable facsimile thereof.) I like relays I can
fix with a tap of a finger and whose motivations I can see or hear with
my eyes and ears.
3) Possibly does not pass my 'longevity test'. In 40 years, can I get a
replacement for the panel easily? Again, perhaps I'm building to
unreasonable specifications, but I think that I'll still be maintaining
this monster when I'm 80 and I'm trying to give my older self a break. :-)