The Kohler brand ATS will perform a contact closure when utility power fails 
for a two wire start generator. it doesn't switch over until it senses the 
generator ac is present.
Your Generac model may or may not be 2 wire start. The newer "smart" ones can 
be converted with a generac adapter kit. 
On 8/12/2020 12:18:16 AM, Kirpal <[email protected]> wrote:
Hi Wrenches.
Can anyone recommend a good 200A Nema3 auto transfer switch that does not need 
to have any generator feedback (ie. Generac version which requires signal from 
generator) to transfer. Basically looking for a dumb version which transfers 
based on loss of grid voltage, and then reconnects based on re supply of grid 
voltage.
The Gerearc version which was installed today relies on feedback from the 
generator which senses loss of grid voltage to authorize the transfer switch to 
toggle to back up mode. When the grid comes back the transfer switch switches 
back to normal mode without feedback from the generator voltage sense wires but 
not the other way around.

Thank you!

Sunny Regards,
Kirpal Khalsa
Oregon LRT#25
NABCEP Certified PV Installation Professional
Oregon Solarworks LLC
www.oregonsolarworks.com [http://www.oregonsolarworks.com]
541-299-0402
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