Originally Posted by taylorbob1
But the Onan generators have been known to (on very limited occasions) to generate power surges
Hypothetically...You would then need to have two Surge-EMS systems installed
One for the Incoming shore power, and one for the Onan generator.
Please correct me if I’m wrong.
All Surge/EMS hardwired installations (and instructions) are suggested to be after the ATS
Especially since electromechanical devices like the ATS have little susceptibility to damage from power surges: they're like smart breakers.