bdosborn wrote:Make sure you don't let the ATS switch over to the inverter when shore power is connected. While the ATS transfer is a break-before-make connection, there isn't a center off delay - the transfer is made quickly. Any large motors that are running (like A/C) will back-feed current that is out of phase with the inverter and create a short circuit. I took my ATS out and replaced it with a 3 way switch with a center off position for that reason. Also, I thought the ATS was a power hog as mine pulled about 10W when the contacts were holding in to inverter power.
Here's the type of switch I used:
Rotary Cam Switch
Bruce
Bruce I had the same thought about the inverter using power to energize the relay. That is the reason I moved the N and H to the normally closed contacts. That way it wouldn't have to use power while in use