The media could not be loaded.I bought this to have an automatic cutover from my small solar setup over to the grid when the battery runs down. I tested the failover with a 300Watt Inverter and it would just click a few times and fail. At first I thought that my unit was broken, until I noticed that it was pulling over 25 amps for a short period when connected to the grid and my battery could only provide 20 amps. I replaced the 20Ah batter with a 100ah variety and now it all works as advertised. Other than that, it may take a bit of experimenting to get the connections straight — like others I received an instruction sheet for a different unit. Attached is a photo of my setup showing the cabling, maybe it can help anyone who is stuck.








