Review on 🔌 Moes Dual Power Controller: 50A 5500W Automatic Transfer Switch for Off-Grid Solar/Wind Systems - ATS DC 12V 24V 48V AC 110V 220V by Joshua Huan

It works, but it's not secure. First, there is no mechanical lock. This is necessary when two relays or contactors feed different power supplies! It has a good chance of frying your inverter. Not if, but when. It's definitely a fire hazard. The logic/solid state part of this device is good in terms of screen and menus and usability. But where real power relays will come into play is unclear. If you inductively load this device, it becomes a very schematic device. Inductive loads have a very strong effect on the contacts and often lead to welding. In this case, there is a risk of fire with this device. Believe me. I have 2 electrical engineering training. Also, never trust performance data from China! It will never pass UL listing test standards. Never! **Update** I found a workaround for my needs with 2 contactors and an ABB electrical/mechanical interlock. I used "common power supply" to power the contactors. I essentially hooked it up in reverse order. I used 1 hot wire for the output only and it is fed to appropriate contactors via an inverter or common power supply. It's much safer. Problem is, if you use this as intended and the public power relay fails, your inverter will reverse and be destroyed. If you don't believe me, take it apart and see for yourself. Solid state electronics (which work great!) energizes two Form-C relays so their common wires produce a "hot" wire and a neutral output. Please do the same or you risk damaging the relay which will 100% destroy your inverter. Just read other 1 star reviews where this has already happened.