Twoskinsoneman
Senior Member
- Location
- West Virginia, USA NEC: 2020
- Occupation
- Facility Senior Electrician
Be sure to size the line conductors properly. Had an electrician that put in a 3000 watt unit and it would not work when loaded. Well duh he ran #12 AWG for the 12 VDC.
This is a very good point Brian. I've installed lots of Xantrex Prosine inverters and for the 3000w 12vdc inverter they say you need 500kcmil conductors for a residential install.
And it is not just based on the load. It was based on the huge in-rush of current into the the inverter to charge the internal capacitors. If your wires are too small the inverter will error-out do to initial voltage drop.