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Wire gauges and Fuse sizes per Inverter wattage at different voltages 2021-09-16

These charts provide exactly the information that a beginner needs before they purchase the items for their first solar system. I looked for charts like these for a long time and these are the best I've seen. I am now purchasing the correct circuit breakers. I was 10 amps over which is huge. Watch the video which has excellent information by clicking more information and click on go to download for all the charts and more information on wire length. I've attached the charts below as well.

I have a 48 Volt solar system with 4 panels in series which saves a lot of cost in wiring using 10 gauge wire for a 1500 watt inverter and my 60 amp charge control is capable of 3200 watts. Just know using 48 volts there is a greater potential of getting shocked. I'm am told it can happen if your hands are damp. It hasn't happened to me but I'm careful. When connecting to your inverter you want to use a resister. I just use a light bulb which works good. Not using a resister can nock out your capacitors. I'm no expert but I wish I had these tools when I started. I looked long and hard for this information. Hope it helps you.
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These charts seem to take into account voltage loss only and not ampacity. For a 2000 wattt inverter, the charts recommend 2 AWG or smaller wire for shorter runs, but with the 155 amps an inverter could pull at these wattages, 2 AWG is not rated for this.

If the inverter goes to a low voltage cutoff of 10 volts, the same wire could see 200 amps of current, making these recommendations way to small.

In my Experience, inverter runs are so short that usually voltage loss is not as much of a problem, if at all, compared to making sure not to exceed wire ampacity.
Q
Quantum Thread
I don't know. Renogy quoted me the same information the chart gave.
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