Sizing an Inverter Fuse?

Question:

I'm applying your techniques to my RV. I have (2) Trojan T 125 6V batteries, 240 ah. How do I determine the fuse size at the battery using 4/0 cable in your inverter diagram. - Phil

Answer:

Sizing an inverter fuse is based on the recommendations from the inverter manufacturer.  For instance, most 2000 watt inverters recommend a 250 or 300 amp Class T. Typically 3000 watt inverters need a 350 or 400 amp Class T. - Jeff