Power invertor

[Nilao]

The formula I use is Watts÷Output Volts×Input Volts=fuse size. So your typical 2500w inverter would be 2500/120×12=250 amps. Now that's if your using the correct wire size for the load. If your using say a wire that's .85 the proper gauge then you'd need a 300 amp fuse as the wire will need to carry more average to produce 2500w on the other end. So that 80A fuse will power a max output of