inverter fuse/breaker

starcraft69 wrote:

This is what i was thinking Is 300amp breaker the right size?

What size wire will you be using? That's the main purpose of the fuse--to prevent a fire from the wire overheating in the event of a short circuit.

300A is a reasonable ballpark value, though larger might be better as most inverters have a surge capability somewhat beyond their nominal rated capacity. (Well, decent inverters do; all bets are off for questionable unknown brand inverters from overseas.)

Edit: The inverter instructions may have some recommendations on power lead wire size and fusing.