In my boat I have a 2.2 kW starter motor, last week the starter motor shorted and melted one of the cable lugs. The starter motor is connected directly to the battery without fuse, so now I want to prevent this from happening again.
I have changed the wiring (Sqr:50mm², Len:~1,5M) and starter motor now, but I want to install a fuse for the starter motor. The starter motor is marked with 2.2 kW and it runs at 12VDC. How do I calculate the startup current, and how big fuse should I install?