Bought a c9500exw winch and in process of getting parts got cable, isolator and wondering wether I need a fuse before the isolator . Winch motor is rated to 3.2kw which is about 270A should I get a 300A fuse ( motor rated ) or just leave it ? I was always taught to protect circuits from fault currents ( short circuit and overload). Any ideas where I would get one if its required .