2oldman wrote:I'm not sure why you need a fuse on a device that's designed to be short circuited. Yes, panels are designed to be short circuited, that's how PWM controllers work they short circuit the panels. That's where you get your Voc and Isc ratings from. Panel wiring is typically #12 which is rated for 45 amps. Now worries there either. I can see putting a fuse on the controller output but not on the input.RoyB wrote:Would this happen by two wires crossing, or some other way?
all solar panel cables should be protected by high current fuses so that short circuits will blow the fuse
