The more I learn about 12v circuits the more I see relays used. I understand why you'd use one when a control circuit is low amps and the secondary is high amps (e.g., ignition switch to starter solenoid to starter motor) but lately it seems I've come across relays used where I'd have thought a fuse would be just as good. Do I have that right, or maybe it's the same principle but on a smaller scale? Do circuit designers use relays instead of fuses for some reason?
I'm working on wiring lights into my trunk and saddle bags so this might be pertinent. Comments and advice on this are welcome.
I'm working on wiring lights into my trunk and saddle bags so this might be pertinent. Comments and advice on this are welcome.
