Circuit breaker/fuse rating?
I'm trying to rate the capacity I should get for my circuit breakers or fuses, both at the PV combiner boxes and as a safety switch just before the DC power enters the charge controller... do you just figure the max amps your system will have and use the next higher rated breaker or fuse? or do you go a couple steps past that or even more? (to prevent a stray triggering in the event of a weird surge or something that might turn off your system while you are gone)
Also, I didn't know anyone was still using fuses anymore, thought they'd all gone to breakers; but looks like there is a small price premium for resettable breakers over fuses; but I don't like keeping spares around, so will probably just pay slightly more and get breakers. Is this how most people do it now? its related to the above question, because if the rating you choose is a lot higher, there probably won't be instances of unintentional tripping.