To be clear to all we are protecting each string coming into the combiner box with a DC rated 15 amp breaker
On Wed, Nov 9, 2016 at 3:57 PM, Jerry Shafer <[email protected]> wrote: > Wrenches > We are getting some questions from PRMD some questions relating to 690.8 > here is what we have > 3 modules, 260 watts at 9 amps ISC each module is a single string which > goes into a MNPV6 disco/combiner/disconnect > combined to a 30 amp breaker, it is being replaced with a 40 amp per > 690.8(A) 1 > leaves there and goes to a 32 amp disconnect in our device. > here is where it gets interesting > 690.8 (A) requires the 40 amp breaker but reading down to 690.8 (B) 1 we > need to up-size to 50 amps (no 45 amp is non available) > We also have added the 63 amp GFI in the disco > we have also moved up from # 10 wire to # 8 wire as a result > All this seams over kill for three modules, there are 2 exceptions but > PRMD do > not feel they are relative. > Is the Midnite solar disco considered an assembly with the bus bars inside > if we install the breakers > Any ideas would be helpful > Jerry > > >
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