Jay: The GFDI breaker can be installed upstream of the charge controller. At that position in the circuit the amperage may be less than in the CC output circuit, assuming the MPPT voltage is higher than 48 VDC. An 80 amp GFDI (or smaller) may be adequate in that position. The output of the FM80 could be routed through a more commonly available panel-mount 100 amp breaker.
William Miller On Mon, Aug 16, 2021 at 2:03 PM jay <[email protected]> wrote: HI All, I’ve got a system with an outback FM-80 that is running at full power 48v. Its connected to a outback 80 twin pole GFDI breaker. The breaker is tripping due to running at 80 amps. Is the midnite *MNDC-GFP100RT-2P the only option?* thanks jay
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