[RE-wrenches] fusing requirement for 4 strings run to a Inverter with 2 MPPT's

Allen Frishman amfrish at aeonsolar.com
Wed Jan 27 06:11:48 PST 2016


Wrenchers,
What is the requirement for fusing 2 strings per MPPT?     Specifically for an inverter like the Fronius Primo that has no integrated fuses.    If you run 2 strings to each MPPT do you need to fuse each string?    In this case there is a total of 4 strings which would need to be fused if using a single mppt.     

If the home runs are run in separate conduits from the array to limit the strings in the conduit to 2 per you still have all 4 strings together in the inverter.

All thoughts and feedback are appreciated.
Al Frishman
AeonSolar

(917) 699-6641 - cell
(888) 460-2867
www.aeonsolar.com


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