Gerrit123

I've just sent Hubble a support request. I'll keep you all updated. 

Currently very scarce just like all PV related items. Have been looking myself in Pta and nothing I could find. 

Yea the formula is  Iscx1,3 according to what i remember from SANS 10142. The 8kw should have 22A mppt's yes but some users here reported maxing out at 20 so it would be nice to see if they actually can do 22A now ..

Interesting! Thanks, yes seems like I'll have to increase those fuse sizes then (based on previous advise I sourced 15A for rated Isc 14 PV input from my JA 550Ws). Perhaps they offer some leeway though, i.e. break after sustained excess? Anyway, will keep in mind. 
Edit: have now also read (albeit a US site) that on the PV input side, fuses should be specc'd 25% above Isc... that would take 14A Isc to 17.5. On a SA site I read a recommendation of a 20% oversize, and then to use the next available size. In any case, 20A would still within the inverter's MPPT spec, and I only have one string per MPPT...
The 8KW Sunsynk is 22A+22A on the MPPTs. 

I am not sure exactly how normal it is but that is whats happening . On my 455W JA panels i also see 12,2A +- semi regularly . For that reason i wouldn't go much higher than 455W panels . I would definitely replace those fuses with 20A ones. The 5kw sunsynk has 13 Amp mppt's and the 8kw has 20Amp mppt's.

The Ioc of that panel seems 14A, is it normal for this to be exceeded during regular use? I've specc'd 15A fuses on the PV side on my JA (also Isc 14A, 550W panels).
But either way, if the SunSynk 5KW has a MPPT max of 11A then these panels will provide too much current (and be clipped) - that said, SunSynk website is notoriously unreliable for specs, eg the 8KW inverter has 22A+22A for the PV input, yet website still says 18A. Perhaps in reality the 5KW also has a much higher PV input amp rating. 

I have a friend with those panels on his 8KW sunsynk. I have seen them very regularly produce between 13-16.5 A so i would not put them on the 5Kw inverter as you wil definately be maxing out the amps lots of the time . This means you lose out on lots of power .

For Voc the maximum is 500V so one can go to a max of 9 panels. Under normal max power conditions the Vmp will still be under 425V for the MPPT. 
If you want to max out the inverter rating the 2 strings of 6 seems the way to go. 8 or 9 in one string means one cannot just add a few more on MPPT2.

They will work - the Amps MIGHT get clipped on certain days but they will work. What you need to keep an eye on is the VOC - which is 49.6 - each MPPT can take a max voltage of 425v so 49.6*8 = 396v is your max number of panels

I've just sent Hubble a support request. I'll keep you all updated. 

I've just sent Hubble a support request. I'll keep you all updated. 

Yeah the one that bombed out had been playing up for a couple of weeks and we had tried everything.Hubble support were fine but until a cloudlink is in place then they cannot see whats happening.It was crazy stuff.

It doesn't look like you are reaching the bulk/absorb voltage of 54V suggested for the AM-2 in this doc: https://www.fullcirclesolar.co.za/wp-content/uploads/2021/02/Hubble-Lithium-charge-settings.pdf

The older manual suggests 53.6V, which it looks like you are also not reaching on your graphs, I think you need to increase your charge voltage.

My 6X540 watt string faces NW and it will consistently produce 2.6 kWh plus

The later MKS models as well as the MAX actually enjoy the same battery support & even have better lithium battery support.

I would install the OGS5.6 or the OG 7.2 from Kodak. The other non Kodak branded versions are the MKS3, MKS4 & the MAX 7.2kW