We want to use the Multi RS Solar 48/6000 with aiko gen3 475Wp panels, which have a Vmp of 34.1V. When using 4 panels this makes 136.4 v and 1900Wp, thus 13.92A. The Multi RS solar has a Maximum operational PV input current limit of 12 A. Will this be a problem? Even with more panels the 13.92A will not change…
Seem that the pv voltage is a bit low. Mppt has a starting voltage from 120V.
Mppr limit the current to 12A..
You could calculate your pv field with:
Even with 6 panels the 13.92 A will not change.. will it damage the multi RS
No, the Multi RS will limit the current to 12A only…
You are very close to the starting voltage. Could work, could not work….
I always go as high as possible
Will it really limit? According to the training video in the pro portal it will damage the rs multi solar. Both mppt calculator and click and design accept the config.
In reality, according with the firmware, it will start tracking at about 90V. So, with 130V will be OK.
But the close to the internal HV DC bus voltage (minus a couple of tenths) , the easy on the MPPT to work efficiently. Ideally about 350V.
My biggedt concern are the 13.92 A which are over the maximum of 12A. According to Victron trsining video that will void warranty. So not sure if 13.92A will be cut off at 12A or blow the inverter?
You should also pay attention to the short circuit current. The MPPT is handling up to that current, even in reverse polarity.
Short circuit is fine, below the 16A, i am more worried about those 12A mppt limit. A limit or a cut-off? Not clear at all
And these are also designed by Victron… I suppose they know what they are recommending…
Maybe forum search facility could shed some light? 
Seem to remember a topic a few days ago talking about the same thing…
I searched the forum before posting, and there is no clear answer whether the 3000W and 12 A are cut-off or limits beyond the multi RS will be damaged. The training video is also ambiguous…
Read multi rs 6000 manual: 7.8.8, ‘PV voltage too high’:
‘ If pv voltage is too high solar charging will stop with error#33’
‘If PV voltage is way too high it may damage the unit’
Pv current is protected by a fuse, short overload is possible
I don’t know the value of the fuse, amps or acting.
I have pv panels connected 6 of them with a 14.4 Amp rating.
works perfectly, the mppt can only use 12amps from the panels, even if the panels is capable of delivering 20 amps, the mppt can only request 12 amps.
you are safe. Your panels does not push current into the mppt, all the potential current stays in the pv panels until the mppt request current to flow and it is firmware limited to only request upto 12 Amps
do not under any circumstance exceed the voltage limit of the mppt, ever.
All is very confusing. According to my last mail I received from Victron, it will not work, dammage the inverter and void warranty. Is there a setting to limit to 12A?
For quite a while the current limit in the datasheet was 13A, Victron decreased it on their website to 12A in the datasheet and manual. I’ve read several posts where people described that the Multi RS Solar 48/6000 can handle 12.9A at max.
Can you confirm it is actually just 12A (12.0 or 11.9), or is it just a rounding to 12A, because it is a 12.9A, which is below 13A?
For me this information is important, because my panals are 13.44A and a maximum of 12A means a loss of over 10% in worst case.
I can confirm that it is 12A (the latest english datasheet also says 12A). Its a strange limitation as many Panels can deliver more than the 12 A. I want to use the Aiko Gen3 475Wp panels and they have a Imp of 13.94 A (this is independant of how many panels you use. Now in real life, does this power get to the inverter? Is it the panel that delivers or the inverter that takes 12A? According to Victron, it cannot be done and will damage the inverter.
Then don’t do it. To be sure and safe.
Others will do it, because they like to live dangerously… 
Can you confirm it by real testing scenarios or do you just confirm that it is written in the datasheet?
The 12A are confirmed in a mail from Victron. What is not confirmed is, what really happens? Will the multi rs not draw more than 12A or if the panels provide more than 12A it will blow the inverter?
In the multi RS both mppt are protected with a small fuse, to much voltage from the panels is also protected, only way too much voltage will damage the unit.
I don’t’ know the amps of the fuse.