Hi Victron team
can you please provide the efficiency curve for the Multiplus-II 6k5 ( and 4k5 )
- AC–> DC
- DC –> AC
- temperature degradation
By the way , is this also available for :
Multi RS Solar 48/6000
And what about : Multi HS 19 , Multiplus-CL
I guess for the “classic” MultiPlus it will be almost the same as shown here:
Not sure if there is a similar curve available for the RS models.
The HS19 isn’t finished yet.
I have the same question
The new 4k5 and 6k5 has a new internal design and is more efficient and less noise according
I have a Multiplus II 48/3000 and I want to upgrade to a new Multiplus II
Hi Matthias,
thanks for sharing the curves for the well known 48/5000.
I knew this thread already, it is the reason for my question to ask for sharing the data of new models.
Background:
I’d like to optimise my system so I need to know the exact efficency.
Conneting panels by using
Microinverter and 230V AC
or Victron MPPT’s with 48V DC and then select which cable diameter ?
What is the best economic solution
Hi there, I’m also curious about the efficiency at low power levels for the new 4k5 model. Standby-loss at home is less than 100 W at night and most inverters have terrible efficiencies at low power. Growatt for example just makes me cry at low power.
Multiplus-II 48/5000 efficiency curve - VictronEnergy The DC-AC conversion at 200 W looks good following Raphael’s measurements for the old 5000 model. It would be great if the 4500 brings further improvements on the low end.
If we can trust the Victron datasheet the new 4k5 and 6k5 are definitely worst for idle consumption than the “old” 3k/5k parts:
The maximum efficiency is the same (95% for the smaller 3k/4k5 and 96% for the 5k/6k5), but the zero load power is much higher:
3k zero load power = 11W
4k5 zero load power = 20W
5k zero load power = 18W
6k5 zero load power = 28W
If you compare a 48/3000 to a 48/4k5 then thats an unfair comparison. The 48/3000 is rated at 2400W while the 4k5 is rated at 4500W. The older units used their kVA rating in the name.
A better comparison would be 48/5000 versus 48/4k5, since then you compare 4000W to 4500W.
It’s rated at 4000W.
Ok so just compare the 4k5 with the 5k:
4k5 zero load power = 20W (max efficiency 95%)
5k zero load power = 18W (max efficiency 96%)
With the “old” 5k you get more power, better efficiency and lower zero load power. From an efficiency point of view the choice is simple.
Thats the point, you dont. 5kVA is not 5kW
And i thought they now name them after the kW rating, but apparently its a 2h limit…
in inverter mode they have the same power: 4kW at 25°C, but in charge mode the the 5k has much more power: 70A vs 55A at 25°C.