Hello community,
My three 6k5 units reduce their output to 13.8 kW when feeding into the grid, which also reduces the PV generation from the two 450/200 MPPTs.
However, according to the data sheet, they should be capable of delivering 3 × 6,000 W continuous power.
According to the shop where I bought them, there is apparently a certificate for Germany that limits the output to 4.6 kW per unit > 13.8 kW.
Question: Is Victron going to make any further adjustments? It is not apparent to the average person that the output is limited by the software.
Best regards
As a retailer, we base our technical specifications on the official Victron data sheets. The MultiPlus-II 48/6k5 is specified there as having 6,000 W of continuous power. From our perspective, the fact that, in grid-connected operation, a lower output is currently available in Germany due to the applicable VDE certificate is indeed not presented particularly transparently.
We will therefore add a corresponding note to our shop. So thank you for bringing this to our attention.
The background is somewhat more specific: In the currently valid German certificate, the 6k5 is listed as a single-phase generating unit. The certificate allows several of these devices to be connected together to form a three-phase system, but only up to a maximum of 4.6 kVA per phase or 13.8 kVA for the three-phase system. That also explains the approximately 13.6 kW you measured.
For the larger MultiPlus-II 8/10/15 kVA models, there is already a separate certificate for the three-phase configuration. For the 4k5/6k5, there is currently no such certificate, at least not in Germany. It is therefore quite conceivable that Victron may publish a new or expanded certificate in the future, thereby approving a higher output in a three-phase system. Of course, we cannot promise whether or when this will happen.
In any case, the limitation is not a technical 4.5 kW limit of the device; rather, it results from the currently valid certification for parallel operation with the grid in Germany.
If the discrepancy between the 6,000 W stated in the data sheet and the output actually possible when connected to the grid bothers you, you are welcome to contact Victron directly about it. Ultimately, both the power specifications and the certificates come from Victron.
Regarding returns: The statutory right of withdrawal for consumers is generally 14 days. If the goods have already been installed or put into operation, compensation for the reduction in value may be charged. After this period, there is no right to return the goods. Victron itself does not take any devices back from us retailers at all.
PS: If the discrepancy between the 6,000 W stated in the data sheet and the output actually possible when connected to the grid bothers you, I would recommend contacting Victron directly or posting the question on the Victron forum. Developers, and occasionally even the boss himself, are active there.
I think you are likely to get the most useful and, above all, definitive answer there. Ultimately, both the power specifications and the certificates come from Victron.