question

fancourt avatar image
fancourt asked

Inverter RS 48/6000 Smart vs MultiPlus II 48/5000/70-50

Just trying to make sure I fully understand the benefits and rationale behind the Inverter RS/6000 Smart vs sticking with the tried-and-tested MultiPlus II.

Are there any videos or other training material I've missed explaining the reasons for the shift to HF inverters away from the old LF technology?

The Victron marketing and training material used to highlight the benefits of LF inverters over HF ones, but I haven't seen anything yet explaining why that situation has now been reversed with the introduction of the RS series?

As best I can tell the only practical benefits of choosing the "Inverter RS 48/6000 Smart" over the "MultiPlus II 48/5000/70-50 are:

- 6000VA/4800-5300W (batt voltage dependent) vs 5000VA/4000W 'continuous' @ 25 deg C
- 100A battery charger vs 70A
- 11kg vs 30kg
Am I missing anything else?
I haven't seen any explanation for why Victron have changed their tune on HF being inferior to LF inverters for reliability?
I may have missed a press release or training video, if so I'd be grateful is someone could point me to a link...

Multiplus-IIinverter rs
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1 Answer
Guy Stewart (Victron Community Manager) avatar image
Guy Stewart (Victron Community Manager) answered ·

Hi @fancourt,

Victron is not the kind of company to sit around once we have a good product.

We are constantly trying new power electronics designs, and while sad to say not all of them will make it out of the R&D lab and into production, occasionally a new design does bring something significantly new and worth putting our name to (see your list).


We now believe the new design of the RS meets the reliability standard that we set for ourselves, and that our customers expect.


The RS still has a long way to go before it will have earned the same tried and true reputation of the transformer based MultPlus. We expect most customers will continue with transformer based models for many years to come.


Building this reputation just takes time in different real world conditions. So far at least the limited number RS units in the field are doing really well (after a few early bumps along the way).


The RS design gives us new opportunities for new products that we have wanted to make for a long time, but are impractical with LF toroidal transformers (such as high power 3 phase in a single box).


Another couple of benefits for your dot point list

- RS series is quieter - there is no transformer hum.

- ability to have a 450V MPPT integrated in the Solar models (without adding size or weight).

There isn't any extra training for the Inverter RS models (yet), but I did make a training video for the MPPT RS which you might find useful - https://vimeo.com/479705077


We are also still making new transformer based models by the way, so think of it as an expansion of our potential rather than a shift in our direction.

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fancourt avatar image fancourt commented ·
Thanks Guy!
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