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Phoenix Inverter

Single Quattro for one side of split phase

Would it be feasible to add a single Quattro or Multiplus (not the 2x120v) to provide one half of a 240V split phase (North America 120/240V residential power) while taking the other phase directly from my main panel and passing it through along side?

I’d like backup/UPS for the equipment but would move lighting to the non-inverter phase. I’d also like to add a 30A 240V that wouldn’t be powered during utility outages (for car charger or brewing setup, I guess this is the trickiest part, and I could skip it).

Is there a reason it would be inadvisable to use an inverter on only one phase? If it’s okay, what extra considerations should I make?

owenfi asked

0 Answers

Inrush Amps For 12/500 Phoenix Inverter

Looking at running a small heater that pulls 10a for 1 sec when starting and then 3.5a. 350w. Would the 10a inrush trip the 12/500 inverter?

overl42 asked

0 Answers

Liontron BMS switches off when I switch on Phönix inverter

Hello to all,

I have a problem with the following combination of devices:

  • Phoenix Smart Inverter 24/3000 and
  • 2x 24V LIONTRON LiFePo 100Ah (parallel)

When I switch on the fuse of the 24 V supply from the inverter, the BMS of the Liontron batteries switches off immediately. I have found out that it is probably the capacitors of the Phoenix inverter that need too much power for the BMS of the batteries. Does anyone have a tip for me on how to solve the problem?

Is there any information on how many amps the Phoenix requires at initial start-up?

Attached is the technical data sheet of the battery.

Thank you!



xandafini asked
tozz answered ·

1 Answer

Fridge Temperature Fluctuation

Can anyone explain this?

We have 48/5000 Multiplus. We have been using it off grid with two homes which include two fridges etc. We run the usual items including computers, washing machine, dishwasher and other appliances.

A visitor in a RV with fridge plugged in to a 15 Amp outlet and was only able to achieve a fridge temperature of 6 degrees C. When unplugged from our power it rose to 11 degrees. He then relocated to an ongrid power supply and was able to achieve -2 degrees in the fridge.

Our fridges run at 4 degrees Fridge and - 18 degrees Freezer.

Any help explaining this is appreciated.

grantandaudreywatson asked
grantandaudreywatson commented ·

2 Answers

Does the MultiPlus 3 kVA Inverter/Charger allow me to set an upper limit on the wattage?

I am considering the "MultiPlus 3 kVA Inverter/Charger" for my van build.

Due to battery constraints, what I really want is a 2.5-2.7 kVA inverter.

Is it possible to limit this inverter to something less than 3kVA? A setting that can be modified?

The other inverter I am considering, a Xantrex, does support this. ("Inverter Output Power Limit" - "The wattage setting value can be adjusted by 100-watt increments. Use with Inverter Output Power Limit Timer especially when pairing with a lithium ion battery. 0.1 is equivalent to 100 watts.").

I looked all through the Victron manual, but did not see anything about this.

I was hoping to go all-Victron, but this might preclude that.


cw8 asked
tozz commented ·

4 Answers

Locked rotor amp draw, 4 ton AC unit - how large of an inverter(s) (scared to ask lol)

Hi Everyone,

I have an older Carrier Infiniity central air conditioning unit. The condenser is model

24aNA748A003. The specs for this condenser show. 104 amp locked rotor draw (240v). That's alot of power!

Can anyone comment on whether a single 15k Quattro seems likely to be able to start this thing?

I presently have a 5k Quattro which I think is too small for this. I would consider upgrading to a single 15k unit if that seems large enough.



chrisgru asked
Paul B edited ·

1 Answer

Campervan Schematics


Hi All,

I have finished my first revision of the campervan schematics, I am sure I would have forgotten a few items (such as the Dometic fridge, a shower solution etc), but this is the general installation. I wanted some people to check it over and to see if everything looks legit in terms of wiring etc. I suspect the solar wattage should be enough considering I have the DC-DC charger? Also in terms of AC power, can someone advise on a suitable distribution box that will work seamlessly with the Multiplus and the correct wire sizes for this also please?

Let me know if anything looks wrong. I plan to fit what I can and get it approved by an electrician.

campervandan asked
campervandan commented ·

3 Answers

Conjoncteur de Neutre

Bonjour, je souhaiterais savoir si l'un d'entre vous a déjà utilisé un conjoncteur de NEUTRE pour connecter la terre au système ?

En fait j'ai fabriquer une box énergie mobile qui est équipé d'un Multiplus 5kva et de batterie pylontech. Le but est d'avoir la terre et cela même si je n'ai aucune solution comme l'absence de bornier de terre ou l'impossibilité de planter un piquet de terre. Merci pour vos réponses

mobilvolts asked
Thierry Cortassa (Victron Energy Staff) answered ·

1 Answer

Inverter connection

Hi Newbie here with limited knowledge so be gentle! I have just purchased a secondhand motor home with 2 leisure batteries and the VE BMV 700 battery monitor. I have a 1500w inverters already from my old motorhome and want to connect this to my new one. My old motorhome did not have a monitor (or shunt) so the connections were straight forward - batteries in parallel and inverter positive connected to battery 1 positive and inverter negative to battery 2 negative. How to I wire my inverter with the shunt and 2 batteries? As above or does one or two connection go to the shunt? I attach some photos.

Secondly I am not sure why the BMV 700 was used given there are 2 batteries. Am I right in saying that this can only provide info on the one?




nuno-gomes asked
southsideph commented ·

1 Answer

ON/Off Grid use case


Working on proof of concept for our exhibition trailer.


Normally undertake a number of outdoor exhibitions, as these are starting again looking to a hybrid energy solution as a lot of venues a actively banning use of generators so either use provided EHU or go to alternate energy.

Using the following as a use case

Kit includes

  • 100/50 MPPT
  • 200W Solar arrays
  • Smart Shunt 500
  • Smart Battery Protect
  • Phoenix Inverter 800
  • Orion TR 12/12/30 Isolated
  • Venus

Question is around grounding.

Phoenix in the above use case is bonded to the -ve busbar I am assuming the bus bar is also grounded to the chassis to EHU power

I'm assuming the 375/800 has the earth connected to the N of the AC output by the internal jumper.


southsideph asked

0 Answers

Forgot the Victron connect bluetooth password but no PUK to reset it...


one of our clients has a 12/2000 Smart inverter. He has forgotten the buetooth password. I trşed to find the PUK code but it does not exist on the product labels (neither on the back side nor inside the inverter)

How can I obtain the PUK code. Product label is attached.



doruk-kocuk asked
Guy Stewart (Victron Community Manager) answered ·

2 Answers

Est-il possible d'utiliser des batteries Pylontech US2000 avec un Phoenix Smart 48|3000 ?


J'aimerais concevoir une installation photovoltaïque avec un convertisseur Victron Phoenix Smart 48|3000 et trois batteries Pylontech US2000 (ou deux US3000).

  1. Est-ce compatible ?
  2. Faut-il un appareil annexe pour la connexion ?
  3. Comment obtenir des infos sur les batteries (pourcentage de charge par exemple)
  4. Est-ce mieux d'utiliser 3 x US2000 ou 2 x US3000 ?
  5. Est-ce mieux d'utiliser d'autres batteries lithium ? (je suis parti sur celles-ci pour le côté pratique : empilement, câblage simple)

Je vais disposer d'environ 2000 W de panneaux solaires. Est-ce que ce dimensionnement semble suffisant ?

Merci d'avance.

eliska asked
eliska commented ·

4 Answers

Phoenix IP43 Charger Startup spike tripping circuit breaker


Sometimes when I power on the IP43 Charger (3/50A), it blows the fuse in the shore power pole. When the fuse is reset by someone of the marina, all works properly again. The unit a powering multiple lead/acid batteries.

I have read that someone else noticed a high startup consumption, but not sure he means this.

Do I have a faulty unit? Any suggestions?



alexv asked
alexv commented ·

1 Answer

My client can't make the neutral-ground connection on a 12V 1200VA Phoenix

On the 12V 1200VA inverter, there isn't the surrounded red bloc below :


Here photo of the client :



As response, Victron France said: "You have to make the connection as the manual says."

@jfeiman, ask the same question for 12V 500VA NEMA inverter 2 months ago, no answer too.
His message :

"My 12/500 Phoenix inverter also lacks the internal neutral-ground jumper. According to the manual, a GFCI outlet will not provide ground fault protection without a neutral-earth bond. When a single extension cord or other electrical device is plugged directly into the inverter, there is no load distribution center on the AC side for external neutral-earth bonding.

1) Am I correct in interpreting this to mean that an extension cord equipped with a GFCI device does not provide ground fault protection when plugged into this inverter?

2) Is there a plug-in solution for providing ground fault protection?

3) Is there a VE service document that details a procedure for bonding neutral to earth internally with this inverter?"

myshopsolaire asked
myshopsolaire commented ·

1 Answer

Phoenix Multiplus 24/3000 sinewave starts clipping at half load


I have a Phoenix Multiplus 24/3000/70 old model and when it's turned on and there is no load on the output the sinewave has a nice curve see next photo;


But when i put a load of 1600W on the output the sinewave starts clipping, see next photo;


Is this normal for a older version of this Phoenix Multiplus or is there something else wrong?

Thanks in advantage for any reaction.

topper asked
Paul B commented ·

0 Answers

Peak power/fuse sizing Phoenix 12/1200

I am sizing a fuse/wiring for this inverter. Would I be right in saying the peak power is double (so 2400W) and so my fuse size should be 200A? We are using power heavy tools so expect that they may dip into the surge capacity when spooling up. Also, is there an internal fuse built in, and if so what size?

tristanhooft asked

0 Answers

24v Phoenix 1200w - Alternating flashing LEDs - no AC output


I've had my 24v Phoenix 1200w (120v) inverter running solidly for a little less than a year now. Firmware is 1.21.

Switched it on this afternoon and there was no AC output. The red and the green LEDs flash in an alternating fashion every half a second or so. Toolkit shows this as "Calibration or Parameter Error".

I've tried checking and resaving all the parameters (all were fine) and then refreshing the firmware with A27A_01.21 but no luck.

Does anyone have insight into why this suddenly happened or what can be done to rectify this ?

Many thanks in advance,


akrolick asked

0 Answers

Is there a Victron Quattro 24/3000/120-50/50 120V

Or is there and where can I find them? Id go with the 48 volt version but that makes it difficult to charge the house bank off the engines as the dc/dc chargers are all 12/12, 12/24, 24/12...

burnscraft asked
burnscraft commented ·

1 Answer

Does the Relay Assistant in a MultiPlus Compact (aka Phoenix 12/2000) continue to work after low SOC shutdown?

Hi there,

I would like to be able to turn a MultiPlus Compact (Phoenix 12/2000) off when reaching a defined SoC. This part is easy. I would however also like to continue to use the programmable relay in the same MultiPlus to turn off DC loads via a Battery Protect when the SOC reaches a (lower) threshold. In other words, what I have in mind is turning off AC loads at say 25% SoC and turn DC loads off (relay driving a Battery Protect) at 15% SoC.

Is that possible?


jbakuwel asked
jbakuwel commented ·

0 Answers

Phoenix Inverter 12/375 - Venus OS - show AC Loads

Hello, I am new in the forum and german. so excuse my english. I have a Phoenix Inverter 12/375 with the lastest firmware 1.21 connected via to a venus os 2.65-3 on a raspberry connect to the vrm portal. Both, the portal an the venus shows the loads as a factor of 23 Watt like 23, 46, 69 and so on. Why the loads are not the right value? is that a problem by the firmware or general? Will that be fix in the future?

Thank for an answer and I wish a happy weekend.

Greats from Berlin, Germany Norman

kawanager asked
kawanager commented ·

3 Answers

Phoenix Inverter 12/375 - Venus OS - show AC Loads

Hello, I am new in the forum and german. so excuse my english. I have a Phoenix Inverter 12/375 with the lastest firmware 1.21 connected via to a venus os 2.65-3 on a raspberry connect to the vrm portal. Both, the portal an the venus shows the loads as a factor of 23 Watt like 23, 46, 69 and so on. Why the loads are not the right value? is that a problem by the firmware or general? Will that be fix in the future?

Thank for an answer and I wish a happy weekend.

Greats from Berlin, Germany Norman

kawanager asked
kawanager commented ·

2 Answers

New multiplus vs multipluc compact vs multiplus

Hello all,

I'm in a bit of a dilemma, and do not know which route to go with an inverter/charger.

I'm now confused in what to get.

Multiplus - classic, has all the nice features

Multiplus compact - going to be discontinued, what does it lack next to the multiplus?

New multiplus - this I'm not sure what features it has, I see it has different ac in/out with connectors, not hard wired inside, does it come in the box with cable? I cannot find any information or video footage of the new multiplus, looks like nobody has installed or reviewed this product...

All the help would be appreciated!

teddysx3 asked
Matthias Lange - DE answered ·

1 Answer

Multiplus Compact 12/2000/80 won't turn on

When I turn on the Multiplus Compact 12/2000/80 (on a sailboat) to invert or charge, I get one very brief flash of the yellow light and then nothing else. Connecting with VE.Bus smart dongle does not show that it's connected to the multiplus. I can connect with the MK3 and VictronConnect and it shows that the multiplus is attached but off, but when I go into Product Info, it just hangs reading configuration.

I tried cutting power to the inverter for 4+ seconds, and replacing the MEGA fuse, but neither seems to affect anything. It has a digital multi control attached, so I tried toggling the dip switches to disable it and just power on with the switch on the unit, but I see the same behavior. I've tested voltage at the inverter and it matches what I'm reading off the distribution point.

Relevant history:

This started yesterday. While running the generator to charge the batteries I decided to turn on the air con, something we've done occasionally in the past. The multiplus immediately faulted and reset. When it turned back on, the digital multi control panel said that was in bulk charging, but the batteries were not receiving any current. After toggling it off it would not turn back on.

We've been using this multiplus for over a year. A couple months ago we upgraded to Lithium batteries. We leave the inverter on 24/7 now, so we're definitely taxing it more. We usually charge from solar, so we've only a once or twice used it to charge from generator since upgrading to lithium (mostly to test that we had it configured right, and we ran the air con then too).

A week or so ago we were pushing the inverter so hard that we burned up the internal MEGA fuse. I presume the 2000w inverter uses a 175A fuse, but I only have 100A spares at the moment, so that's what I replaced it with for now. I tried swapping it out with a fresh one after our incident yesterday, but still no luck.

Any advice? Did I kill my Multiplus?

bkeepers asked
bkeepers edited ·

2 Answers

Seeking Brighton Victron engineer to trouble shoot Multi Plus Compact Inverter issues

Hi all,

I have a Victron Multi Plus Inverter that is three years old and was installed professionally in my campervan. The red alarm is consistently on. No battery problems (Voltage is 13.5 and it can power my fridge and fan).

I am looking for a Victron engineer to help me troubleshoot ASAP. Does anyone know of anyone in Brighton / Sussex / Surrey please?

Many thanks indeed

abbie-clare asked

0 Answers

Multiplus 24/3000/70-50 default low voltage disconnect

Hello, i have a EasySolar 24/3000/70-50 wich basically has a multiplus inside. I use it with a lifepo4 battery. I never run it so low for the inverter to trigger a disconnect, but i'm curious to know what is the default battery low voltage disconnect on the multiplus 24/3000, does anyone know?

Thank you :)

buryck asked
buryck commented ·

1 Answer

The Best Battery Protection Equipment

I have a Multiples inverter/charger. I use it to charge my three parallel strings of 24 volt Trojan batteries. When setting up the inverter's DC cut-off voltage, pre-alarm voltage, etc., I used the the SOC voltages given by the battery manufacturer. Obviously these voltages are open circuit voltages. My question is, is the inverter capable of compensating for the difference in open-circuit voltage and the voltage under load/charge when deciding, for instance, that the battery's SOC is where it should sound the pre-alarm or cut-off power?

What is the best way to go about protecting my batteries against low discharge. I would like to consider all options and know about their pros and cons. The batteries are also being charged from a small array of solar panel using the Victron MPPT charge controller. Obviously right now the inverter/charger doesn't know that the batteries are being charged from solar as well, and if possible, I would like to interconnect the two so that somehow I can maximize my utilization of solar power by giving priority to the the solar charger.

Thank you in advance.

i-jaghoori asked
i-jaghoori answered ·

2 Answers

Phoenix Smart IP43 Charger 12V/30A 1+1 outputs PSC123051085

If you use this on a system that has the option of switching the charging source to both battery banks will this cause a issue with the unit?

andrew2200 asked

0 Answers

Phoenix 12/1200 Inverter won't restart

I have a Phoenix 12/1200 inverter connected to an off-grid solar system that also has a Smart Solar MPPT charge controller as the only charge source. The battery bank is LiFEPO4. The inverter settings are as follows:
- Dynamic cut-off: Disabled
- Low battery shut down: 12.75V
- Low battery restart & alarm: 13.75V
- Charge detect: 14.2V

The inverter shuts down reliably at low voltage, but rarely turns on at the restart voltage. Low voltage warnings appear in the app even when the voltage is much higher than that restart voltage setting (as the solar-based charge builds throughout the day). When I manually restart the inverter (when prompted, after changing settings in the app) it does restart successfully. Any ideas on why it won't restart on its own reliably?

falconater asked

0 Answers

Multigrid 48/3000 inverter priority ?

I have to change my current setup from ESS "feed in excess power" to "island mode / inverter priority" as feed-in is no longer tolerated by grid supplier.

As far as I understood the deprecated "self consumption hub 2" with "prevent feedback to grid" is the only way to control the power of non Fronius PV inverters, connected to ACout, by shifting frequency. ESS does support Fronius only - correct? My Inverter (3,5kWp) doesn't allow true power regulation, but as a workaround I can at least switch it off, by setting the upper frequency limit.

I understand this is not the best setup but I need a solution asap.

I plan to connect the loads to ACout1. Average load is 0.5kW, usually not exceeding 3kW.
In case load increases to maybe 4.5kW I hope the "Grid Assist", properly set, will handle it.
Battery is LG Chem 6.5

In case the Inverter fails I'd like to have th eoption to manually switch my L1 loads to the grid

Please let me know your thoughts


I skip all the fuses and wiring details, just the principle


vicky asked
vicky edited ·

2 Answers


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