An Inverter/Charger with device networking built-in, the MultiPlus-II GX communicates with a solar charger, batteries, and other devices to control a grid-connected, off-grid, or remote power installation. .

Victron MultiPlus-II GX Inverter/Charger

Available in 3000VA or 5000VA

Inverter & Charger In One Unit

Capable of parallel operation for increased power output, or battery charge-rates, the MultiPlus-II GX can also be configured for three-phase supply.

The MultiPlus-II combines the functions of the MultiPlus and the MultiGrid. It has all the features of the MultiPlus, plus an external current transformer option to implement PowerControl and PowerAssist and to optimize self-consumption with external current sensing (max. 32A). The Victron MultiPlus-II GX adds device networking and monitoring to all of the features of the MultiPlus-II.

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Telephone: 0333 090 4007

For more information about this product, to check delivery times or to find out about having this product installed please give us a call on the number above or please drop us an email at

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Victron MultiPlus-II GX 3000VA inverter/charger
Victron MultiPlus-II GX 5000VA inverter/charger

Installation Service Available:

Solar Carports and Canopies Installed Across the UK
Solar Panels & EV Chargers Installed Across South-West England.
For an informal chat or a formal quote please do contact us.
ZERO RATED VAT FOR DOMESTIC INSTALLATIONS: In Great Britain (England, Scotland, and Wales), from 1st April 2022 up to and including 31st March 2027, solar panels and several other energy-saving material installations are temporarily zero-rated for VAT. Please note, this zero rate only applies to installation in residential properties.
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The Victon MultiPlus-II combines the functions of the MultiPlus and the MultiGrid.

Victron MultiPlus-II GX Inverter/Charger

Incorporating all of the features of the MultiPlus with the addition of an optional current transformer to implement PowerControl and PowerAssist optimising self-consumption with external current sensing (max. 32A).

It also has all the features of the MultiGrid with integrated anti-islanding and an increasingly long list of country approvals., including G98 & G99 for the UK (48/3000 and 48/5000 models only).

Product Code:

Victron MultiPlus-II GX Inverter/Charger

A MultiPlus, plus ESS (Energy Storage System) functionality

The MultiPlus-II is a multifunctional inverter/charger with all the features of the MultiPlus, plus an external current sensor option which extends the PowerControl and PowerAssist function to 50A resp. 100A. The MultiPlus-II is ideally suited for professional marine, yachting, vehicle and land based off-grid applications.  It also has built-in anti-islanding functionality, and an increasingly long list of country approvals for ESS application.  Several system configurations are possible. For more detailed information see the ESS Design and configuration manual.
PowerControl and PowerAssist – Boosting the capacity of the grid or a generator.

A maximum grid or generator current can be set. The MultiPlus-II will then take account of other AC loads and use whatever is extra for battery charging, thus preventing the generator or grid from being overloaded (PowerControl function). PowerAssist takes the principle of PowerControl to a further dimension. Where peak power is so often required only for a limited period, the MultiPlus-II will compensate insufficient generator, shore or grid power with power from the battery.  When the load reduces, the spare power is used to recharge the battery.

A MultiPlus-II with LCD and GX functionality
The MultiPlus-II GX integrates a MultiPlus-II inverter/charger and a GX device with a 2 x 16 character display.

Display and Wi-Fi
The display reads battery, inverter and solar charge controller parameters. The same parameters can be accessed with a smartphone or other Wi-Fi enabled device.

GX device
The integrated GX device includes:
• A VE.Can interface. This can be used to connect to Victron VE.Can devices (eg VE.Can MPPTs), or the port can be reconfigured via the Remote Console for use with a compatible CAN-bus Li-ion Battery.
• A USB port.
• A Ethernet port.
• A VE.Direct port.

The MultiPlus-II GX is intended for applications where additional interfacing with other products and/or remote monitoring is required, such as on-grid or off-grid energy storage systems and certain mobile applications. Parallel and three phase operation Only one GX unit is needed in case of Parallel and three phase operation.

Solar energy: AC power available even during a grid failure.
The MultiPlus-II can be used in off grid as well as grid connected PV and other alternative energy systems. It is compatible with both solar charger controllers and grid-tie inverters.

Two AC Outputs
The main output has no break functionality. The MultiPlus-II takes over the supply to the connected loads in the event of a grid failure or when shore/generator power is disconnected. This happens so fast (less than 20 milliseconds) that computers and other electronic equipment will continue to operate without disruption.  The second output is live only when AC is available on the input of the MultiPlus-II. Loads that should not discharge the battery, like a water heater for example, can be connected to this output. 

Virtually unlimited power
Thanks to parallel and three phase operation (not available for the 8k and 10k models) Up to 6 Multis can operate in parallel to achieve higher power output. Six 48/5000/70 units, for example, will provide 25 kW / 30 kVA output power with 420 Amps charging capacity.  In addition to parallel connection, three units of the same model can be configured for three phase output. But that’s not all: up to 6 sets of three units can be parallel connected for a 75 kW / 90 kVA inverter and more than 1200 Amps charging capacity.

On-site system configuring, monitoring and control
Settings can be changed in a matter of minutes with VEConfigure software (computer or laptop and MK3-USB interface needed).  Several monitoring and control options are available: Cerbo GX, Color Control GX, Venus GX, Octo GX, CANvu GX, laptop, computer, Bluetooth (with the optional VE.Bus Smart dongle), Battery Monitor, Digital Multi Control Panel.

Remote configuring and monitoring
Install a Cerbo GX or other GX product to connect to the internet.
Operational data can be stored and displayed on our VRM (Victron Remote Management) website, free of charge.
When connected to the internet, systems can be accessed remotely, and settings can be changed.

Solar Panel and EV charger installation across south-west UK

Installation Service

available across the south-west

KaraSolar can offer a complete installation and maintenance service for Solar PV Systems, EV Chargers, Wind Turbines and Solar Carports. We can supply and install all that is required for on/off-grid systems and from small domestic systems to large commercial solar generation projects.

Our professional, polite, friendly and helpful team can work with you to ensure you not only get the system to match your exact requirements but that every step of getting your system installed is monitored and cared for by your own project manager. For an informal chat or a formal quote please do get in touch.

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Victron MultiPlus-II GX Inverter/Charger






Material & Colour

Steel, blue RAL 5012

Protection category



M8 bolts

230 V AC-connection

Screw terminals 13 mm² (6 AWG)

















Electrical Data:

Example specs, for full details of inverter models in this range please refer to the product datasheet (pdf).




PowerControl & PowerAssist


Transfer switch

32 A

50 A

Maximum AC input current

32 A

50 A



DC Input voltage range

38 – 66V


Output voltage: 230 VAC ± 2% Frequency: 50 Hz ± 0,1%

Maximum feed-in power

3000 VA

5000 VA

Maximum efficiency





AC Input

Input voltage range: 187-265 VAC Input frequency: 45 – 65 Hz

Charge voltage 'absorption'

57.6 V

Charge voltage 'float'

55.2 V

Storage mode

52.8 V

Maximum battery charge current

35 A

50 A

Battery temperature sensor






Auxiliary output

Yes (32A)

External AC current sensor (optional)



Programmable relay



a – g

VE.Bus communication port

For parallel and three phase operation,
remote monitoring and system integration

General purpose com. port

Yes, 2x

Remote on-off


Operating temperature range

-40 to +65°C (fan assisted cooling)

Humidity (non-condensing)

max 95%

Standards & Warranty:


EN-IEC 60335-1, EN-IEC 60335-2-29, EN-IEC 62109-1, EN-IEC 62109-2

Emission, Immunity

EN 55014-1, EN 55014-2 EN-IEC 61000-3-2, EN-IEC 61000-3-3 IEC 61000-6-1, IEC 61000-6-2, IEC 61000-6-3

Uninterruptible power supply

IEC 62040-1


Victron Energy offers 5 years standard warranty on power products. This is upgradable to 10 years by an additional 10% of the initial investment.

Download Product Datasheet

Victron's Warranty and Global Support

Victron Energy offers 5 years standard warranty on power products*. This is upgradable to 10 years by an additional 10% of the initial investment.

After decades of mastering power challenges with innovation, Victron know how to create a wide range of robust connected products that keep performing, even in the harshest of climates. This combined with their standard 5 year warranty will provide peace of mind for years to come. And if things go wrong, be assured that our fast and fair repair services offered through our worldwide network of dealers are by your side.






Victron MultiPlus-II GX Inverter/Charger

Product Code:

Solar Carports & Canopies:

KARASOLAR can supply and install modular car parking solar carports and canopies. Our solar canopies can include Rolec EV Charging and/or BYD Battery Storage if required.
Our car parking systems are totally modular, you can connect as many units together as you wish.

Offer EV Charging From Your Carpark:

Earn extra income from your car park by offering pay-to-charge or offer your customers and visitors free charging.

If you would like to discuss how KARASOLAR can help your home, your company or your car park please do get in touch.