Victron Multiplus-II 12/3000 120-50 2x120V

Original price was: $1,334.00.Current price is: $1,133.90.

This inverter/charger is recommended for use with 50A Shore Power Service.

If you have 30A Shore Power, see the Victron Multiplus-II 12/3000 120-50 120V


Add the Programming Dongle:

Victron Energy Interface MK3-USB VE.Bus to USB-C

SKU: victron-multiplusII-12-3000-2x120 Categories: ,


The MultiPlus-II 2 x120V is the perfect Inverter/Charger for an electrical upgrade on a RV, camper, or motorhome with factory installed 50A shore power.

Whether it is supplied from shore power or a generator, the MultiPlus-II 2x120V can accept and passthrough both lines of a 120/240V supply, with the capability to utilize the full 50A for charging and AC loads. When connecting to a single phase 120V supply, the L1 input of the MultiPlus-II 2x120V will accept incoming power for charging and passthrough, while combining the L1 and L2 outputs for single-phase 120V on each line. 

The MultiPlus switches to inverter operation when no AC source is available. The inverter output is also 120V single phase. In inverter mode, the MultiPlus-II 2x120V internally connects both lines L1 and L2 together to provide 120VAC to loads on either output. Therefore, in all connection circumstances, both sides of a distribution panel will be supplied with 120V. However, 240VAC is only available when the MultiPlus is supplied by a split phase 120/240VAC source. This prevents heavy loads such as water heaters or 240V air conditioners from discharging the battery.

Note: The minimum battery bank size for this inverter/charger to work properly is 400Ah.


The MultiPlus-II 2x 120V has all of the expected features of our versatile inverter/charger range, including PowerControl, PowerAssist, Input Current Limit, two AC outputs, as well as parallel and 3ph configuration for larger capacity VE.Bus systems. Suitable for LiFePO4 batteries and a variety of other battery technologies.


The MultiPlus will prevent overload of a limited AC source, such as a generator or shore power connection. First, battery charging will automatically be reduced when otherwise an overload would occur. The second level will boost the output of a generator or shore side supply with power taken from the battery.

Remote Monitoring and Control

When coupled with a GX device (e.g. Cerbo GX) you can monitor and control your Multi and system or systems’ locally (LAN) or remotely via the internet from anywhere in the world, using the VRM app and VRM portal website. Access can be from a phone, tablet, laptop or PC for multiple operating systems. There is no end to the level of control, from adjusting your Multi to auto starting a backup generator and more…

Uninterrupted AC Power

In the event of a grid failure, or when shore or generator power is disconnected, the inverter within the Multi is automatically activated and takes over the supply to the connected loads. This happens so fast (less than 20 milliseconds) that computers and other electronic equipment will continue to operate without disruption.

How to Wire an Inverter/Charger:

How Victron PowerAssist Works:

Technical Specifications (click to expand)
  • Input Voltage Range (V DC): 9.5 – 17 V
  • Output: 120V 60Hz
  • Maximum AC Input Current: 50A (each leg)
  • Cont. output power at 25ºC / 77°F (VA): 3000
  • Cont. output power at 25ºC / 77°F (W): 2400
  • Cont. output power at 40ºC / 104°F (W): 2200
  • Cont. output power at 65ºC / 150°F (W): 1700
  • Peak Power (W): 5500W

For additional Technical Specifications, please see:

Additional information

Weight 48 lbs
Dimensions 23 × 11 × 6 in

12V Battle Born LiFePO4 Batteries, None

Shore Power Amperage



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