Page 26 - WTS Catalog 2025

MultiPlus-II Inverter/Charger

120V

A MultiPlus with 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 100 A.

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.

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, split phase and three phase operation

Up to 6 Multis can operate in parallel to achieve higher power output. Six 48/3000/35 units, for example, will provide

15 kW / 18 kVA output power with 210 Amps charging capacity.

In addition to parallel connection, two units of the same model can be connected for a 240 V split phase output, and

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 per phase.

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: 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 Color Control 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.
Connection area 12/3000/120-50

Standard marine, mobile or off-grid application Grid parallel topology with MPPT solar charge controller

Loads that should shut down when AC input power is not available can The MultiPlus-II will use data from the external AC current sensor

be connected to a second output (not shown). These loads will be taken (must be ordered separately) or power meter to optimise self-

into account by the PowerControl and PowerAssist function in order to consumption and, if required, to prevent grid feed. In case of a power

limit AC input current to a safe value when AC power is available. outage, the MultiPlus-II will continue to supply the critical loads