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Proven reliability
The full bridge plus toroidal transformer topology has proven its reliability over many years.
The inverter is short circuit proof and protected against overheating, whether due to overload or high ambient temperature.
PowerControl – Dealing with limited generator, shore side or grid power
With the Multi Control Panel a maximum generator or shore current can be set. The MultiPlus will then take account of other AC loads and use whatever
is extra for charging, thus preventing the generator or shore supply from being overloaded.
PowerAssist – Boosting the capacity of shore or generator power
Where peak power is so often required only for a limited period, the MultiPlus will make sure that insufficient shore or generator power is immediately
compensated for by power from the battery. When the load reduces, the spare power is used to recharge the battery.
High start-up power
Needed to start high inrush loads such as power converters for LED lamps, halogen lamps or electric tools.
Search Mode
When Search Mode is ‘on’, the power consumption of the inverter in no-load operation is decreased by approx. 70%. In this mode the Multi, when
operating in inverter mode, is switched off in case of no load or very low load, and switches on every two seconds for a short period. If the output current
exceeds a set level, the inverter will continue to operate. If not, the inverter will shut down again.
Programmable relay
By default, the programmable relay is set as
an alarm relay, i.e. the relay will de-energise
in the event of an alarm or a pre-alarm
(inverter almost too hot, ripple on the input
almost too high, battery voltage almost too
low).
Remote on / off / charger on
Three pole connect

DC combiner boxes are for connecting parallel PV strings into your MPPT. The box includes several features that reduces the amount of separate components you need to install.

The box offers isolation between the DC voltages that are generated by the PV modules and the solar installation allowing for safety while working or maintaining the system.
With fusing and short circuit protection the PV modules and components can operate optimally with lightning protection included. Combining multiple series strings from the PV modules the unit allows for a single parallel connection to the MPPT charge controller.
Positive and negative poles of each PV string are equipped with special fuse wire, which protects the PV string from fault. It also uses matchable fuse holder and fuse wire to reduce later maintenance cost and guarantee safety
The unit uses photovoltaic HV lightning protector to carry out protection to the positive pole-to-ground and negative pole-to-ground of bus after combination

Proven reliability
The full bridge plus toroidal transformer topology has proven its reliability over many years.
The inverter is short circuit proof and protected against overheating, whether due to overload or high ambient temperature.
PowerControl – Dealing with limited generator, shore side or grid power
With the Multi Control Panel a maximum generator or shore current can be set. The MultiPlus will then take account of other AC loads and use whatever
is extra for charging, thus preventing the generator or shore supply from being overloaded.
PowerAssist – Boosting the capacity of shore or generator power
Where peak power is so often required only for a limited period, the MultiPlus will make sure that insufficient shore or generator power is immediately
compensated for by power from the battery. When the load reduces, the spare power is used to recharge the battery.
High start-up power
Needed to start high inrush loads such as power converters for LED lamps, halogen lamps or electric tools.
Search Mode
When Search Mode is ‘on’, the power consumption of the inverter in no-load operation is decreased by approx. 70%. In this mode the Multi, when
operating in inverter mode, is switched off in case of no load or very low load, and switches on every two seconds for a short period. If the output current
exceeds a set level, the inverter will continue to operate. If not, the inverter will shut down again.
Programmable relay
By default, the programmable relay is set as
an alarm relay, i.e. the relay will de-energise
in the event of an alarm or a pre-alarm
(inverter almost too hot, ripple on the input
almost too high, battery voltage almost too
low).
Remote on / off / charger on
Three pole connect

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
currentsensor 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.
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
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: 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.

Input voltage range 180 – 265 VAC

Charge current, normal mode 12A

Charge current, NIGHT or LOW 4 / 6 / 8 A

Efficiency 94%

No load power consumption 0.5 W

Frequency 45 – 65 Hz

Number of outputs 1

Charge voltage ‘absorption’ Normal: 28,8V High: 29,4V Li-ion: 28,4V

Charge voltage ‘float’ Normal: 27,6V High: 27,6V Li-ion: 27,0V

Charge voltage ‘storage Normal: 26,4V High: 26,4V Li-ion: 27,0V

Charge algorithm 6-stage adaptive

Can be used as power supply Yes

Protection Battery reverse polarity (fuse) Output short circuit Over temperature

Operating temp. range -20 to +50°C

Humidity (non-condensing) Max 98%

ENCLOSURE

Material & Colour Aluminium (blue RAL 5012)

Battery connection Screw terminals 13 mm² / AWG6

230 V AC connection Cable of 1,5 meter with CEE 7/7 plug, BS 1363 plug (UK) or AS/NZS 3112 plug (AU/NZ)

Protection category IP22

Weight 1,3 kg

Dimensions (h x w x d) 235 x 108 x 65 mm

STANDARDS

Safety EN 60335-1, EN 60335-2-29

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

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

Automotive E4-10R

LiFePO4 chemistry is considered very safe even if
fully charged.
• Reliability – battery designed to operate in almost
any environment.
• Durability – life expectancy exceeding 10 years
at 25oC.
• Supports parallel bus bar connection.
• External BMS.
• Manufacturing plants comply with the
legislation in each country and with
international quality standards ISO9001 and
Qs9000.
• Residential, Business, Factory, Data Centres or
Telecoms Base Station backup.
• Solar, Wind or Hybrid Storage.
• Reduce Peak Usage Charges from the Grid