MultiPlus-II 48/5000/70-50 4000W Inverter/Charger
The MultiPlus-II fits seamlessly into all common energy storage topologies
There is no one-size-fits-all solution to energy storage. The building blocks, topology and control systems will depend on local preferences and regulations. The MultiPlus-II hardware, together with a wide range of software tools, seamlessly fits in all common topologies, shown in the pictures below.
• Will temporarily store excess solar power in the battery.
• Can be configured to operate with a PV array and a MPPT solar charge controller, or with a PV array and a PV inverter.
• Can control the power flow to and from the grid. When connected in series with the incoming power line, the internal power meter can be used. Several wired and wireless external power meter solutions are available for other configurations.
Victron MultiPlus-II 48/5000/70-50 – 230V Inverter/Charger Technical
- Cont. output power 5000 VA
- Peak power (W) 9000 W
- Charge voltage ‘absorption’ 57,6 V
- Charge voltage ‘float’ 55,2 V
- Storage mode 52,8 V
- Maximum battery charge current 70 A
- TheVictron MultiPlus-II 48/5000-70-50 5kW (48v 5000W) Solar Battery Inverter Charger (230V) comes with a 5 year factory guarantee; which can be extended to 10 years
- Inverting power from DC to AC power and charges your solar battery
- Pure sinewave output, high peak power and high efficiency. Perfect for off-grid electricity solutions.
Victron MultiPlus-II 48/5000/70-50 – 230V Inverter/Charger Overview
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). It also has all the features of the MultiGrid with built-in anti-islanding and an increasingly long list of country approvals.
Note: for a short period of time this product was called MultiGrid-II.
Power Control and Power Assist – Boosting the capacity of the grid or a generator
The MultiPlus-II 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.
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.
ESS (Energy Storage System) functionality
The MultiPlus-II is the key component in a Victron ESS system, providing the flexibility to combine with MPPT Solar Chargers or Grid-tie PV Inverters. It’s 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.
Uninterrupted AC power (UPS function)
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. 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
Monitor and control your Multi and system or systems’ locally (LAN) or remotely via the internet from anywhere in the world, using the free VRM app and free “VRM portal” website. Access can be from a phone, tablet, laptop or PC for multiple operating systems.
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.