Victron Energy MultiPlus-II 48/5000 70-95 120V Inverter/Charger for Off-Grid and Grid-Tied Systems

MultiPlus-II 48/5000 70-95 120V

The MultiPlus-II is a multifunctional inverter/charger with all the features of the MultiPlus, plus an external current sensor option that extends the PowerControl and PowerAssist function to 100A.

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 for 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 240V split phase output, and three units of the same model can be configured for three-phase output. But thats 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, and 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.

Specifications:

• PowerControl PowerAssist: Yes


• Transfer Switch: 95A


• Maximum AC Input Current: 95A

Inverter Specifications:

• DC Input Voltage Range: 39 -66 V


• Output: Output Voltage 120 VAC 2% / Frequency 60 Hz 0,1% (1)


• Continuous Output Power at 25C (3): 5000 VA


• Continuous Output Power at 25C: 4000 W


• Continuous Output Power at 40C: 3700 W


• Continuous Output Power at 65C: 3000 W


• Peak Power: 9000 W


• Maximum Efficiency: 96%


• Zero Load Power: 15 W


• Zero Load Power in AES Mode: 10 W


• Zero Load Power in Search Mode: 3 W

Charger Specifications:

• AC Input: Input Voltage Range 90-140 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 (4): 70 A


• Battery Temperature Sensor: Yes

General Specifications:

• Auxiliary Output: Yes (42 A)


• External AC Current Sensor (optional): 100 A


• Programmable Relay (5): Yes


• Protection: a g


• VE.Bus Communication Port: For parallel, split phase, and three phase operation, remote monitoring and system integration


• General Purpose Com. Port: Yes, 2x


• Remote On-Off: Yes


• Operating Temperature Range: -40 to +65C (-40 150 F) (fan-assisted cooling)


• Humidity (Non-Condensing): Max 95%

Enclosure Specifications:

• Material Color: Steel, blue RAL 5012


• Protection Category: IP22


• Battery-Connection: M8 bolts


• 120 V AC-Connection: Screw terminals 35 mm (2 AWG)


• Weight: 32 kg / 71 lb.


• Dimensions (hxwxd): (mm) 676 x 330 x 164 / (inch) 26.6 x 13.0 x 6.5

Standards:

• Listings: UL1741 pending


• Safety: EN-IEC 60335-1, EN-IEC 60335-2-29, CSA 22.2 107.1-16


• Emission, Immunity: EN 55014-1, EN 55014-2, EN-IEC 61000-3-2, EN-IEC 61000-3-3, EC 61000-6-1, IEC 61000-6-2, IEC 61000-6-3

*Note: For a short period of time this product was called MultiGrid-II

The Victron Energy MultiPlus-II 48/5000 70-95 120V is a versatile inverter/charger designed for advanced off-grid, grid-connected, and hybrid energy systems. It combines high-performance power conversion with intelligent features such as PowerControl and PowerAssist, enabling users to maximize their power sources while protecting the grid or generator from overloads. The unit's external current sensor option extends the PowerControl and PowerAssist capabilities to 100A, allowing for greater flexibility in managing electrical loads and ensuring reliable system operation. This makes it an ideal solution for applications requiring seamless power management, such as remote cabins, RVs, or backup systems where maintaining continuous power is critical.

Equipped with two AC outputs, the MultiPlus-II ensures uninterrupted power supply during grid outages with its no-break transfer switch that activates in less than 20 milliseconds. The primary output supplies critical loads during power failures, while the second output can be used for non-essential loads that should not draw from the battery, such as water heaters. This dual-output design allows for efficient load management and prevents unnecessary battery drain. The unit's capacity to operate in parallel, split-phase, or three-phase configurations means it can deliver virtually unlimited power by combining multiple units, making it suitable for larger installations or commercial applications.

Monitoring and control are streamlined through VEConfigure software, enabling quick system setup and adjustments. Additional remote management options include compatibility with the Venus GX, Color Control GX, and other GX products, facilitating internet-based remote monitoring and system configuration via VRM (Victron Remote Management). The MultiPlus-II supports various communication protocols, ensuring seamless integration into complex energy systems. Built with a rugged steel enclosure and IP22 rating, it is designed for durability in demanding environments, with a weight of approximately 71 pounds and a compact footprint for its power capacity. Its advanced features, high efficiency (up to 96%), and flexible installation options make the Victron MultiPlus-II 48/5000 70-95 120V an essential component for reliable, scalable, and efficient power systems.

For detailed installation, operation, and maintenance instructions, users can consult the official manual available online. The device complies with international safety and emission standards, ensuring safe operation in a variety of settings. Whether powering off-grid homes, remote communication stations, or providing backup power for critical infrastructure, the Victron MultiPlus-II delivers dependable performance and advanced features to meet a wide range of energy needs.

Features:

• PowerControl and PowerAssist: Extends to 100A with external current sensor for enhanced load management

• Two AC Outputs: No-break primary output for seamless power transfer, second output for non-critical loads

• Parallel, Split Phase, and Three Phase Operation: Enables scalable power solutions up to 15 kW / 18 kVA

• Fast Transfer Switch: Transfers load in less than 20 milliseconds during grid or power failure

• Remote Monitoring and Control: Compatible with GX devices and VRM platform for remote system management

• High Efficiency: Up to 96% for optimal energy utilization

• Built-in Safety and Protection: Complies with international safety standards including UL1741 pending

• Robust Enclosure: Steel construction with IP22 protection rating for durability

• Flexible System Configuration: Supports multiple units for increased power and complex phase configurations

• Versatile Compatibility: Suitable for off-grid, grid-tied PV systems, and hybrid energy solutions