Victron MultiPlus-II 48/5000/70-50 230V GX: Your versatile energy center with smart control
The Victron MultiPlus-II 48/5000/70-50 230V GX is a sophisticated and multifunctional system for energy conversion and intelligent management. This combination device combines the capabilities of a powerful 48V/5000VA inverter, an efficient 70A battery charger, and a fast 50A transfer switch. With the integrated GX component, it also offers comprehensive monitoring and control options. It is a central, reliable component for various modern energy systems, including grid-connected energy storage systems (ESS), off-grid systems, and mobile applications in vehicles and boats.
With this intelligent 3-in-1 energy center, you can enjoy the freedom to experience your usual comfort in your motorhome, live self-sufficiently away from the power grid, or rely on your home being seamlessly supplied in the event of a power failure because the system reliably switches between sources.
Core performance and specifications: The foundation for reliable energy
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Three essential functions in one device:
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Inverter: Converts the DC voltage of your 48V battery into a pure sine wave AC voltage of 230V/50Hz. This guarantees trouble-free operation even for sensitive electronics. The device delivers an impressive continuous output of 5000 VA / 4000 W at 25°C. The high peak output of 9000 W enables consumers with high inrush currents to start up without any problems.
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Charger: The integrated 70A charger efficiently charges 48V battery banks and adaptively adjusts the charging process to the battery type and condition. A wide AC input voltage range (187-265 VAC) ensures compatibility with a wide variety of external AC sources.
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Transfer switch: With a rated output of 50 A, this automatic switch ensures an extremely fast transition (<20 ms) between the AC input source (mains/generator) and inverter operation. This fast switching enables an uninterruptible power supply (UPS) for connected critical loads.
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Important performance data at a glance:
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Continuous power @ 25°C: 5000 VA / 4000 W. Provides the necessary capacity for the simultaneous operation of several standard consumers.
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Peak power: 9000 W. Can also handle demanding devices with high starting currents.
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Maximum efficiency: 96%. Reduces energy losses during conversion.
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No-load power: From as low as 2 W in search mode. Protects the battery when there is little or no load.
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Max. battery charging current: 70 A. Ensures fast and effective charging of the battery bank.
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Transfer switch rated power: 50 A. Enables easy handling of considerable loads during switching.
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Auxiliary AC output: Available, with 32 A. Ideal for connecting consumers that are to be supplied exclusively from an external power source (mains/generator).
This solid performance allows you to operate several powerful consumers at the same time, such as a coffee machine and a hair dryer in your camper, or to rely on the fact that in the event of an unexpected power failure, your critical devices such as computers or medical equipment will continue to run without interruption thanks to the lightning-fast switchover.
Advanced features: Intelligence and convenience for your energy management
In addition to its core functions, the MultiPlus-II 48/5000/70-50 230V GX offers a range of intelligent features that optimize usage and increase convenience:
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PowerControl: This feature allows you to limit the maximum power drawn from an external AC source (such as shore power or a generator). Any excess power available is used primarily to charge the battery. This prevents overloading of low-power connections.
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PowerAssist: As an extension of PowerControl, the MultiPlus-II can actively supplement the power of the AC input source with energy from the battery if the required load exceeds the available input power. This absorbs short-term load peaks and allows powerful consumers to be operated even on limited sources.
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Parallel and three-phase capability: Multiple identical devices can be connected in parallel via the VE.Bus (up to six units) to multiply the total power and charging capacity. Three units also allow the creation of a three-phase system. This offers high scalability for demanding power requirements.
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Integrated GX component: A built-in communication and control unit, similar in function to a Cerbo GX (with adapted connectivity), is installed directly in the device. It simplifies the system architecture in less complex installations.
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Local LC display: An integrated display shows important system parameters such as battery status, inverter power, and solar yield, as well as error codes directly on the device. Provides a quick and easy overview on site.
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Remote access via VRM portal: The integrated GX unit gives you access to the free Victron Remote Management (VRM) portal. This allows you to monitor, analyze, and even adjust settings for your system worldwide via the internet.
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Comprehensive system integration and control: The GX component acts as a central interface for other Victron products such as solar charge controllers (MPPTs), battery monitors (shunts), and compatible battery management systems (BMS). This enables advanced control functions such as Distributed Voltage and Current Control (DVCC).
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Remote firmware updates: Both the firmware of the GX device (Venus OS) and that of connected compatible Victron products can be updated via the VRM Portal. This ensures that your system is always up to date with the latest technology.
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Multiple communication interfaces: Equipped with relevant ports such as BMS-Can (for CAN bus-controlled batteries), USB (host connection for accessories such as VE.Direct-to-USB adapters), Ethernet (LAN connection), VE.Direct (an external port), and integrated Wi-Fi. This ensures comprehensive connectivity.
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Programmable relay: Offers flexible switching options, for example, to control a generator or for alarm functions. Enables advanced automation.
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Connection of external AC current sensors (optional): Integration of an external 100 A AC current sensor (e.g., ET112) is possible. Important for precise energy management, especially in photovoltaic (PV) ESS systems for controlling grid feed-in.
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VE.Bus port: This interface is used to communicate with other Victron VE.Bus devices for parallel/three-phase setups, monitoring, and detailed configuration using the MK3 USB interface and VEConfigure software.
Thanks to intelligent features such as PowerAssist, you can easily cope with weak shore power connections or small generators by supplementing energy from the battery, while at the same time keeping a precise overview of your entire energy system at all times via the integrated GX and the VRM portal and conveniently adjusting settings remotely.
Strategic strengths: The special added value of the MultiPlus-II GX
The Victron MultiPlus-II 48/5000/70-50 230V GX offers strategic advantages that go beyond the sum of its individual features and position it as a future-proof investment:
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Unsurpassed versatility across all applications: This device is designed to meet the demanding requirements of a wide variety of energy systems. It serves as a powerful and compliant solution for both grid-connected photovoltaic (PV) energy storage systems (ESS) and completely off-grid installations and reliable mobile energy systems. Its flexible architecture makes it the ideal central component for virtually any energy management project.
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Seamless and intelligent integration into the proven Victron ecosystem: As an integral part of the extensive Victron Energy product portfolio, the MultiPlus-II GX works perfectly with solar charge controllers, battery monitors, and other communication devices such as the Cerbo GX. The integrated GX unit enables central collection and coordination of all system data. The result is a highly intelligent, coordinated system that can be managed centrally via the powerful VRM portal.
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High compliance with relevant norms and standards – security for your investment: The device complies with important international safety and EMC standards. Particularly noteworthy is its compliance with the German VDE-AR-N 4105 for energy storage systems and other country-specific regulations. These certifications ensure legal usability in regulated markets and thus offer planning and investment security, especially for grid-connected photovoltaic systems.
This device gives you the certainty of relying on an energy center that adapts flexibly to a wide variety of situations, integrates seamlessly into the expandable Victron ecosystem, and, thanks to certifications, will also meet future requirements—for long-term planning security and maximum independence in every situation.
Areas of application: Tailor-made energy solutions for a wide range of needs
The adaptability of the MultiPlus-II 48/5000/70-50 230V GX allows it to be used flexibly in a wide range of different scenarios and applications:
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Grid-connected energy storage systems (ESS): This is one of the main areas of application. In combination with a photovoltaic system and a battery, the MultiPlus-II GX optimizes your self-consumption, stores excess solar power, and reduces your dependence on the public grid. It supports functions such as zero feed-in and provides a reliable emergency power function in the event of a grid failure. Ideal for homeowners who want to maximize their solar yield and protect themselves.
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Off-grid systems: For locations without access to the public power grid, the device, in conjunction with solar charge controllers and, if necessary, generators, enables a completely self-sufficient power supply. Provides energy independence for remote buildings, mountain huts, or self-sufficient living concepts.
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Emergency power supply / uninterruptible power supply (UPS): The very fast switchover time ensures that critical consumers connected to the main output continue to run without interruption in the event of a power failure. Guarantees security of supply for important electrical devices in households, offices, or medical facilities.
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Mobile applications in vehicles and boats: The device is ideally suited for professional use in motorhomes, expedition vehicles, or on yachts. PowerControl and PowerAssist are particularly valuable here for efficiently utilizing the often limited power of shore power connections or generators and coping with peak loads. Ensures comfort and a reliable power supply on the road, even for demanding consumers.
Experience how this system supplies your home with optimized solar self-consumption and reliable emergency power, gives you the freedom to live self-sufficiently in remote off-grid scenarios, or provides a stable and comfortable power supply at sea and on the road – a device that flexibly adapts to your personal energy needs, wherever you are.
Recommended accessories: Expand and optimize your system
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External AC current sensor: This accessory (e.g., an energy meter such as the ET112) is highly recommended, especially for grid-connected energy storage systems (ESS). It accurately measures the current flow at your home's grid connection point. This data is essential for the MultiPlus-II GX and the higher-level system to implement intelligent control strategies, such as precise control of grid feed-in (zero feed-in) or optimization of solar power self-consumption by charging only the excess energy to the battery.
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GX GSM Modem: For installations in locations without available Wi-Fi or LAN, as is often the case with off-grid systems in remote areas, this modem provides the necessary internet connection via the cellular network. By connecting to the Victron Remote Management (VRM) portal, it enables remote monitoring of the system, receipt of alarms, and even basic remote configuration, even when you are physically far away from the system.
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Digital Multi Control Panel: This optional external control panel provides a convenient way to monitor and control the MultiPlus-II GX locally. It displays important status information on a display and allows simple actions such as switching the inverter on/off or setting the maximum shore power (PowerControl). It is particularly useful if the MultiPlus-II GX itself is installed in a location that is difficult to access.
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VE.Bus Smart Dongle: This small Bluetooth adapter plugs directly into the VE.Bus port of the MultiPlus-II GX. It enables a wireless Bluetooth connection between the MultiPlus and the VictronConnect app on your smartphone or tablet. This provides a convenient and easy way to read basic system data locally and adjust some parameters via the app without having to establish a direct cable connection to the GX device.
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MK3-USB interface: This essential configuration tool is required to establish a wired connection between the MultiPlus-II GX (or a non-GX model) and a computer. With the powerful VEConfigure software on your PC, you can make detailed settings, configure wizards for special operating modes (such as ESS), and perform firmware updates that are not possible via the integrated GX interface or VictronConnect. It is essential for comprehensive setup.
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Cerbo GX: Although the MultiPlus-II GX has an integrated GX unit, the separate Cerbo GX is a significantly more powerful communication hub. It offers a much larger number and variety of connections (multiple VE.Direct, VE.Can, additional relays, inputs/outputs for fuel and temperature sensors). If you want to build a complex system with many Victron components and external sensors, the Cerbo GX is the more flexible choice. When using a Cerbo GX, the integrated GX function of the MultiPlus-II GX must be deactivated.
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VE.Direct-to-USB adapter: The integrated GX unit of the MultiPlus-II GX only has one externally accessible VE.Direct port. If you want to connect additional Victron devices with a VE.Direct interface (e.g., additional MPPT solar charge controllers or battery monitors from the BMV/SmartShunt series) to the GX unit, you will need this adapter to connect them via the USB host port of the MultiPlus-II GX. For multiple devices, multiple adapters and, if necessary, a USB hub are required.
Comparison with other models – Positioning in the Victron Energy portfolio
In order to optimally classify the Victron MultiPlus-II 48/5000/70-50 230V GX, it is helpful to compare it with relevant alternatives from the same manufacturer. This reveals the specific strengths and ideal application range of this model in the Victron Energy portfolio:
| Feature |
Victron MultiPlus-II 48/5000/70-50 230V GX |
MultiPlus-II (Non-GX) |
MultiPlus-II (Non-GX) + Cerbo GX |
Quattro (see size) |
Larger MultiPlus-II (e.g., 8kVA) |
| Integrated monitoring (GX function) |
Yes (basic functionality with limited ports) |
No |
Yes (Comprehensive functionality with many ports via separate Cerbo GX) |
No (separate Cerbo GX or other GX device required) |
No (separate Cerbo GX or other GX device required) |
| Availability of communication ports |
Limited (1x external VE.Direct, 1x USB, 1x BMS-Can/VE.Can*, Ethernet, WiFi) |
Low (mainly VE.Bus) |
Very high (multiple VE.Direct, VE.Bus, VE.Can, BMS-Can, USB, as well as special inputs for fuel/temperature sensors, additional relay outputs) |
Limited (mainly VE.Bus) |
Limited (mainly VE.Bus) |
| Maximum transfer switch rated power |
50 A |
50 |
50 A |
Typically higher (depending on specific model) |
Typically higher (e.g., 100 A for the 8 kVA models) |
| Number of AC inputs |
1 |
1 |
1 |
2 (Enables automatic switching between two AC sources, such as mains and generator) |
1 |
| Scalability through parallel operation |
Yes (Up to 6 units; configuration is complex) |
Yes (Up to 6 units; configuration is complex) |
Yes (up to 6 units; configuration is complex) |
Limited or not possible (depending on model) |
| System flexibility and expandability |
Medium (integrated GX unit offers basic functions, but port limitations restrict complex setups) |
Low (requires external GX device for monitoring/advanced control) |
Very high (Cerbo GX offers maximum connectivity and integration options) |
Medium (integration into GX ecosystem via separate GX device) |
Low (optimized as a powerful single device, less focus on parallel operation) |
| Estimated cost level |
High |
Medium |
High (similar total cost to GX model, but with more flexibility) |
Very high |
Very high |
| Ideal application |
Simple to medium-duty ESS, off-grid or mobile systems where integrated monitoring without many additional components is sufficient. Well suited for limited space. |
Systems that do not require integrated monitoring, or as a basis for a system with a separate, central GX device (e.g., Cerbo GX). |
Complex, expandable systems with many different Victron components and external sensors that require maximum flexibility in system integration. |
Systems that need to automatically manage two independent AC input sources (e.g., mains and generator). |
Applications with very high power requirements that can be covered by a single unit (>4 kVA continuous power) and/or require a transfer switch with >50 A rated power. |
* Depending on hardware revision
Frequently asked questions – answers from practice
Here you will find answers to typical questions that frequently arise in connection with the operation and installation of the MultiPlus-II 48/5000/70-50 230V GX:
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Does the device generate noise during operation? Yes, it is important to note that the device can cause audible transformer humming and fan noise, especially at higher loads. This should be taken into account when choosing the installation location, especially if the device is to be installed in living areas.
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How complex is the physical installation of the device? Assembly requires technical skill and planning. The device weighs 31 kg, which must be taken into account when mounting it. The cable entries are closed and must be opened for the respective cable diameters, which can mean a little more effort for thicker cables. Some installers also find the spring-loaded terminals for AC cabling less convenient to use than classic screw terminals.
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Can I connect several MultiPlus-II GX units together for more power? Yes, up to six identical units can be connected in parallel via the VE.Bus to increase the total power and charging capacity. Please note, however, that configuring such a parallel connection requires advanced knowledge and special Victron software (VEConfigure, VE.Bus System Configurator) as well as the MK3-USB interface. For stable operation, it is also advisable to use devices with the same hardware revision if possible.
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How many additional Victron devices can I connect directly to the integrated GX unit? The integrated GX unit offers limited connectivity compared to a dedicated Cerbo GX. It has one external VE.Direct port and one USB host port. If you want to connect more than one VE.Direct device (such as additional MPPT solar charge controllers or battery monitors), you will need VE.Direct-to-USB adapters for the USB port. If you have many devices to connect or want VE.Can connectivity (which the integrated GX port may only offer to a limited extent), a Cerbo GX is often the more flexible choice.
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What software and hardware do I need for complete configuration? For more in-depth configuration of the MultiPlus-II, especially for setting up the wizards (e.g., for ESS, parallel operation) and adjusting grid parameters, the Victron VEConfigure software (for Windows PCs) in conjunction with the MK3 USB interface is mandatory. The VictronConnect app (via integrated WiFi or optional VE.Bus Smart Dongle) and the VRM portal allow monitoring and some basic settings, but not full configuration.
For beginners: Why the MultiPlus-II GX can be the smart choice
Although the versatility of the Victron MultiPlus-II 48/5000/70-50 230V GX is designed for technically savvy users and installers, it also offers compelling advantages for beginners looking for a powerful and future-proof energy solution:
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Compact all-in-one solution: Instead of having to purchase and install separate devices for the inverter, charger, and transfer switch, the MultiPlus-II GX provides all core functions in a single housing. This greatly simplifies the system overview and installation effort.
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Reliable emergency power function: In the event of a power failure, the device automatically switches to battery operation with virtually no delay thanks to its fast transfer switch. Your most important devices continue to run without interruption and without you having to intervene – a plus in terms of safety and convenience.
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Intelligent power management in the background: Functions such as PowerAssist work intelligently in the background to make optimal use of the available external power source (e.g., from a campsite or a small generator) and supplement it with battery power if necessary. This means you don't have to worry about overloads and can use your consumers more flexibly.
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Easy overview via app: Thanks to the integrated GX unit and the connection to the VRM portal, you can conveniently monitor the status of your energy system via the VictronConnect app or a web browser on your smartphone, tablet, or computer. You always have important information such as battery level, current power, and energy flows at a glance.
Conclusion – your complete energy manager in one device
The Victron MultiPlus-II 48/5000/70-50 230V GX represents a powerful, versatile, and technologically advanced solution for your energy management. It combines the essential functions of an inverter, charger, and transfer switch with the intelligent control and monitoring of an integrated GX component. Whether for demanding ESS systems, self-sufficient off-grid systems, or reliable mobile power supply, this device provides a solid foundation for your energy independence and optimization in the Victron ecosystem.
Contact us for individual advice!
Installation and operation – tips for successful setup
Careful installation is crucial to ensure the full performance and reliability of the Victron MultiPlus-II 48/5000/70-50 230V GX.
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Planning the installation location: Take into account the weight of 31 kg for stable and secure mounting. Ensure there is sufficient space for the necessary ventilation, as the device is actively cooled. Due to the IP22 protection class, the location should be dry and protected from direct splashing water. When installing near living areas, it is advisable to take possible noise emissions (humming, fans) into account in the planning.
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Cabling: The connections for the battery (M8 bolt) and AC (screw terminals 13 mm² / 6 AWG) require professional installation. Plan the cable routing carefully, as the cable entries are closed.
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Configuration tools: For detailed initial configuration, especially of the wizards for operating modes such as ESS, a wired connection via the MK3 USB interface to a PC running the VEConfigure software is required. The integrated GX unit allows monitoring and some basic settings as well as firmware updates via VictronConnect (WLAN) and the VRM portal.
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Commissioning: Basic functionality is possible with factory settings, but configuration with VEConfigure is necessary for adaptation to specific system requirements (battery type, grid parameters, advanced functions). Regular firmware updates via VRM are recommended.
Technical data – Victron MultiPlus-II 48/5000/70-50 230V GX at a glance
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Product name: Victron MultiPlus-II 48/5000/70-50 230V
GX
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Model number:
PMP482506000
INVERTER
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DC input voltage range: 38 – 66 V (volts)
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Output voltage: 230 VAC (alternating voltage) ± 2%
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Output frequency: 50 Hz (hertz) ± 0.1% (adjustable to 60 Hz)
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Continuous output power @ 25°C: 5000 VA (volt-amperes) / 4000 W (watts)
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Continuous output power @ 40°C: 3700 W (watts)
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Continuous output power @ 65°C: 3000 W (watts)
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Max. apparent power feed: 5000 VA (volt-amperes)
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Peak power: 9000 W (watts)
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Maximum efficiency: 96%
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No-load power: 18 W (watts)
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No-load power (AES mode): 12 W (watts)
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No-load power (search mode): 2 W (watts)
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CHARGER
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AC input voltage range: 187-265 VAC (alternating current)
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AC input frequency: 45–65 Hz (hertz)
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Max. Battery charging current: 70 A (amperes) (@ ≤ 25°C)
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Charging voltage (constant voltage): 57.6 V (volts)
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Charging voltage (maintenance): 55.2 V (volts)
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Charging voltage (storage): 52.8 V (volts)
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Battery temperature sensor:
Yes
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GENERAL
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Transfer switch rated power: 50 A (amps)
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Maximum AC input current: 50 A (amps)
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Auxiliary AC output: Yes, 32 A (amperes)
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Interfaces: BMS-Can (CAN bus for battery management system), USB (Universal Serial Bus), Ethernet, VE.Direct, Wi-Fi, VE.
Bus
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External AC current sensor (optional): 100 A (amperes)
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Programmable relay: Yes (AC: 230V/4A, DC: 4A to 35VDC, 1A to 60VDC)
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VE.Bus port: Yes (for parallel/3-phase operation, monitoring, integration)
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Remote on/off:
Yes
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Operating temperature range: -40 to +65 °C (Celsius) (fan-assisted cooling)
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Humidity (non-condensing): Max
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Housing material & color: Steel, blue RAL
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Protection class: IP22 (Ingress Protection)
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Battery connection: M8 bolt
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230V AC connection: Screw terminals 13 mm² (6 AWG - American Wire Gauge)
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Weight: 31 kg (kilograms)
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Dimensions (HxWxD): 565 x 323 x 148 mm (millimeters)
