Victron Energy MultiPlus 48/5000/70-100 VE.Bus Inverter Charger 230V – PMP485021010

Product Overview

The Victron Energy MultiPlus 48/5000/70-100 VE.Bus (PMP485021010) is a powerful, integrated inverter and battery charger designed for professional 48V energy systems. Combining a 5000VA pure sine wave inverter, a 70A battery charger and a 100A AC transfer switch in one unit, it provides a comprehensive power management solution for off-grid installations, marine systems, backup power and renewable energy storage.

The MultiPlus converts 48V DC battery power into 230V AC electricity to operate compatible appliances and electrical equipment. When mains electricity or a generator is available, the integrated charger can recharge the battery bank while the transfer switch manages the supply to connected AC loads.

Victron Energy's advanced PowerControl and PowerAssist technologies help manage limited AC input capacity. PowerControl limits the current drawn from an external supply, while PowerAssist can supplement that supply with battery power when demand temporarily exceeds the available input capacity.

With two AC outputs, VE.Bus communication and support for compatible parallel and three-phase configurations, the MultiPlus 48/5000/70-100 is an excellent choice for demanding standalone and backup power installations.

Key Features and Benefits

The Victron Energy MultiPlus 48/5000/70-100 combines inverter, battery charging and AC transfer functions in a single integrated unit. Its pure sine wave inverter delivers 230V AC, with a continuous apparent power rating of 5000VA and continuous active power of 4000W at 25°C. A peak power capability of 10,000W helps accommodate certain short-duration starting surges.

The integrated 70A battery charger supports controlled recharging of compatible 48V battery banks. The 100A AC transfer switch manages the changeover between a suitable external AC supply and inverter operation.

PowerControl allows the AC input current limit to be configured to suit the available supply, while PowerAssist can supplement a limited mains, generator or shore power connection using battery energy when additional power is required. UPS functionality helps compatible equipment continue operating through brief interruptions to the external AC supply.

The MultiPlus features two AC outputs, allowing different loads to be prioritised according to the installation's requirements. It also includes VE.Bus communication, a programmable relay, remote on/off control and a supplied battery temperature sensor. Compatible units can be configured for parallel or three-phase operation when additional capacity or a suitable system arrangement is required.

Technical Specifications

Manufacturer: Victron Energy. Product range: MultiPlus inverter/charger. Model: MultiPlus 48/5000/70-100. Manufacturer part number: PMP485021010. Product type: Combined inverter, battery charger and AC transfer switch.

The nominal battery voltage is 48V DC, with a DC input voltage range of 38–66V DC. The AC output voltage is 230V AC ±2%, with a standard output frequency of 50Hz ±0.1%, adjustable to 60Hz.

The inverter has a continuous apparent power rating of 5000VA and a continuous active power rating of 4000W at 25°C. Continuous active power is rated at 3700W at 40°C and 3000W at 65°C. Peak power is 10,000W, and maximum inverter efficiency is approximately 95%.

Typical power consumption is approximately 35W at no load, 30W in AES mode and 15W in search mode. The AC input voltage range is 187–265V AC, with an input frequency range of 45–65Hz.

The integrated battery charger provides a maximum charging current of 70A. The specified battery charging voltages are 57.6V DC for absorption, 55.2V DC for float and 52.8V DC for storage. Charging parameters should be configured to suit the battery chemistry and manufacturer's recommendations.

The maximum AC transfer current is 100A. The auxiliary AC output supports loads up to 50A when an external AC supply is present, subject to the installation and operating conditions. Communication is provided through the VE.Bus interface. The unit also supports remote on/off control and includes a programmable relay and battery temperature sensor.

The enclosure has an IP21 protection rating. The specified operating temperature range is -40°C to +65°C, with output derating at higher temperatures. Approximate dimensions are 444 × 328 × 240mm (H × W × D), and the unit weighs approximately 30kg. It is designed for stationary installations or suitably secured mobile installations.

Specifications should be checked against the applicable manufacturer documentation before installation, particularly when designing systems with high current demands or specific battery charging requirements.

Usage and Applications

The Victron MultiPlus 48/5000/70-100 is designed for installations requiring substantial inverter output, integrated battery charging and automatic management of an external AC supply. Its 4000W continuous active power rating at 25°C makes it suitable for a wide range of electrical loads when correctly matched to the battery bank and installation.

In off-grid solar power systems, the MultiPlus converts stored 48V battery energy into 230V AC electricity while allowing the battery bank to be recharged from a compatible mains or generator supply. This makes it suitable for standalone energy systems where reliable AC power is required.

For residential backup power, the MultiPlus can supply selected household circuits during a mains interruption, subject to the system design and available battery capacity. Its automatic transfer functionality helps maintain power to compatible equipment when the external supply is lost.

In marine and boating installations, the unit can provide AC power from a 48V battery bank and recharge batteries from a suitable shore power connection or generator. It can also form part of larger commercial energy systems, renewable energy storage installations and remote properties where grid electricity is unavailable or limited.

The MultiPlus may also support workshops and specialist equipment when the electrical load falls within the inverter's continuous power and surge limits. Its 10,000W peak power rating helps accommodate certain short-duration startup loads, although actual performance depends on load characteristics, battery capability and operating conditions.

Pure Sine Wave Inverter Technology

The integrated inverter converts 48V DC battery energy into 230V AC electricity using pure sine wave technology. This provides a stable AC waveform suitable for compatible household appliances, electronic equipment and professional electrical installations.

The inverter is rated at 5000VA apparent power and 4000W continuous active power at 25°C. When sizing a system, it is important to consider both the power factor and the startup current of connected equipment. Appliances with high starting demands may require additional consideration even when their normal running consumption is within the inverter's rating.

Integrated 70A Battery Charger

The built-in adaptive battery charger delivers up to 70A to a compatible 48V battery bank under specified operating conditions. It is designed to recharge batteries when mains or generator power is available.

The charger uses configurable charging stages, including absorption, float and storage modes. Correct charging voltages and settings are essential for battery performance, reliability and service life.

For lithium battery installations, confirm compatibility with the battery manufacturer's charging requirements and ensure that the battery management system and charging configuration are suitable for the installation.

100A Automatic AC Transfer Switch and UPS Functionality

The integrated 100A transfer switch manages the connection between an external AC supply and the inverter system. When a suitable mains or generator supply is available, AC power can be passed through to connected loads. If the external supply fails or is disconnected, the inverter can take over supplying the main output, subject to system configuration and available battery energy.

The main output provides UPS functionality, with a typical transfer time of less than 20 milliseconds. This can help compatible computers and electronic equipment continue operating through brief supply interruptions. However, uninterrupted operation cannot be guaranteed for every device or installation.

The 100A transfer switch rating refers to the specified AC transfer capacity. It does not mean that the inverter can continuously deliver 100A from the battery. Inverter output remains limited by its rated power, battery capability and operating conditions.

PowerControl and PowerAssist

PowerControl allows the MultiPlus to limit the current drawn from an external AC source to a configured maximum. This is particularly useful when operating from a generator, shore power connection or other limited-capacity electrical supply.

PowerAssist supplements an external AC supply with energy from the battery when temporary demand exceeds the available input capacity. This helps support higher short-term loads within the capabilities of the inverter and battery system.

Together, these technologies help manage restricted supply capacity and reduce the risk of overloading the external power source. They are particularly valuable in marine installations, off-grid systems and properties where the available AC supply is limited.

Dual AC Outputs

The MultiPlus includes two AC outputs for different load priorities. The main output supports inverter operation when external AC power is unavailable, allowing designated loads to continue receiving power from the battery.

The auxiliary output is available only when an external AC supply is present. It can therefore be used for equipment that should not discharge the battery during a power interruption.

This arrangement helps prioritise essential equipment and manage battery energy more effectively. Auxiliary loads must remain within the specified output rating and the requirements of the overall electrical installation.

VE.Bus Communication and System Expansion

The VE.Bus communication interface allows the MultiPlus to integrate with compatible Victron Energy monitoring, configuration and control equipment.

Multiple compatible units can be configured for parallel operation to increase available capacity. Supported system configurations can also provide three-phase AC power for suitable installations. Additional equipment and professional configuration may be required, depending on the intended system design.

Battery Temperature Monitoring and Protection

The supplied battery temperature sensor supports temperature-related charging compensation where applicable and correctly configured. The MultiPlus also incorporates protection against specified operating faults, including overload, short circuit and excessive battery voltage or temperature.

Correct battery protection, ventilation, cabling and fusing remain essential for safe and reliable operation. Battery charging settings, cable sizing and protective devices must be selected to suit the battery bank and installation.

Installation Considerations

The Victron MultiPlus 48/5000/70-100 should be installed by a suitably qualified person familiar with high-current DC systems and 230V AC electrical installations.

Use appropriately sized battery cables, suitable DC overcurrent protection, secure electrical connections and correctly rated AC wiring. Ensure that earthing, neutral arrangements and circuit protection comply with the requirements of the installation.

The 100A transfer switch rating is the maximum specified AC transfer capacity; it does not mean that the inverter can continuously deliver 100A from the battery. The available inverter output is limited by its rated power, battery energy, operating temperature and system configuration.

Before installation, confirm the battery chemistry, charging profile, wiring arrangements and compatibility with other system components. Consult the manufacturer's technical documentation for the requirements applicable to the intended installation.

Why Choose Victron Energy?

Victron Energy is a recognised manufacturer of professional inverter/chargers, battery charging equipment and energy management systems for marine, mobile, residential and commercial applications.

The MultiPlus range combines inverter power, battery charging and AC transfer functionality in a single integrated unit. With PowerControl, PowerAssist, UPS functionality, dual AC outputs and VE.Bus system integration, the PMP485021010 offers a flexible foundation for demanding 48V battery installations.

Product Summary

The Victron Energy MultiPlus 48/5000/70-100 230V VE.Bus Inverter Charger (PMP485021010) combines a 5000VA pure sine wave inverter, 4000W continuous active output at 25°C, a 70A battery charger and a 100A AC transfer switch.

With 10,000W peak power, dual AC outputs, PowerControl, PowerAssist and support for compatible parallel and three-phase configurations, it is a versatile solution for off-grid solar installations, backup power, marine systems and professional battery-based energy storage.

This model is designed for 48V battery systems with 230V AC output. Confirm that the battery system, charging requirements, AC input capacity and installation design are suitable before purchasing.