Victron Energy MultiPlus-II 48/5000/70-95 120V VE.Bus Inverter/Charger – PMP482505110

Product Overview

The Victron Energy MultiPlus-II 48/5000/70-95 120V VE.Bus is a high-capacity inverter/charger designed for demanding 48V battery systems. Combining a powerful pure sine wave inverter, an intelligent 70A battery charger and a 95A automatic transfer switch, it provides an integrated solution for marine electrical systems, off-grid installations, backup power and compatible energy storage applications.

With a 5,000VA inverter rating, the MultiPlus-II converts 48V DC battery power into 120V AC electricity for compatible appliances and equipment. When an external AC supply is available, the unit can supply connected loads and charge the battery bank. If the incoming supply fails, it can automatically switch to inverter operation, helping maintain power to supported equipment.

High-Capacity Pure Sine Wave Inverter

The integrated inverter delivers a pure sine wave AC output designed to provide reliable power for compatible electrical appliances, electronics and equipment. Its 5,000VA capacity makes it suitable for installations with higher power requirements than smaller inverter/charger models.

Continuous active power output is approximately 4,000W at 25°C, 3,700W at 40°C and 3,000W at 65°C. Peak power is rated at 9,000VA for short-duration demands. Actual performance depends on temperature, battery capability, load characteristics and installation conditions.

The 48V DC input helps reduce current compared with equivalent lower-voltage systems at similar power levels. A suitably sized battery bank, correctly rated cables and appropriate DC protection are essential for safe and dependable operation.

Integrated 70A Battery Charger

The built-in battery charger delivers up to 70A of charging current under the specified operating conditions. When connected to a suitable external AC source, the MultiPlus-II can power connected equipment while recharging the battery bank.

Victron's adaptive charging technology adjusts the charging process according to the configured battery profile and charging requirements. The charger supports different battery types when correctly configured, helping deliver suitable charging stages and maintain battery performance.

Battery charging parameters must be selected according to the battery manufacturer's recommendations. Compatible battery management equipment is essential when required by the chosen battery chemistry.

Automatic 95A AC Transfer Switch

The integrated 95A transfer switch enables automatic changeover between an external AC source and inverter-generated power. When suitable incoming power is available, the MultiPlus-II can pass it through to connected loads while charging the battery. If the external supply becomes unavailable, it can switch to inverter operation with minimal interruption under supported operating conditions.

This functionality is particularly useful for marine systems, generator-backed installations and other applications where the AC supply may change between different sources.

The maximum AC input current is rated at 95A. Incoming supply arrangements, circuit protection, distribution equipment and connected loads must all be designed to comply with the manufacturer's requirements and applicable electrical regulations.

PowerControl and PowerAssist

PowerControl allows the maximum current drawn from an external AC supply to be configured. This helps prevent a generator or shore-power connection from being overloaded, particularly when the supply has limited capacity.

PowerAssist extends this capability by supplementing the incoming AC supply with power from the battery when demand temporarily exceeds the configured input-current limit. This can help accommodate short periods of increased electrical demand without relying entirely on the external source.

These features provide flexible power management for installations with variable loads and restricted incoming AC capacity.

Energy Storage and System Integration

The MultiPlus-II can form part of a compatible energy storage system, including installations that combine battery storage with suitable solar inverters and other Victron equipment. Correct configuration and any required external components depend on the system design and applicable grid requirements.

The VE.Bus communication interface supports system configuration, monitoring and integration. Compatible equipment allows users and installers to monitor operating conditions and configure the system for the intended application.

The unit also supports compatible parallel and split-phase configurations, as well as three-phase arrangements where permitted by the system design. These installations require compatible units, suitable cabling and correct commissioning.

Applications

The Victron Energy MultiPlus-II 48/5000/70-95 120V is suitable for compatible marine power systems, larger mobile installations, remote properties, off-grid energy systems and backup-power applications requiring substantial inverter capacity.

It can be used where battery charging, automatic AC transfer and inverter power are needed in one integrated device. Its PowerControl and PowerAssist functions are particularly useful when working with limited generator or shore-power capacity.

Important: This model produces 120V AC and is intended for compatible electrical systems. It should not be confused with the 230V models commonly used in UK and European installations. Check voltage and certification compatibility before purchasing.

Technical Specifications

Product name: Victron Energy MultiPlus-II 48/5000/70-95 120V VE.Bus.

Product code: PMP482505110.

Product type: Inverter/charger with automatic AC transfer switch.

Nominal battery voltage: 48V DC.

DC input voltage: 48V nominal.

Inverter capacity: 5,000VA.

Continuous active power at 25°C: 4,000W.

Continuous active power at 40°C: 3,700W.

Continuous active power at 65°C: 3,000W.

Peak power: 9,000VA.

AC output voltage: 120V AC ±2%.

Output frequency: 60Hz ±0.1%.

Maximum battery charging current: 70A.

Transfer switch rating: 95A.

Maximum AC input current: 95A.

Maximum inverter efficiency: approximately 96%.

Protection rating: IP21.

Communication interface: VE.Bus.

Dimensions: approximately 676 × 329 × 164mm (height × width × depth).

Weight: approximately 32kg.

Key functions: Pure sine wave inversion, adaptive battery charging, PowerControl, PowerAssist, automatic AC transfer and compatible energy storage system integration.

Installation and Compatibility

The MultiPlus-II must be installed in accordance with Victron's instructions and the electrical regulations applicable to the installation. Ensure that the battery bank is suitable for a 48V system and can supply the current required by the inverter under the expected operating conditions.

Installation should include correctly rated DC cables, suitable battery-side overcurrent protection, appropriate AC circuit protection, proper earthing and adequate ventilation. Incoming AC supplies and connected loads must remain within the unit's ratings.

Battery charging parameters must be configured for the installed battery type. Any parallel or split-phase system requires compatible equipment and correct configuration. Grid-connected energy storage applications must meet the applicable local grid requirements and use the necessary approved components.

Professional installation and commissioning are recommended, particularly for marine, commercial and permanently wired electrical systems.

Product Summary

The Victron Energy MultiPlus-II 48/5000/70-95 120V VE.Bus combines a 5,000VA inverter, 70A battery charger and 95A transfer switch in one integrated unit. With pure sine wave output, PowerControl, PowerAssist and VE.Bus system integration, it offers a versatile power-management solution for compatible 48V battery installations requiring high-capacity 120V AC power.