The Victron MultiPlus 24/5000/120-100 combines an inverter and a battery charger in one unit, built for 24V battery banks in off-grid, backup and marine or vehicle systems. It supplies 5000VA of continuous inverter output at 230V, backed by a 120A charger for fast recharging when shore power or a generator is available.

Battery charger with inverter features

• Inverter output, 5000VA continuous at 230V AC.
• Charger current, 120A with an adaptive charge algorithm for 24V battery banks.
• AC transfer switch, 100A, switching between shore or generator power and inverter output.
• VE.Bus communication, allows parallel or three-phase configuration of multiple units and integration with Victron GX devices and Venus OS.
• PowerControl and PowerAssist, limits draw from shore or generator power and adds battery power when demand exceeds the available input current.
• Battery sensing, built-in temperature and voltage sensing for charge management across battery chemistries.
• Weight, 32kg.

Configuration and monitoring

The unit is configured through Victron's VEConfigure software, with settings for charge profiles, input current limits and relays. Up to six MultiPlus units can be wired together over VE.Bus for higher capacity or split-phase and three-phase arrangements. Connected to a Cerbo GX or similar device, the MultiPlus can be monitored and adjusted remotely through the VRM portal.

PowerAssist on generator systems

When a generator is running near its rated output, PowerAssist draws extra power from the battery to cover load peaks. This avoids generator overload without needing a larger generator, useful where generator size and fuel use are limited.

Applications

• Off-grid cabins and remote buildings needing 230V AC from a 24V battery bank.
• Generator-backed systems where PowerAssist reduces generator sizing and fuel costs.
• Marine vessels and large motorhomes with 24V DC systems needing shore power and charging.
• Backup power for telecoms, security or industrial equipment.
• Multi-unit parallel or three-phase systems for commercial off-grid sites.

What's included

• Victron MultiPlus 24/5000/120-100 230V VE.Bus inverter charger unit.

Installation should be carried out by a qualified electrician. DC cabling, fusing and battery configuration need to handle the full 120A charge current and inverter load at 24V. Grid-connected or generator-integrated installations must meet current UK wiring regulations and network operator requirements.