Victron MultiPlus-II 3kVA 48V Inverter Charger is an advanced and powerful solution for high-demand off-grid, solar, RV, marine, and backup power applications. Combining a true sine wave inverter, a 120A adaptive battery charger, and an ultra-fast AC transfer switch, this inverter/charger ensures reliable, high-quality AC power. The MultiPlus-II 3kVA 48V also features PowerAssist and PowerControl technologies, which intelligently balance power usage, preventing overloads while maximizing energy efficiency. It is compatible with a variety of battery types, including lithium, AGM, gel, and flooded, and offers scalability for larger systems with parallel and three-phase configurations.
Key Features
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True Sine Wave Inverter: Provides stable, grid-quality AC output for sensitive electronics
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120A Adaptive Battery Charger: Features a four-stage charging process for optimal battery health
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Ultra-fast AC Transfer (<20 ms): Ensures seamless transition between power sources
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PowerAssist & PowerControl: Prevents overloads by intelligently managing energy usage
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Dual-Bank Charging: Supports simultaneous charging of two battery banks
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Battery Compatibility: Works with lithium, AGM, gel, and flooded batteries
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Scalable System: Parallel and three-phase operation for large-scale installations
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Remote Monitoring: Access via VE.Bus and VRM portal for system diagnostics and control
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Compact & Robust Design: Space-saving, efficient, and durable for long-term performance
Technical Data Table
| Specification | Value / Range |
|---|---|
| Nominal output power | 3000 VA |
| Continuous output power | ~2400 W |
| Input (DC) voltage | 48 V |
| Maximum charge current | 120 A |
| AC input voltage range | 187 – 265 V AC |
| AC input frequency | 45 – 65 Hz |
| Efficiency (inverter) | ~92 – 95 % |
| Transfer switch time | < 20 ms |
| Supported battery types | Lithium, AGM, Gel, Flooded |
| Peak power capability | ~6000 W (short duration) |
| Operating temperature | –20 °C to +50 °C |
| Remote interface | VE.Bus / VRM |
| Scalability | Parallel & 3-phase capable |




























