Victron MultiPlus-II 12/3000 - 120V (UL Approved) is a versatile inverter/charger that merges Victron’s MultiPlus and MultiGrid capabilities into a single, smart power solution. Engineered for backup power, off-grid, and Energy Storage Systems (ESS), it delivers reliable AC power with seamless automatic switching and advanced monitoring for total energy control.
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Power rating: 3000 VA / 2400 W continuous at 25°C; peak power up to 5500 W
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AC output: 120 VAC ±2% at 60 Hz ±0.1%
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Efficiency & idle power: Up to 93% efficiency; zero-load power as low as 3 W in certain modes (9–13 W depending on mode)
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Battery charging: Up to 120 A charging current; absorption 14.4 V; float 13.8 V; storage 13.2 V
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AC input & transfer: AC input 90–140 VAC / 45–65 Hz; transfer switch 50 A
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UPS & ESS readiness: Uninterrupted Power Supply with automatic transfer in under 20 milliseconds; ESS-ready for pairing with MPPT solar chargers or grid-tie PV inverters
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PowerControl & PowerAssist: PowerControl prevents overloading a limited AC source by reducing battery charging; PowerAssist boosts the global supply by drawing power from the battery when needed
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Monitoring & remote control: Coupled with a Victron GX device to monitor and control locally (LAN) or remotely via the VRM app and VRM portal
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System configurations: VE.Bus enables parallel, split-phase, and three-phase operation, plus remote monitoring and system integration
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Protection & safety: Comprehensive protection (a–g) with UL Approved rating; Battery Temperature Sensor included
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Expansion options: External current transformer option (up to 32 A) for precise sensing; External AC current sensor (optional) up to 100 A; Auxiliary output (32 A); Programmable relay
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Feed-in capability: Maximum apparent feed-in power: 2500 VA
With UL approval and a design built for reliability, this MultiPlus-II provides dependable backup for essential loads, seamless transitions during outages, and flexible integration with solar, grid, and energy storage to optimize self-consumption and system resilience. Paired with Victron GX monitoring, you gain real-time visibility and remote control, while PowerControl and PowerAssist help manage limited AC sources and demand, making it a scalable solution for homes, cabins, and small commercial setups.