Victron MultiPlus-II 48/3000/35-50 120V (UL 1741)
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Unleash Uninterrupted Power with the MultiPlus-II Inverter/Charger
Experience the ultimate in reliable and versatile power management with the MultiPlus-II, a sophisticated inverter/charger designed to empower your most demanding applications. This exceptional device seamlessly integrates multiple functionalities, delivering robust AC power conversion, intelligent battery charging, and critical system protection – all within a single, elegant solution.
Engineered for Excellence Across Diverse Environments
Whether you're navigating the open seas aboard a professional marine vessel or yacht, powering an adventurous overland vehicle, or establishing a resilient land-based off-grid system, the MultiPlus-II stands ready. Its robust design and advanced features make it the ideal choice for environments where dependable power is not just a convenience, but a necessity. Furthermore, its inherent isolation capabilities and built-in redundancy provide the crucial layers of security required for complex Energy Storage Systems (ESS), ensuring peace of mind and operational continuity.
Intelligent Power Management for Peak Performance
The MultiPlus-II is packed with intelligent features designed to optimize your power flow. Say goodbye to overloaded grids or generators thanks to the innovative PowerControl function, which intelligently manages incoming power to prevent costly disruptions. When demand surges, PowerAssist steps in, seamlessly boosting AC power to keep all your appliances running without a hitch. And in the rare event of a power outage, the MultiPlus-II transitions to inverter mode in mere milliseconds, ensuring your sensitive electronics, like computers and medical equipment, continue to operate without the slightest interruption.
Extend Battery Life with Smart Charging Technology
At the heart of the MultiPlus-II lies a smart, adaptive battery charging algorithm. This sophisticated technology not only delivers rapid and efficient charging but also intelligently optimizes the charging process to significantly extend the lifespan of your valuable battery bank. Invest in longevity and reliability for your power storage.
Scalability and Future-Proof Design
Your power needs can evolve, and the MultiPlus-II is designed to evolve with them. Ready for expansion, this powerful unit supports both parallel and three-phase configurations, allowing you to seamlessly scale your system as your requirements grow. Build a foundation of power that can adapt to tomorrow's demands, today.
A Legacy of Innovation
Please note: For a brief period, this innovative product was known as the MultiGrid-II. Rest assured, it's the same cutting-edge technology, simply with an updated name reflective of its broader capabilities.
Features
True Sine Wave Inverter
Delivers clean, stable AC power, identical to grid electricity. This ensures the safe and reliable operation of sensitive electronics without damage or malfunction.
Adaptive Charging Technology
Utilizes a sophisticated, multi-stage charging algorithm to optimize battery life and performance. It adapts to the specific battery type and condition, ensuring efficient and safe charging.
Hybrid Power Capability
Combines grid, solar, and battery power seamlessly for maximum energy independence and reliability. It can automatically switch between power sources to maintain an uninterrupted supply.
PowerAssist Feature
Prevents overload of a limited AC source, such as a generator or shore power connection. It supplements the incoming AC power with energy from the battery, allowing for higher temporary power demands.
Parallel and Three-Phase Operation
Scalable design allows for increasing power output by operating multiple units in parallel. It also supports three-phase configurations for higher power systems and specific industrial applications.
Integrated Transfer Switch
Features an ultra-fast automatic transfer switch that ensures seamless power transitions. In the event of a grid outage, it switches to battery power in less than 20 milliseconds, preventing interruptions.
Remote Monitoring and Control
Enables convenient management and monitoring of the system from anywhere using a Victron GX device and the VRM portal. Users can view performance data, change settings, and receive alerts remotely.
Specifications
| Nominal Battery Voltage | 48 VDC |
| AC Output Voltage | 120 VAC +/-2% |
| AC Output Frequency | 60 Hz |
| Continuous Output Power at 77 F/25 C | 3000 VA / 2400 W |
| Peak Power | 5500 W |
| Maximum Charge Current | 35 A |
| Charge Algorithm | Adaptive, 4-stage |
| Maximum Efficiency | 95% |
| Transfer Switch | 50 A |
| Communication Port | VE.Bus |
| Protection Category | IP22 |
| Operating Temperature Range | -40 to 140 F (-40 to 60 C) |
| Dimensions (H x W x D) | 22.5 x 10.9 x 5.8 in |
| Weight | 41.9 lb |
Datasheets and Manuals

$1,052.30