Description
Professional Technical Overview: MultiPlus-II 48/10000/140-100 230V
The Victron MultiPlus-II 48/10000/140-100 is a high-performance power conversion infrastructure designed for sophisticated 48V systems. This unit integrates a heavy-duty true sine wave inverter, an advanced adaptive battery charger, and a high-speed AC transfer switch into a single, wall-mounted chassis. Engineered for resilience, it serves as the primary power backbone for off-grid residential hubs, high-capacity mobile power stations, and sophisticated Energy Storage Systems (ESS).
Core Architectural Features
Integrated PowerAssist & PowerControl: This technology prevents the overloading of limited AC sources (such as a generator or a 100A shore connection). The MultiPlus-II monitors the incoming supply and prioritizes the load; if the demand exceeds the source capacity, the unit dynamically supplements the deficit using battery power, allowing for peak loads that exceed the physical limits of the input breaker.
True UPS Functionality: In the event of a grid failure or shore power disconnection, the integrated transfer switch engages in less than 20 milliseconds. This high-speed transition ensures that sensitive electronic equipment and critical industrial loads continue to operate without rebooting or interruption.
Advanced Lithium-Optimized Adaptive Charging: The 140A internal charger utilizes a sophisticated three-stage algorithm (Bulk-Absorption-Float). It is fully programmable for various chemistries, specifically optimized for LiFePO4 via VE.Bus integration, and includes a voltage-sensing “Storage Mode” to minimize plate aging and electrolyte gasification during standby.
ESS Readiness & Grid-Parallel Operation: The MultiPlus-II is designed for bi-directional energy flow. When configured within an Energy Storage System, it can manage excess solar harvest by either charging the 48V bank or exporting surplus energy back to the grid, depending on local regulations and system programming.
Technical Specifications
| Category | Specification | Details |
| System Logic | Model Identifier | MultiPlus-II 48/10000/140-100 |
| Protection Rating | IP22 | |
| Dimensions | 677 x 363 x 217 mm | |
| Net Weight | 49 kg | |
| Inverter Output | Continuous Power (25°C) | 8000 W (10,000 VA) |
| Peak Power Capacity | 18,000 W | |
| Output Waveform | Pure Sine Wave 230 VAC ± 2% | |
| Frequency Control | 50 Hz ± 0.1% (60 Hz Adjustable) | |
| DC Interface | Input Voltage Range | 38 VDC – 66 VDC |
| Max. Efficiency | 96% | |
| Charger/Transfer | Max. Charge Current | 140 A |
| AC Transfer Switch | 100 A | |
| Interface Ports | VE.Bus, COM, Programmable Relay |
Redundant Protection Systems
The unit features an array of hardware-level protections to ensure long-term reliability in harsh environments:
Output short circuit and overload prevention.
Battery over-voltage and under-voltage protection.
Dynamic thermal management and over-temperature derating (operating range: -40 to +65°C).
Input ripple reduction to protect internal capacitors.
System Scalability
For massive power requirements, the MultiPlus-II supports parallel operation of up to six units, providing a total power output of nearly 50kW. It also supports three-phase configuration, making it a viable solution for light industrial applications and large-scale solar arrays.
Warranty: 5-year limited manufacturer warranty.
