Freedom Won SOLVA RT261 261kWh Dual-Conversion BESS Cabinet
Freedom Won SOLVA RT261 261kWh Dual-Conversion BESS Cabinet
Description
Overview
The Freedom Won SOLVA RT261 is a dual-conversion (online) Battery Energy Storage System (BESS) cabinet pairing 261 kWh of LiFePO₄ storage with an integrated 125 kW rectifier. Its dual-conversion architecture provides independent grid-based charging and an isolated load bus, protecting critical loads against poor grid quality.
The RT261 combines an AC rectifier input (400 V) with integrated DC busbars for an external hybrid inverter, giving flexible system design. Active liquid heating and cooling, aerosol fire suppression, IP55 / C5 protection and a built-in Cabinet Monitoring System (CMS) deliver safe, reliable operation in commercial and industrial installations.
Key Features
Dual-Conversion Architecture
- 261 kWh LiFePO₄ storage with 90% depth of discharge
- Integrated 125 kW rectifier with 400 V three-phase (3P+N+PE) AC input
- Independent grid-based charging with an isolated load bus
Advanced Thermal Management
- Integrated liquid heating (2 kW) and cooling (5 kW) for stable pack temperatures
- Reduced thermal stress for extended battery lifespan
Safety & Protection
- Aerosol fire suppression system integrated at cabinet level
- AC over-current, over-voltage, short-circuit and anti-islanding protection; DC reverse-polarity protection
- IP55 ingress protection and C5 corrosion class for coastal / high-humidity sites
Monitoring & Communication
- Built-in Cabinet Monitoring System (CMS) with local storage and cloud sync
- RS485 (EMS), CAN (BMS) and LAN (Network) interfaces
- Certified to UN38.3, IEC 62619/62477/60730/61000/60529, NRS 097-2-1 and AS/NZS 4777.2:2020 — 5-year warranty
Specifications
| Model | SOLVA RT261 |
|---|---|
| Type | Dual-Conversion BESS Cabinet (Integrated Rectifier) |
| Cell Capacity | 314Ah |
| Battery Chemistry | Lithium Iron Phosphate (LiFePO4) |
| Total Energy Capacity | 261kWh |
| System Depth of Discharge | 90% |
| Nominal Voltage | 832V |
| Max/Min Operating Voltage | 936/728V |
| Cell Configuration | 1P52S per module, 5 modules per pack |
| Battery Pack Thermal Management | Liquid Heating and Cooling |
| External Hybrid Inverter Connection | Integrated DC Busbars - rated for 125kW |
| DC Cabinet Parallel Connection | Up to 12 cabinets in DC parallel (external inverters in AC parallel) |
| External Inverter Communication Interface | CAN Bus |
| Integrated Rectifier Rated Power | 125kW |
| System Input AC Voltage | 400V |
| Rated Frequency | 50/60Hz |
| AC Connection Method | (3P+N+PE) Three-Phase, Four-Wire System |
| Total Current Harmonic Distortion (THD-I) | <2% (at Rated Power) |
| Isolation Type | Transformerless |
| Cable Entry | Bottom Entry |
| Max. Auxiliary Power / Current | 2.8kW / 13.4A |
| Cooling Capacity | 5kW |
| Heating Capacity | 2kW |
| System Total Efficiency | ≥88% |
| Dimensions (H×W×D) ±5mm | 2346×1050×1376mm |
| Weight | 2.5 Tons |
| Ingress Protection | IP55 |
| Corrosion Protection Class | C5 |
| Communication Interface | RS485 (EMS), CAN (BMS), LAN (Network) |
| Protection | AC overcurrent, overvoltage, short-circuit, anti-islanding; DC reverse-polarity |
| Fire Suppression System | Aerosol |
| Operating Temperature | -20 to 55°C |
| Operating Humidity | ≤95% |
| Max. Operating Altitude | Full load up to 2000m; derate 10% per 1000m up to 4000m |
| Standards & Certifications | UN38.3, IEC 62619, IEC 62477, IEC 60730, IEC 61000, IEC 60529, NRS 097-2-1, AS/NZS 4777.2:2020 |
| Standard Warranty | 5 years (extension available) |
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