REFUsol 20K-2T - String inverter
Product information "REFUsol 20K-2T - String inverter"
The REFUsol 20K-2T is a powerful, compact inverter with two MPP trackers and an efficiency of up to 98.6% – ideal for commercial and industrial photovoltaic systems.
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REFUsol 20K-2T – New flexibility meets compatibility
The REFUsol 20K-2T inverter offers a forward-looking solution for small to medium-sized PV projects. With its two independent MPP trackers, it allows flexible adaptation to different roof pitches and system designs. Thanks to its compact design and high power density, the unit is suitable for both rooftop and ground-mounted systems.
Integration into existing systems is straightforward via Ethernet or a WiFi logger (optional). The inverter can be conveniently monitored remotely via the REFUview online platform – including a modern user interface, performance analysis and system overview throughout the entire warranty period.
Key features
- 2 independent MPP trackers for flexible string configuration
- Max. efficiency: 98.6% / European efficiency: 98.2%
- Long-term overload capacity up to 110%
- Compatible with older REFUsol inverters – ideal for repowering
- Integrated DC switch and comprehensive protection functions
- IP65 protection rating for indoor and outdoor use
- Integration via RS485, USB, Ethernet or WiFi (optional)
- Warranty: 10 years
Technical data – REFUsol 20K-2T
| Item no. | 853P020 |
|---|---|
| Recommended PV output (kWp) | 30 |
| Max. input voltage (V) | 1100 |
| Nominal input voltage (V) | 650 |
| Number of MPP trackers | 2 |
| Max. current per MPPT (A) | 26 |
| DC connection | MC4 |
| Rated power (kW) | 20 |
| Max. AC power (kVA) | 22 |
| Max. output current (A) | 31.9 |
| Rated output voltage (V) | 3P/N/PE: 230/400 |
| Topology | Transformerless |
| Protection class | IP65 |
| Dimensions (H × W × D) | 430 × 520 × 189 mm |
| Weight | 22 kg |
| Cooling | Fan |
| Noise level | < 40 dBA |
| Max. operating temperature | +60 °C (derating > 45 °C) |
| Protection functions | Anti-islanding, DC reverse polarity, overvoltage, overcurrent, earth fault, overtemperature |
| Certificates | VDE-AR-N 4105, EN 50549, CEI 0-21, G98/G99, etc. |
Interfaces & communication
- RS485 / USB: integrated
- Ethernet / WiFi: optional (item no. 924024 / 924025)
- Compatible with REFUview online monitoring
The REFUsol 20K-2T combines efficiency, compatibility and future-oriented technology in a compact unit – the perfect choice for commercial PV systems and repowering projects.
| Item height (mm): | 189 |
|---|---|
| Item length (mm): | 430 |
| Item width (mm): | 520 |
| Manufacturer's part number: | 853P020.000 |
| Weight (kg): | 22 |
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