REFUsol 20K-3T - String inverter
Product information "REFUsol 20K-3T - String inverter"
The REFUsol 20K-3T is a compact 20 kW string inverter with three MPP trackers and 98.6% efficiency – ideal for commercial and industrial PV systems.
More information
REFUsol 20K-3T – Efficiency and flexibility for commercial PV projects
The REFUsol 20K-3T combines advanced technology with high reliability and easy installation. With three independent MPP trackers, an efficiency of up to 98.6% and a long-term overload capacity of 110%, it is the optimal choice for rooftop and ground-mounted systems in the power range up to 20 kW. Thanks to its compact design, flexible communication interfaces and online monitoring via REFUview, the inverter can be quickly integrated and operated efficiently.
Highlights
- 3 independent MPP trackers for flexible system designs
- Efficiency up to 98.6% / EU efficiency 98.2%
- 110% overload capacity for maximum energy yield
- Compatible with older REFUsol models – ideal for repowering projects
- Communication via RS485, USB, Ethernet or optional WiFi logger
- Integrated DC switch and comprehensive protection functions
- Online monitoring via the REFUview platform
- IP65 protection rating – dust and splash-proof
- 10-year manufacturer’s warranty
Technical data – REFUsol 20K-3T
| Rated power (AC) | 20 kW |
|---|---|
| Max. AC power | 22 kVA |
| Recommended PV capacity | up to 30 kWp |
| Max. input voltage (DC) | 1100 V |
| Operating voltage range (DC) | 180 – 1000 V |
| Number of MPP trackers | 3 (2 inputs per MPPT) |
| Max. output current (AC) | 33.3 A |
| Grid connection | 3P/N/PE – 230/400 V, 50/60 Hz |
| Topology | Transformerless |
| Protection rating | IP65 |
| Cooling | Active (fan-assisted) |
| Dimensions (H × W × D) | 480 × 585 × 220 mm |
| Weight | 36 kg |
| Efficiency (max. / EU) | 98.6% / 98.2% |
| Certificates | EN 61000-6-1/3, VDE-AR-N 4105/4110, EN 50549-1 |
| Item number | 853P020.010 |
| Warranty | 10 years |
Safety & Communication
The REFUsol 20K-3T is equipped with an integrated DC switch, anti-islanding protection, earth fault and overtemperature monitoring, as well as overvoltage and overcurrent protection. Communication is via RS485, USB, Ethernet or optional WiFi. All operating data can be read directly on the device via the integrated LCD display, whilst the REFUview platform enables convenient remote monitoring and analysis in real time.
Applications
- Commercial rooftop installations
- Agricultural businesses
- Small to medium-sized industrial installations
- Repowering of existing REFUsol systems
- Hybrid and grid-connected PV concepts
Conclusion
The REFUsol 20K-3T offers an optimal balance of performance, reliability and cost-effectiveness. It is the ideal solution for specialist firms and installers who value modern communication, simple installation and long-term efficiency.
| Item height (mm): | 189 |
|---|---|
| Item length (mm): | 430 |
| Item width (mm): | 520 |
| Manufacturer's part number: | 853P020.010 |
| Weight (kg): | 36 |
Login