- MAX. EFFICIENCY 98.6%
- IP66 PROTECTION
STT 10~20kW
Three Phase | 2/2 MPPT | On-Grid
The Sunways STT-10K~20KTL-SE-LV is a three-phase low-voltage inverter for residential, commercial, and small C&I solar systems. With 98.6% max efficiency, 2 MPPTs, and 150% PV oversizing, it maximizes energy yield. IP66 protection, AFCI, and DC/AC surge protection ensure reliable outdoor operation, while 40A PV input, remote upgrading, and Sunways Portal App support simplify installation and O&M.
Key Features
Safe & Reliable
- Integrated surge protection for both DC and AC
- IP66 design ensures reliable performance for outdoor applications
- Integrated AFCI functionality for enhanced safety
- Capable of operating under phase shifts and harmonic grids
High Yield
- Max. efficiency up to 98.6%
- European weighted efficiency up to 98.2%
- Up to 150% PV array oversizing for higher flexibility and efficiency
- Increased PV panel current to 20A and MPPT switching frequency to 20kHz
- Up to 10% continuous output overloading capacity
Easy to Use
- Support wireless and wired internet connection: RS485 / WiFi / GPRS / LAN optional
- Remote upgrading available
- Real-time temperature monitoring and protection for multiple power transistors
- Effortless commissioning and monitoring through Sunways Portal App
Product Highlights
| Parameter | Specification |
|---|---|
| Power Range | 10 kW / 15 kW / 20 kW |
| Max. Efficiency | Up to 98.6% |
| European Efficiency | Up to 98.2% |
| MPPT Design | 2 MPPTs |
| Protection Degree | IP66 |
| AFCI Function | Optional |
| Max. Input Current | 40A / 40A |
| Application | Residential, Commercial and Small C&I Solar Systems |
| Parameter | Specification |
|---|---|
| Max. DC Input Voltage | 750 V |
| Rated DC Input Voltage | 360 V |
| MPPT Voltage Range | 200–650 V |
| Start-up Voltage | 180 V |
| No. of DC Inputs per MPPT | 2 / 2 |
| Max. Short-circuit Current | 50A / 50A |
| Rated Output Voltage | 3 / N / PE, 127 / 220 V |
| Rated AC Frequency | 50 / 60 Hz |
| Max. Output Power | 11 kW / 16.5 kW / 22 kW |
| Max. Output Current | 28.9 A / 43.3 A / 57.8 A |
| Power Factor | 0.8 leading … 0.8 lagging |
| THDi @ Rated Power | <3% |
| Cooling | Natural Convection |
| Noise Level | <25 dB |
| Operating Temperature | -30℃ ~ 60℃ |
| Dimensions | 550 × 410 × 199 mm |
| Weight | 27.4 kg |
| Display | OLED & LED |
| Communication | RS485 / WiFi / GPRS / LAN Optional |
| Topology | Transformerless |
