- MAX. EFFICIENCY 98.6%
- IP66 PROTECTION
STT 15~30kW
Three Phase | 1/2MPPTs | On-Grid
The Sunways STT-15K~30KTL-SE(-S) is a three-phase grid-tied inverter for residential, commercial, and small C&I solar systems. With 98.6% max efficiency, 1 or 2 MPPTs, and up to 150% PV oversizing, it maximizes energy yield and system flexibility. IP66 protection, integrated AFCI, and DC/AC surge protection ensure safe outdoor operation. Its 40A PV input, remote upgrading, real-time temperature monitoring, and Sunways Portal App support simplify installation, commissioning, and O&M.
Key Features
Safe & Reliable
- Integrated surge protection for both DC and AC
- IP66 design ensures reliable outdoor performance
- Integrated AFCI for enhanced safety
- Operates reliably under phase shifts and harmonic grids
High Yield
- Max. efficiency 98.6%, European weighted efficiency 98.2%
- Up to 150% PV array oversizing for 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
- Supports wireless and wired internet (RS485 / WiFi / GPRS / LAN optional)
- Remote upgrading available
- Real-time temperature monitoring and protection for multiple power transistors
- Effortless commissioning and monitoring via Sunways Portal App
Product Highlights
| Parameter | Specification |
|---|---|
| Power Range | 15 kW / 20 kW / 25 kW / 30 kW |
| Max. Efficiency | 98.6% |
| European Efficiency | 98.2% |
| MPPT Design | 1 / 2 MPPTs |
| Protection Degree | IP66 |
| AFCI Function | Optional |
| Max Input Current | 40A / 40A |
| Application | Residential, Commercial, Small C&I Rooftop Solar Systems |
| Parameter | Specification |
|---|---|
| Max. DC Input Voltage | 1000 V |
| MPPT Voltage Range | 200–800 V |
| PV Input Current | 20 A per string |
| Max AC Output Current | 28–57 A |
| AC Rated Voltage | 3L / N / PE, 220 / 380 V |
| AC Frequency | 50 / 60 Hz |
| Continuous Output Overload | Up to 10% |
| Operating Temperature | -30℃ ~ 60℃ |
| Cooling | Natural Convection / Smart Fan |
| Noise Level | <40 dB |
| Display | OLED / LED |
| Communication | RS485 / WiFi / GPRS / LAN optional |
| Weight | 27–35 kg |
| Dimensions [W×H×D] | 550 × 410 × 199 mm |
