- MAX. EFFICIENCY 97.5%
- IP66 PROTECTION
STS 3~4kW
The Sunways STS-3K~4KTL-M is a compact single phase on-grid inverter for residential rooftop solar systems. With high efficiency, 1 MPPT design, IP66 protection, flexible communication and easy App or OLED configuration, it ensures reliable solar power generation, simple installation and long-term stable operation.
Key Features
Safe & Reliable
- High reliability due to good heat dissipation design
- Integrated lightning protection for both DC and AC
- Adaptable to complex power grid conditions
- High anti-corrosion ability with aluminum alloy die-casting technology
- Wide working temperature and altitude range for various installation environments
High Yield
- Max. efficiency up to 98.1%
- European weighted efficiency up to 97.5%
- Wide MPPT voltage range
- Up to 10% continuous output overloading capacity
- Single MPPT design with precise MPPT algorithm
Easy to Use
- Compact and elegant design with light weight
- One-person installation for residential projects
- Plug-and-play connectors for easy installation
- Support wireless and wired internet connection: RS485 / WiFi / GPRS / LAN optional
- Remote upgrading available
- Fast and easy configuration via App or OLED display
Product Highlights
| Parameter | Specification |
|---|---|
| Power Range | 3 kW / 3.3 kW / 3.6 kW / 4 kW |
| Max. Efficiency | Up to 98.1% |
| European Efficiency | Up to 97.5% |
| MPPT Design | 1 MPPT |
| Protection Degree | IP66 |
| Communication | RS485 / WiFi / GPRS / LAN Optional |
| Parameter | Specification |
|---|---|
| Max. DC Input Voltage | 600 V |
| MPPT Voltage Range | 80–550 V |
| Max. Input Current | 20 A |
| Max. Short-circuit Current | 25 A |
| Operating Temperature | -30℃ ~ 60℃ |
| Cooling | Natural Convection |
| Noise Level | <25 dB |
| Display | OLED |
| Weight | 6.5 kg |
| Dimensions | 327 × 297 × 114 mm |
