Description
SUNWAYS STT-12KTL-P 12kW Three Phase On-Grid Solar Inverter

The SUNWAYS STT-12KTL-P 12kW Solar Inverter is designed for commercial and industrial solar power applications requiring efficient and stable grid-connected energy conversion.
Its advanced dual MPPT technology independently tracks the maximum power point of solar panel strings, helping improve energy harvesting under varying solar conditions.
With a maximum efficiency of 98.6%, 1,100V maximum DC input voltage and IP65 protection, the STT-12KTL-P offers a flexible and reliable solution for modern three-phase solar installations.
Key Features
- 12kW rated AC output
- Maximum efficiency: 98.6%
- European efficiency: 98.2%
- Dual MPPT technology
- Maximum DC input power: 19,200W
- Maximum output power: 13,200W
- Maximum DC voltage: 1,100V
- MPPT voltage range: 160–1,000V
- Maximum input current: 15A per MPPT
- IP65 protection
- Integrated surge and electrical protection
- Remote upgrading support
- Optional WiFi/GPRS/LAN monitoring
- OLED and LED display
Technical Specifications
| Specification | Details |
|---|---|
| Model | STT-12KTL-P |
| Rated AC Output | 12,000W |
| Maximum Output Power | 13,200W |
| Maximum DC Input Power | 19,200W |
| Maximum Efficiency | 98.6% |
| European Efficiency | 98.2% |
| MPPT Trackers | 2 |
| Maximum DC Voltage | 1,100V |
| MPPT Voltage Range | 160–1,000V |
| Maximum Input Current | 15A / 15A |
| Rated AC Voltage | 230/400V |
| Protection Rating | IP65 |
| Communication | RS485, Optional WiFi/GPRS/LAN |
Applications
- Commercial rooftop solar projects
- Industrial buildings
- Manufacturing facilities
- Three-phase net-metering projects
- Medium-sized solar power installations
Discover efficient and intelligent solar energy conversion with the SUNWAYS STT-12KTL-P from SOLARIAN.












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