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Brand range: 170W–330W
Monocrystalline
Suntech Power STP255S-20/Wdb
Max Power
255W
Efficiency
15.67%
Operating V
30.9V
Warranty
25Y
Technical Specifications
| Open Circuit Voltage (Voc) | 37.5V |
| Short Circuit Current (Isc) | 8.73A |
| Voltage at Pmax (Vmp) | 30.9V |
| Current at Pmax (Imp) | 8.26A |
| Temp. Coefficient of Pmax | -0.45%/°C |
| Dimensions | 1640 x 992 x 35 mm |
| Weight | 20.3kg |
| NOCT | 43.7°C |
| PTC Rating | 239.0W |
📋 Data verified: June 2026
📄 Specs based on STC (1000 W/m², 25°C, AM 1.5)
🏷️ 133 Suntech Power models in database
FAQ
What is the max power output of the Suntech Power STP255S-20/Wdb?
The Suntech Power STP255S-20/Wdb is rated at 255W under STC (1000 W/m², 25°C, AM 1.5).
What are the dimensions and weight of the Suntech Power STP255S-20/Wdb?
It measures 1640 x 992 x 35 mm and weighs 20.3kg.
How long is the warranty for the Suntech Power STP255S-20/Wdb?
The STP255S-20/Wdb comes with a 25-year product warranty covering defects and degradation.
How efficient is the Suntech Power STP255S-20/Wdb?
This panel has 15.67% efficiency, which is standard for commercial solar panels.
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📊 Brand Context
Suntech Power offers 133 solar panel models from 170W to 330W.
Browse all Suntech Power models →