🏭View all 128 Wuxi Suntech Power Co., Ltd models→
Brand range: 255W–450W
Monocrystalline
Wuxi Suntech Power Co., Ltd STP285S-20/Wfm
Max Power
285W
Efficiency
17.59%
Operating V
31.7V
Warranty
25Y
Technical Specifications
| Open Circuit Voltage (Voc) | 38.4V |
| Short Circuit Current (Isc) | 9.47A |
| Voltage at Pmax (Vmp) | 31.7V |
| Current at Pmax (Imp) | 9A |
| Temp. Coefficient of Pmax | -0.443%/°C |
| Dimensions | 1635 x 991 x 35 mm |
| Weight | 20.3kg |
| NOCT | 43.6°C |
| PTC Rating | 267.5W |
📋 Data verified: June 2026
📄 Specs based on STC (1000 W/m², 25°C, AM 1.5)
🏷️ 128 Wuxi Suntech Power Co., Ltd models in database
FAQ
How long is the warranty for the Wuxi Suntech Power Co., Ltd STP285S-20/Wfm?
The STP285S-20/Wfm comes with a 25-year product warranty covering defects and degradation.
How efficient is the Wuxi Suntech Power Co., Ltd STP285S-20/Wfm?
This panel has 17.59% efficiency, which is standard for commercial solar panels.
What is the max power output of the Wuxi Suntech Power Co., Ltd STP285S-20/Wfm?
The Wuxi Suntech Power Co., Ltd STP285S-20/Wfm is rated at 285W under STC (1000 W/m², 25°C, AM 1.5).
What are the dimensions and weight of the Wuxi Suntech Power Co., Ltd STP285S-20/Wfm?
It measures 1635 x 991 x 35 mm and weighs 20.3kg.
Compare This Panel
Add this Wuxi Suntech Power Co., Ltd STP285S-20/Wfm to compare specs side-by-side with other commercial solar panels.
📄 Download
Save this datasheet as PDF for offline reference.
Share
Advertisement
📊 Brand Context
Wuxi Suntech Power Co., Ltd offers 128 solar panel models from 255W to 450W.
Browse all Wuxi Suntech Power Co., Ltd models →