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Brand range: 170W–330W
Monocrystalline
Suntech Power STP285S-20/Wem
Max Power
285W
Efficiency
17.52%
Operating V
31.6V
Warranty
25Y
Technical Specifications
| Open Circuit Voltage (Voc) | 39.6V |
| Short Circuit Current (Isc) | 9.48A |
| Voltage at Pmax (Vmp) | 31.6V |
| Current at Pmax (Imp) | 9.02A |
| Temp. Coefficient of Pmax | -0.427%/°C |
| Dimensions | 1640 x 992 x 35 mm |
| Weight | 20.3kg |
| NOCT | 44.4°C |
| PTC Rating | 267.3W |
📋 Data verified: June 2026
📄 Specs based on STC (1000 W/m², 25°C, AM 1.5)
🏷️ 133 Suntech Power models in database
FAQ
What are the dimensions and weight of the Suntech Power STP285S-20/Wem?
It measures 1640 x 992 x 35 mm and weighs 20.3kg.
What is the max power output of the Suntech Power STP285S-20/Wem?
The Suntech Power STP285S-20/Wem is rated at 285W under STC (1000 W/m², 25°C, AM 1.5).
How efficient is the Suntech Power STP285S-20/Wem?
This panel has 17.52% efficiency, which is standard for commercial solar panels.
How long is the warranty for the Suntech Power STP285S-20/Wem?
The STP285S-20/Wem comes with a 25-year product warranty covering defects and degradation.
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☀️ Top Performer
This Suntech Power model ranks among the brand's most efficient panels at 17.52%.
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