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Brand range: 385W–675W
Monocrystalline
Topsun Co., Ltd. TOP CLASS 640CH12
Max Power
640W
Efficiency
21.12%
Operating V
37.3V
Warranty
30Y
Technical Specifications
| Open Circuit Voltage (Voc) | 45.1V |
| Short Circuit Current (Isc) | 18.22A |
| Voltage at Pmax (Vmp) | 37.3V |
| Current at Pmax (Imp) | 17.17A |
| Temp. Coefficient of Pmax | -0.386%/°C |
| Dimensions | 2236 x 1355 x 35 mm |
| Weight | 37.9kg |
| NOCT | 44.8°C |
| PTC Rating | 603.3W |
📋 Data verified: June 2026
📄 Specs based on STC (1000 W/m², 25°C, AM 1.5)
🏷️ 90 Topsun Co., Ltd. models in database
FAQ
How efficient is the Topsun Co., Ltd. TOP CLASS 640CH12?
This panel has 21.12% efficiency, which is high for commercial solar panels.
What are the dimensions and weight of the Topsun Co., Ltd. TOP CLASS 640CH12?
It measures 2236 x 1355 x 35 mm and weighs 37.9kg.
What warranty does Topsun Co., Ltd. provide?
Topsun Co., Ltd. offers a 30-year warranty for the TOP CLASS 640CH12, reflecting confidence in long-term durability.
What is the max power output of the Topsun Co., Ltd. TOP CLASS 640CH12?
The Topsun Co., Ltd. TOP CLASS 640CH12 is rated at 640W under STC (1000 W/m², 25°C, AM 1.5).
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