🏭View all 90 Topsun Co., Ltd. models→
Brand range: 385W–675W
Monocrystalline
Topsun Co., Ltd. TOP CLASS 645CH12
Max Power
645W
Efficiency
21.29%
Operating V
37.5V
Warranty
30Y
Technical Specifications
| Open Circuit Voltage (Voc) | 45.3V |
| Short Circuit Current (Isc) | 18.27A |
| Voltage at Pmax (Vmp) | 37.5V |
| Current at Pmax (Imp) | 17.21A |
| Temp. Coefficient of Pmax | -0.386%/°C |
| Dimensions | 2236 x 1355 x 35 mm |
| Weight | 37.9kg |
| NOCT | 44.8°C |
| PTC Rating | 608.1W |
📋 Data verified: June 2026
📄 Specs based on STC (1000 W/m², 25°C, AM 1.5)
🏷️ 90 Topsun Co., Ltd. models in database
FAQ
What warranty does Topsun Co., Ltd. provide?
Topsun Co., Ltd. offers a 30-year warranty for the TOP CLASS 645CH12, reflecting confidence in long-term durability.
What are the dimensions and weight of the Topsun Co., Ltd. TOP CLASS 645CH12?
It measures 2236 x 1355 x 35 mm and weighs 37.9kg.
How efficient is the Topsun Co., Ltd. TOP CLASS 645CH12?
This panel has 21.29% efficiency, which is high for commercial solar panels.
What is the max power output of the Topsun Co., Ltd. TOP CLASS 645CH12?
The Topsun Co., Ltd. TOP CLASS 645CH12 is rated at 645W under STC (1000 W/m², 25°C, AM 1.5).
Compare This Panel
Add this Topsun Co., Ltd. TOP CLASS 645CH12 to compare specs side-by-side with other commercial solar panels.
📄 Download
Save this datasheet as PDF for offline reference.
Share
Advertisement
⚡ High-Power Model
At 645W, this is one of Topsun Co., Ltd.'s most powerful panels.
Compare with Topsun Co., Ltd. lineup →