250W-280W Mono-crystalline Solar Panel
· Two decades of experience in manufacturing, the complete PV chain of silicon materials, ingot, wafer, solar glass, solar cell and module, and ISO90001 & ISO14001 certified factory, to ensure excellent raw materials and production control.
· Modules certified by TUV Rheinland (IEC61215, IEC 61730 standards) in the extreme conditions (temperature, load, impact) with good performance. Pass strict tests of solar modules including Salt-mist Corrosion Test, Fire Test, Ammonia Resistance Test, PID Test, Sand Abrasion Test and Carbon Footprint Assessment in TUV.
· The good weak light performance (morning, evening and cloudy day) has been tested and approved by professional third-party.
· Guarantee from 0 to +6W as power tolerance, customers can obtain 5.8% power more than conventional output.
· 100% EL test before and after lamination, and finished products EL test, providing higher quality assurance.
Electrical Characteristics | |||||||
Solar-cells: |
Mono-Crystalline 156×156mm |
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60pcs (6×10) —— 5 bus bars |
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Max-power |
255 |
260 |
265 |
270 |
275 |
280 |
285 |
Power tolerance |
0 to +6W |
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Voltage at pmax (Vmp) |
30.8 |
31.0 |
31.2 |
31.4 |
31.6 |
31.8 |
32.0 |
Current at pmax (Lmp) |
8.28 |
8.39 |
8.49 |
8.60 |
8.70 |
8.81 |
8.91 |
Open-circuit voltage (Voc) |
37.6 |
37.8 |
38.1 |
38.3 |
38.5 |
38.7 |
38.9 |
Short-circuit current (Isc) |
8.96 |
9.05 |
9.19 |
9.31 |
9.42 |
9.53 |
9.64 |
Max-system voltage (VDC) |
1000V(IEC),600v(UL) |
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Cell efficiency |
18.1 |
18.4 |
18.7 |
19.0 |
19.4 |
19.6 |
19.8 |
Module efficiency |
15.7 |
16.0 |
16.3 |
16.6 |
16.9 |
17.2 |
17.5 |
No.of bypass diodes (pcs.) |
3 |
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Max.series fuse (A) |
15A |
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Temperature coefficient of pmax |
-0.45% / ℃ |
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Temperature coefficient of voc |
-0.34% / ℃ |
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Temperature coefficient of isc |
0.05% / ℃ |
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Nominal operating cell temperature |
45±2 ℃ |
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*STC Conditions (1000W/m²;1.5AM and 25℃ cell temperature) | |||||||
Mechanical Characteristics | |||||||
Cable type,diameter and length |
Φ=4mm², L=900±5mm |
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Type of connector |
Compatible type MC4 |
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Dimension A×B×C |
1640×992×45/40/35mm |
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Weight |
18.3/18.0/17.7kg |
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No.of Draining holes in frame |
16 |
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Construction |
Glass: high transmission,Low lron,Tempered glass 3.2mm Encapsulation:EVA Back side:White |
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Junction box |
IP67 Rated |
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Frame |
Clear anodized aluminum alloy type 6063T5 frame |
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Qualification Test Parameters | |||||||
Dielectric insulation voltage |
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