72 Cells Poly Solar Panel 330W

156.75mm Poly Solar PV Module The first solar panels based on polycrystalline silicon technology entered the market in 1981. Polycrystalline solar panels are made by melting several fragments of raw silicon together. Melted silicon is then poured into square moulds and cooled. These are then cut into perfectly square wafers that are used in the solar panels. Polycrystalline solar panels do not use a single crystal of silicon. In common parlance, polycrystalline solar panels are also known as multi-crystalline, or many-crystal silicon panels, names that are derived from their manufacturing technology. The presence of multiple crystals in each cell restricts the movement of the electrons, which leads to polycrystalline solar panels having an efficiency level lower than that of mono-crystalline panels.

Products Details

Monocrystalline solar module advanced surface treatment technology, low surface reflectivity and 5bb cells design, lower series resistance and higher conversion efficiency. The efficiency value is directly related to the power rating and the size of the solar panel. Let’s imagine we have a panel with a specific size and power output. If we increase the efficiency, then it means the panel will need less space to produce the same amount of power. In other words, the module will have the same size, but its power output will be bigger. On the other hand, if we reduce the efficiency of the solar panel, then it means that the PV system will need to cover more space since the solar panel will have the same size but will have a lower power output. Therefore, selecting the appropriate panel model according to the efficiency rating can have a significant impact on the power output of your PV system, drive important space reductions and, increase annual energy yields.Polycrystalline solar module 72-cells module advanced surface treatment technology, low surface reflectivity and 5bb cells design, lower series resistance and higher conversion efficiency.Q: What kind of certification do you have? A: Power from 3W to 700 with TUV,IEC61215/IEC61730,CEC,CE,UL,ETL,PID,ISO.MCS,etc. Q: What is the warranty of solar panels? A: 10 years warranty on material and workmanship, 25 years power warranty (90% power output in 10 years,80% in 25 years) Q: Can you quote me the best price? A: We need more information about your demands, such as the power/material/Qty/etc, then We can suggest the suitable type and quote the best price for you. Q: Can I just order some samples of small quantity? A: Sample order in small quantity is acceptable.
Mechanical Parameters Working Conditions
Cell(mm) Poly 156.75x156.75 Maximum System Voltage DC 1000V(IEC)
Weight(kg) 22.5 Operating Temp. -40℃~+85℃
Dimensions(L*W*H)(mm) 1956x992x35 Maximum Series Fuse(A) 20
Cable Length(mm) ≥300 Static loading 5400Pa
Cable cross section size(mm2) 4 Grounding conductivity <0.1Ω
No. of cells and connections 72(12x6) NOCT 45±2℃
No. of diodes 1 Application Class Class A
Packaging 21pcs per pallet Insulation Resistance ≥100MΩ
Guarantee
10-year Warranty for Materials and Processing25-year Warranty for Extra Linear Power Output.
Electrical Characteristics Test Uncertainty For Pmax:±3%
Model Number

YFT-325-6PA

YFT-330-6PA

YFT-335-6PA

YFT-340-6PA

Testing Condition

STC

NOCT

STC

NOCT

STC

NOCT

STC

NOCT

Rated Maximum Power at STC(w)

325

235

330

239

335

249

340

253

Open Circuit Voltage(Voc/V)

45.79

42.24

45.95

42.44

46.0

43.8

46.2

44.0

Maximum Power Voltage(Vmp/V)

37.49

34.37

37.63

34.54

37.6

35.6

37.8

34.9

Short Circuit Current(Isc/A)

9.02

7.20

9.12

7.26

9.35

7.52

9.42

7.98

Maximum Power Current(Imp/A)

8.67

6.87

8.77

6.94

8.91

6.99

8.99

7.05

Module Efficiency(nm/%)

16.8

17.0

17.3

17.5

Power Tolerance 0~ +5W
Temperature Coefficient of Isc +0.059%/℃
Temperature Coefficient of Pmax 0.410%/℃
STC(Standard Testing Conditions):Irradiance 1000W/㎡,Cell Temperature 25℃,Spectra at AM1.5
NOCT(Nominal Operating Cell Temperature):Irradiance 800W/㎡,Ambient Temperature 20℃,Spectra at AM1.5,Wind at 1m/S
Our rounds out its service portfolio based on every customer's demands, because we think the customer's satisfacti--on is the motive force of growth for the company. Our skilled R&D engineers and customer support teams are always prepared to provide all-round services for our clients.31pcs/carton pallet 310pcs/20ft container 728pcs/40ft container

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