Popular design flat panel solar water heater for germany market

technical data

Type

SA260-72

SA270-72

SA280-72

Maximum power (Wp) 

260Wp

270Wp

280Wp

Maximum power voltage (V) 

36.00

36.00

36.00

Maximum power current (A)

7.23

7.50

7.78

Open circuit voltage (V) 

43.20

43.20

43.20

Short circuit current (A) 

7.95

8.25

8.55

Cell Efficiency (%) 

15.50%

16.00%

16.50%

FF (%) 

≥74%

Maximum system voltage (V)  

1000V

Temperature Range

-40°C to +85°C

Power tolerance (%)

±3%

Standard Test Conditions

  1000W/m², AM1.5 ,25’C

Mechanical Characteristics

Solar cell

 Poly 

 Poly 

 Poly 

Number of cells (Pcs)

72(6*12)

Size of module (mm) 

1930*980*46mm

Weight per piece (kg)

22.5

Front Glass

3.2 mm tempered glass

Surface Maximum Load Capacity

60m/s(200kg/sq.m)

Allowable Hail Load 

steel ball fall down from 1m height

Frame 

Anodized aluminium alloy

Junction Box Type 

IP65 rated

Connectors 

MC Plug Type IV connectors

Cables 

4.0mm², 900mm

Temperature coefficients 

Nominal Operating Cell Temperature

45±2ºC

Temperature coefficients of Voc (%)

β -2.2mV/°C

Temperature coefficients of Pm (%)

γ -0.55%/°C

Temperature coefficients of Im (%)

α 0.03%/°C

Temperature coefficients of Vm (%)

β -2.2mV/°C