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Siemens ST20 Solar Panel
  

Small Power and High Quality
 The Siemens ST20 solar panel converts energy from sunlight directly into electricity. It operates silently without traditional fuel, waste or pollution. Designed for use in 12 volt systems, the ST20 performs efficiently in all operational conditions. Its distinctive ability to deliver battery-charge power levels in low-light situations makes it particularly effective for specialized applications and in adverse or changeable environments.

Engineered for durability and ease of use, the ST20 is manufactured under strict quality controls in ISO 9001 certified facilities. * If shipping to Canada, please contact us before purchasing.

 

Siemens ST20 Solar Panel
Price: $US199.95*
Call or email
ST20
    
Electrical Parameters   12V
Maximum power rating, Pmax1 [Watts] 20
Rated current, Impp [Amps] 1.29
Rated voltage, Vmpp [Volts] 15.6
Short circuit current, Isc [Amps] 1.48
Open circuit voltage, Voc [Volts] 21.0
Thermal Parameters    
Nominal operating cell temperature2 [°C] 47+/-2
Change of Isc with temperature   0.26mA/°C
Change of Voc with temperature   -0.1 Volts/°C
Qualification Test Parameters    
Temperature cycling range [°C] -40 to +85
Maximum system voltage [Volts] 25.0
Wind loading or surface pressure [N/m²] (lb/sqft) [2400]
(50)
Maximum distortion3 [degrees] 1.2

Hailstone impact

Inches [mm]
MPH [m/s]		 1.0 [25]
52 [v=23]
Physical Parameters    
Length [mm] (in) 329 (13.0)
Width [mm] (in) 748 (29.5)
Depth [mm] (in) 35 (1.3)
Weight [kg] (lb) 4.1 (8.84)
Warranty4    
Power output warranty [Years] 10
1 Wp(Watt peak) = Peak Power. (Minimun Wp = 18 Watts). Determined under standard test conditions (STC): Irradiance = 1000w/m² cell temperature = 25 °C; solar spectral irradiance per ASTM E892 (Air Mass = 1.5).
2 Determined under nominal operating conditions (NOC): Irradiance = 800 w/m² ambient temperature = 20 °C; wind speed = 1m/s.
3 Diagonal lifting of module corner with three corners fixed.
4 To original consumer purchaser. See full Limited Warranty for all conditions.

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