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High Quality
Siemens Solar has established very high quality standards and as a result our main production plants are certified to ISO 9001. Constant checks and inspections guarantee uniform high quality. Every module that leaves the production line is subject to thorough visual inspections as well as mechanical and electrical tests.

The SM20 datasheet is also available in the Adobe Acrobat (.PDF) format.

SM20

Electrical Parameters 1

Maximum power rating

Minimum power rating

Rated current

Rated voltage

Short circuit current

Open circuit voltage

Pmax

Pmin

Imp

Vmp

Isc

Voc

Thermal Parameters

Nominal operating cell temperature2

Change of Isc with temperature,

Change of Voc with temperature,

Qualification Test Parameters3

Temperature cycling range

Humidity, freeze, damp heat condition

Maximum system voltage

Wind loading or surface pressure

Maximum distortion4

Hailstone impact withstand
(diameter @ velocity)

Physical Parameters

Number of series cells

Length

Width

Depth

Weight

Warranty5

Power >= 90% of minimum power

 

[Watts]

[Watts]

[Amps]

[Volts]

[Amps]

[Volts]

 

[°C]

 

 

 

[°C]

[% RH]

[Volts]

[N/m²] (PSF)

[degrees]

[mm @ m/s]
(in @ MPH)

 

 

[mm] (in)

[mm] (in)

[mm] (in)

[kg] (lbs)

 

[Years]

SM20

12V

20

18

1.38

14.5

1.6

18.0

 

45

+0.6mA/°C (+0.04%/°K)

-0.058 Volts/°C (-0.34%/°K)

 

-40 to +85

85

20

2400 (50)

1.2

25 @ 23
(1.0 @ 52)

 

30

567 (22.3)

328 (12.9)

35 (1.4)

2.5 (5.6)

 

10

1

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

Qualification Tests performed as per CEC 503 Test Specification, to ensure durability and performance in outdoor conditions.

4

Diagonal lifting of module corner with three corners fixed.

5

To original consumer purchaser. See full Limited Warranty for all conditions.