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Siemens Reliability When it comes to reliable and environmentally-friendly generation of electrical power from sunlight, solar modules from Siemens provide the perfect solution. Manufactured in compliance with the most stringent quality standards, they are designed to withstand the toughest environmental conditions and are characterized by their long service life. |
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| Electrical Parameters1 | SP75 | SP70 | ||||
| 12V | 6V* | 12V | 6V* | |||
| Maximum power rating | Pmax | [Watts] | 75 | 70 | ||
| Minimum power rating | Pmin | [Watts] | 70 | 65 | ||
| Rated current | Imp | [Amps] | 4.4 | 8.8 | 4.25 | 8.5 |
| Rated voltage | Vmp | [Volts] | 17.0 | 8.5 | 16.5 | 8.25 |
| Short circuit current | Isc | [Amps] | 4.8 | 9.6 | 4.7 | 9.4 |
| Open circuit voltage | Voc | [Volts] | 21.7 | 10.9 | 21.4 | 10.7 |
| Thermal Parameters | ||||||
| Nominal operating cell temperature2 | [�C] | 45 | ||||
Change of Isc with temperature,
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+2.06mA/�C (+0.04%/�K) | |||||
Change of Voc with temperature,
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-0.077 Volts/�C (-0.34%/�K) | |||||
| Qualification Test Parameters3 | ||||||
| Temperature cycling range | [�C] | -40 to +85 | ||||
| Humidity, freeze, damp heat condition | [% RH] | 85 | ||||
| Maximum system voltage | [Volts] | 1000 per ISPRA (EC), 600 per UL 1703 |
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| Wind loading or surface pressure | [N/m�] (PSF) | 2400 (50) | ||||
| Maximum distortion4 | [degrees] | 1.2 | ||||
| Hailstone impact withstand (diameter @ velocity) |
[mm @ m/s] (in @ MPH) |
25 @ 23 (1.0 @ 52) |
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| Physical Parameters | ||||||
| Number of series cells | 36 | |||||
| Length | [mm] (in) | 1200 (47.3) | ||||
| Width | [mm] (in) | 527 (20.8) | ||||
| Depth | [mm] (in) | 34 (1.3) | ||||
| Weight | [kg] (lbs) | 7.6 (16.7) | ||||
| Warranty5 | ||||||
| Power >= 90% of minimum power | [Years] | 10 | ||||
| Power >= 80% of minimum power | [Years] | 25 | ||||
| * | If the designer chooses to use the 6-volt version in a high voltage array configuration, the designer must install custom large bypass diodes and heat sinks around every 6-volt parallel string. |
| 1 | Determined under standard test conditions (STC): Irradiance = 1000w/m� cell temperature = 25 �C; solar spectral irradiance per ASTM E892 (Air Mass = 1.5). |
| 2 | Determined under nominal operating conditions (NOC): Irradiance = 800 w/m� 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. |
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