6GK5791-2DC00-0AA0

**6GK5791-2DC00-0AA0** 

**Data sheet** 

**product type designation** 

## **Power Supply PS791-2DC** 

- - spare part - - Power Supply PS 791-2DC, DC/DC power supply unit, 10 W, IP65 (-40...+70 °C), input: 12 ... 24 V DC, output: 18 V DC, can only be used in connection with SCALANCE W786; scope of delivery: operating instructions, German/English. 

|**product type designation**|**Power Supply PS791-2DC**|
|---|---|
||- - spare part - - Power Supply PS 791-2DC, DC/DC power supply unit, 10 W, IP65<br>(-40...+70 °C), input: 12 ... 24 V DC, output: 18 V DC, can only be used in<br>connection with SCALANCE W786; scope of delivery: operating instructions,<br>German/English.|
|product brand name<br>~~Oo~~|SCALANCE<br>~~Oo~~|
|type of current supply<br>~~Oo~~|10 W, input: 12-24 V DC, output:18 V DC<br>~~Oo~~|
|Technical Product Detail Page<br>~~Oo~~|https://i.siemens.com/1P6GK5791-2DC00-0AA0<br>~~Oo~~|
|**electrical data / input**||
|**supply voltage / 1 / rated value**|12 V|
|● supplyvoltage / 1 / rated value|9 ... 32 V|
|● type of voltage / 1 / of the supplyvoltage|DC, safetyextra-low voltage(SELV)|
|**supply voltage / 2 / rated value**|24 V|
|● supplyvoltage / 2 / rated value|9 ... 32 V|
|● type of voltage / 2 / of the supplyvoltage|DC, safetyextra-low voltage(SELV)|
|buffering time / for rated value of the output current / in the<br>event of power failure / minimum|14,4|
|**electrical data / output**<br>~~ee~~||
|output voltage<br>~~ee~~|~~ee~~|
|● 1 / at DC / rated value|18 V|
|supplied active power / typical|14.4 W|
|**electrical data / safety**<br>~~|~~||
|operatingresource protection class<br>~~|~~|VDE 0805, VDE 0100<br>~~|~~|
|**interfaces**<br>~~ee~~||
|type of electrical connection<br>~~ee~~|~~ee~~|
|● at input|4-pole screw-type terminal for DCpower|
|● at output|4 pin connector|
|**design, dimensions and weights**<br>~~|~~||
|width<br>~~|~~|133 mm<br>~~|~~|
|height<br>~~Oo~~|45 mm<br>~~Oo~~|
|depth<br>~~Oo~~|30 mm<br>~~Oo~~|
|net weight<br>~~Oo~~|0.223 kg<br>~~Oo~~|
|**ambient conditions**||
|ambient temperature||
|● duringoperation<br>~~Oo~~|-40 ... +70 °C<br>~~Oo~~|
|protection class IP<br>~~Oo~~|IP65<br>~~Oo~~|
|**standards, specifications, approvals**||
|standard||
|● for safety/ from CSA and UL<br>~~Oo~~|EN 60950, UL 60950-1<br>~~Oo~~|
|product function / is supported / identification link<br>~~Oo~~|Yes; acc. to IEC 61406-1:2022<br>~~Oo~~|
|**standards, specifications, approvals / hazardous environments**||
|certificate of suitability / CCC / for hazardous zone according to<br>GB standard|Yes; GB3836.1, GB3836.8|



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||||||||
|---|---|---|---|---|---|---|
|certificate of suitability / CCC / for hazardous zone according to|Ex nA IIC T4 Gc|
|GB standard / as marking|
|a|further information / internet links|
|internet link|
|● to website: Selection guide for cables and connectors|https://support.industry.siemens.com/cs/ww/en/view/109766358|
|● to web page: selection aid TIA Selection Tool|https://www.siemens.com/tstcloud|
|● to website: Industrial communication|https://www.siemens.com/simatic-net|
|● to web page: SiePortal|https://sieportal.siemens.com/|
|● to website: Image database|https://www.automation.siemens.com/bilddb|
|● to website: CAx-Download-Manager|https://www.siemens.com/cax|
|● to website: Industry Online Support|https://support.industry.siemens.com|
|security information|
|ey|
|security information|Siemens provides products and solutions with industrial cybersecurity functions|
|that support the secure operation of plants, systems, machines and networks.|
|In order to protect plants, systems, machines and networks against cyber|
|threats, it is necessary to implement - and continuously maintain - a holistic,|
|state-of-the-art industrial cybersecurity concept. Siemens’ products and|
|solutions constitute one element of such a concept. Customers are responsible|
|for preventing unauthorized access to their plants, systems, machines and|
|networks. Such systems, machines and components should only be connected|
|to an enterprise network or the internet if and to the extent such a connection is|
|necessary and only when appropriate security measures (e.g. firewalls and/or|
|network segmentation) are in place. For additional information on industrial|
|cybersecurity measures that may be implemented, please visit|
|www.siemens.com/cybersecurity-industry. Siemens’ products and solutions|
|undergo continuous development to make them more secure. Siemens strongly|
|recommends that product updates are applied as soon as they are available|
|and that the latest product versions are used. Use of product versions that are|
|no longer supported, and failure to apply the latest updates may increase|
|customer’s exposure to cyber threats. To stay informed about product updates,|
|subscribe to the Siemens Industrial Cybersecurity RSS Feed under|
|https://www.siemens.com/cert. (V4.7)|
|||Approvals / Certificates|
|General Product Approval|
|Declaration of Con-|China RoHS|
|formity|
|ce|~|@©@|HH|£®|
|For use in hazard-|
|General Product Approval|EMV|ous locations|
|&S|¢€¢|China RoHS|~~|ea|Kk|®&|
|Radio Equipment|
|For use in hazardous locations|Type Approval Certi-|Test Certificates|Maritime application|
|ficate|
|-|FM|-—|CCC-Ex|——@|Miscellaneous|inspection certificate|
|Maritime application|

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**last modified:** 

3/10/2026 

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Subject to change without notice © Copyright Siemens 

5/29/2026 

6GK57912DC000AA0 Page 3/3 

Subject to change without notice © Copyright Siemens 

5/29/2026