6GK5791-2AC00-0AA0

**6GK5791-2AC00-0AA0** 

**Data sheet** 

**product type designation** 

## **Power Supply PS791-2AC** 

- - spare part - - Power Supply PS 791-2AC, AC/DC power supply unit, 10 W, IP65 (-40...+70 °C), input: 90... 240 V AC, 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 PS791-2AC**|
|---|---|
||- - spare part - - Power Supply PS 791-2AC, AC/DC power supply unit, 10 W, IP65<br>(-40...+70 °C), input: 90... 240 V AC, 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: 90 - 240 V AC, output: 18 V DC<br>~~Oo~~|
|Technical Product Detail Page<br>~~Oo~~|https://i.siemens.com/1P6GK5791-2AC00-0AA0<br>~~Oo~~|
|**electrical data / input**||
|**supply voltage / 1 / rated value**||
|● supplyvoltage / 1 / rated value|100 ... 240 V|
|● type of voltage / 1 / of the supplyvoltage|AC|
|buffering time / for rated value of the output current / in the<br>event ofpower failure / minimum<br>~~Oo~~|20 ms; 14,4<br>~~Oo~~|
|line frequency<br>~~Oo~~|45 ... 65 Hz<br>~~Oo~~|
|**electrical data / output**||
|output voltage||
|● 1 / at DC / rated value|18 V|
|supplied active power / typical|14.4 W|
|**electrical data / safety**||
|operatingresource protection class|VDE 0805, VDE 0100|
|**interfaces**<br>~~|~~||
|type of electrical connection<br>~~|~~|~~|~~|
|● at input|3-pole screw-type terminal for ACpower|
|● at output|4 pin connector|
|**design, dimensions and weights**<br>~~|~~||
|width<br>~~|~~|133 mm<br>~~|~~|
|height<br>~~Oe~~|45 mm<br>~~Oe~~|
|depth<br>~~Oe~~|30 mm<br>~~Oe~~|
|net weight<br>~~Oe~~|0.209 kg<br>~~Oe~~|
|**ambient conditions**||
|ambient temperature||
|● duringoperation|-40 ... +60 °C|
|protection class IP|IP65|
|**standards, specifications, approvals**||
|standard||
|● for safety/ from CSA and UL|EN 60950, UL 60950-1|
|Marine classification association||
|● French marine classification society (BV)<br>~~Oo~~|Yes<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|



6GK57912AC000AA0 Page 1/2 

Subject to change without notice © Copyright Siemens 

5/27/2026 

|certificate of suitability / CCC / for hazardous zone according to|certificate of suitability / CCC / for hazardous zone according to|certificate of suitability / CCC / for hazardous zone according to|Ex nA IIC T4 Gc||
|---|---|---|---|---|
|GB standard / as marking|||||
|**further information / internet links**<br>~~ae~~|||||
|internet link|||||
|● to website: Selectionguide for cables and connectors|||https://support.industry.siemens.com/cs/ww/en/view/109766358||
|● to webpage: selection aid TIA Selection Tool|e: selection aid TIA Selection Tool||https://www.siemens.com/tstcloud||
|● to website: Industrial communication|||https://www.siemens.com/simatic-net||
|● to webpage: 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: IndustryOnline Support|||https://support.industry.siemens.com||
|**security information**<br>~~|~~|||||
|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**<br>~~ee~~|||||
|**General Product Approval**|||||
|Declaration of Con-<br>formity<br>~~—~~|¢é||China RoHS<br>|||
|**General Product Approval**||**EMV**|**For use in hazardous locations**||
|China RoHS<br>~~&~~<br>~||f¢|FM<br>&<br>:||
|**For use in hazard-**<br>**ous locations**<br>**Radio Equipment**<br>**Type Approval Certi-**<br>**ficate**||**Test Certificates**<br>**Maritime application**|||
|CCC-Ex<br>Miscellaneous<br>~~7~~||inspection certificate<br>©<br>©<br>&<br>PVERITAS||||
|**Maritime application**|||||
|NK / Nippon Kaiji Ky<br>a|NK / Nippon Kaiji Ky-<br>okai||||
|**last modified:**|||3/10/2026<br>cy||



6GK57912AC000AA0 Page 2/2 

Subject to change without notice © Copyright Siemens 

5/27/2026