24 volts nonstop – with each SITOP power supply

SITOP – The heart of automation®

Thanks to their high reliability, our SITOP power supply units are globally recognized for their high reliability and for their coping with critical network conditions. Our full range of switched-mode power supply units provides a controlled 24 V DC power supply and other input voltages. Our unique spectrum of DC UPS and add-on modules extends our power supply range to protect the 24 V supply against mains problems and problems on the DC side. SITOP is also top-notch when it comes to efficiency, thanks to an efficiency rating of up to 96%, for example, tools to make product selection and ordering quick and easy, and comprehensive support for your design processes. And in terms of integration, complete integration in Totally Integrated Automation and the TIA Portal via PROFINET gives you unique opportunities for engineering and diagnostics. 

Would you like to know more about SITOP power supply units?

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SITOP starter package 2

Teamwork at its best – with the SITOP PSU6200 starter package II

Get a 20% discount on the unit price and experience the benefits of our 1-phase PSU6200 power supply (24 V DC/10 A) in combination with an 4-channel SEL1400 selectivity module.


The SITOP starter package 6EP3334-7SB00-3AP0 consists of

  • SITOP PSU6200, 1 AC, 24 V/ 10 A: 6EP3334-7SB00-3AX0
  • SITOP SEL1400, 4 x 10 A: 6EP4437-7EB00-3CX0
You can find the SITOP starter package in our Industry Mall:

Go to the starter package

Trends & Topics

SITOP power supply highlights

An efficient power supply is a basic requirement for operating any plant, no matter the industry or need. Critical production processes can only be maintained if a constant power supply of the necessary quality is available for the automation system. SITOP has proven its value in the manufacturing environment over many years, and is always setting new standards in terms of integration, efficiency and reliability.

Three good reasons for SITOP


With SITOP, efficiency starts with the easy selection of devices using the TIA Selection Tool or with design data for all standard CAE systems. The compact and heat-optimized design saves installation space. And in operation, the high efficiency ratings save power, while SITOP PSU8600 records the energy data from all the power management outputs.



SITOP PSU8600 and UPS1600 being completely integrated into Totally Integrated Automation (TIA) and the TIA Portal makes engineering easier and faster, and allows optimized monitoring and end-to-end diagnostics. The SITOP library also makes it possible to incorporate 24 V supply concepts directly into SIMATIC PCS 7.



As they have flexible, wide-range input, outstanding load characteristics and all the relevant certifications, SITOP power supplies guarantee the availability of plants, preventing outages with uninterruptible DC power supplies and preventing overloads and short-circuits in the control circuit using add-on modules. A redundant power supply can also be set up.

Use the TIA Selection Tool to select your SITOP power supply, add-on modules, and DC UPS

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Overview of SITOP product lines

What an optimal power supply looks like depends on numerous factors – size, power output, overload capacity and certification, to name but a few. The extensive range of SITOP products ensures that your power supply will always match your requirements.
Downloads, Support, Services

Additional information for all cases

Download brochures, flyers and ordering documentation with more details on the SITOP power supply units here. Support links take you to SITOP-specific references, FAQs, manuals, product notes and technical data. Discover our range of practical services at the same time.

The fastest way to the experts

Proposed solutions for your queries and direct access to our experts in Technical Support

Special investigation

Special investigations analyze the causes of problems that have been occurring more frequently with no explanation.

Logistical handling of returned goods from service processes

Central returns processing at the Service Logistics Center in Erlangen        
Return delivery address: Siemens AG Retouren Center c/o Geis Industrie-Service GmbH, Tor 1-4, Kraftwerkstr. 25a, 91056 Erlangen, Germany

References & applications

Experience unique success stories with SITOP power supply

More than twenty years ago, Siemens began a unique success story in the power supply sector. Since then, SITOP has demonstrated in countless installations how reliability, efficiency, and integration can be guaranteed permanently at the highest level in all industrial sectors. SITOP has also shown it is able to deal with all applications.


SITOP – The heart of automation®

SITOP is a complete, perfectly coordinated portfolio offering you a reliable power supply that will meet today’s increasing demands. And we are continuing to refine our SITOP power supply units to make sure it continues to do so. Stay up to date.

If you would like to know more about our SITOP power supply units:

Contact us