24 volts nonstop – with each SITOP power supply

SITOP power supply

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 95%, for example, tools to make product selection and ordering quick and easy, and comprehensive support for your design processes.

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Top integration. Top efficiency. Top reliability.

SITOP

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. Top integration. Top efficiency. Top reliability. SITOP

SITOP compact – the slim power supply for control boxes

SITOP compact are slim and highly efficient power supplies for the lower power range. They are ideally suited for decentralized applications.

LOGO!Power – the flat power supply for distribution boards

The miniature power supply units in the LOGO! 8 module design take up very little space but offer lots of power. They can be deployed in a large number of applications in the lower power range.

SITOP lite – the low-cost basic power supply

SITOP lite is the power supply series for basic requirements in the industrial environment, offering all the important functions at a low cost – without compromising quality and reliability.

SITOP smart – the powerful standard power supply

SITOP smart is the optimal power supply for many 24 V and 12 V applications, featuring compact design, powerful performance, and low price.

SITOP modular – the technology power supply for demanding solutions

SITOP modular provides maximum functionality and reliability for use in complex plants and machines.

SITOP PSU8600 – the modular power supply system with integrated PROFINET communication

The modular SITOP PSU8600 power supply system is completely integrated into Totally Integrated Automation and is integrated directly into networked machines and systems via its Ethernet/PROFINET interface.

SITOP in SIMATIC design – the optimal power supply for SIMATIC S7 and more

The design and functionality of the original SIMATIC power supplies merge into the PLC network. Of course, they also supply other loads reliably with 24 V.

Special designs and uses – power supplies for specific tasks

Restricted installation conditions, harsh environmental conditions, or special input and output voltages: these standard power supplies meet even exceptional requirements.

Add-on modules – for increasing system availability to all-round protection

A power supply unit on its own cannot guarantee fault-free 24 V supply. Power failures, extreme variations in the mains voltage, or a faulty load can bring plant operation to a standstill. The add-on modules offer reliable protection against interference on the primary and secondary side.

DC UPS – uninterruptible power supplies

Always reliable, even when the power fails: the maintenance-free DC UPS modules with capacitors enable 24 V buffering in the minutes range and the DC UPS modules with batteries enable buffering in the hours range. These can be incorporated into the system via Ethernet/PROFINET.

SITOP anniversary, jan 1, 2018

25 years of SITOP – the heart of automation

For 25 years, SITOP has been reliably supplying the right voltage to countless plants in the manufacturing and process industry around the world. Join us in celebrating the anniversary of our innovative power supplies – and save 25% with our two exclusive SITOP anniversary packages!

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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.

Power supplies with OPC UA - Open communication up to the cloud

The SITOP devices with PROFINET connection now have an integrated OPC UA server. This allows you to use the power supply system SITOP PSU8600 and integrate the UPS1600 uninterruptible power supply into the cloud - like the MindSphere from Siemens. With this unique transparency, your 24 V supply is "Ready for Industry 4.0". So you can, for example, display status and alarm messages, as well as current energy data from a smart watch - that's digitalization!

Reliability with the selectivity module PSE200U: Availability is our mission – and yours?

The SITOP PSE200U selectivity module distributes the load current across several 24 V DC load circuits and monitors them reliably for overload and short-circuit conditions. The electronics permit brief current peaks caused, for example, by high inrush currents, but isolate 24 V DC load circuits in the event of an extended overload. The SITOP PSE200U continues to supply 24 V DC to the load circuits not affected by an overload – a feature which avoids a possible total system failure.

Smart. Clever. LOGO!Power. Discover the new generation.

Whether it’s for industrial or building automation, the fourth generation of the mini power supply units used in their millions around the world for LOGO! 8 modules and other applications offers even more power in an even smaller space. The eleven new LOGO!Power devices for 5 V, 12 V, 15 V and 24 V with standby losses of less than 0.3 W and an efficiency rating of up to 90% offer even higher energy efficiency. The efficient current monitor measures output current at any time without breaking the line and thus the DC power supply. And it can also be wall-mounted in addition to mounting on DIN rails, even in very cold environments with temperatures down to -25°C. All this in a unit that’s 18 mm narrower for every performance class!

The faster way to the right power supply: SITOP in the TIA Selection Tool

Choose, configure and order the right power supply quickly and easily: find out here how you can use the TIA Selection Tool to select the SITOP power supply units you need for your project, under Device Family. Various SITOP product lines are available for selection. A device wizard shortens your path to the suitable power supply – simply enter your technical requirements and the tool shows a tailored display of suitable devices.

Download TIA Selection Tool

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.

Application notes

Brochures & Flyers

Ordering tools and Catalogs

The fastest way to the experts

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

Support Request (SIOS)

The fastest way to the experts

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

Special investigation

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

You can have a bad history with your power supply. Or you can write history with it.

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.
Reference| Fest AG
Hydropower Museum, Ziegenrück

State-of-the-art power supply for historic hydroturbine

  • When it upgraded its electrical equipment at the Hydropower Museum, Fest AG opted for a three-phase (40 A) SITOP power supply to provide all of the automation technology with electricity.

  • A SITOP UPS1600 (20 A) uninterruptible power supply (UPS) with a battery module ensures that the facility can be returned to a safe state if a power outage occurs.

  • It’s particularly important to ensure 24 V power is available to slow the turbine when necessary, to prevent it from running out of control and the consequential damage that would be involved.

Learn more
Application | Power supply concepts for PCS 7

24 V DC power supply concepts for the process industry

  • The SITOP library provides modules and faceplates for preferred power supply strategies, which can be directly incorporated into SIMATIC PCS 7.

  • PCS 7 users automatically receive information about operating statuses, maintenance requirements and faults in the 24 V power supply.

  • Support is provided for a redundant power supply, uninterruptible power supply, selective monitoring of 24 V feeders and SITOP PSU8600.

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Application | SITOP in the TIA Selection Tool

Just select the power supply you need for your automation project

  • The 24 V consumer view in the TIA Selection Tool makes it easy to select the SITOP power supply units for automation products selected within the tool, like SIMATIC S7, SIMATIC HMI or SCALANCE.

  • 24 V DC consumers – including external consumers – can be assigned to a SITOP power supply using drag-and-drop, enabling intuitive handling.

  • The power supply unit is selected depending on the power needs of the 24 V consumers – the electricity needed by the consumers is calculated accordingly. A redundant power supply arrangement can be achieved at the click of a mouse.

Watch the tutorial video
Application | Top efficiency with SITOP

Efficient power supply all the way

  • Select and order devices efficiently via the Web-based SITOP Selection Tool or the TIA Selection Tool

  • Data efficiency for CAD and CAE systems is provided by the CAx Download Manager (a time saving of 80%) and the My Documentation Manager manual configurator

  • Efficient assembly and handling, e.g. thanks to removable plug-in terminals and space-saving installation with no additional spaces at the sides – and efficiency ratings of up to 94% ensure energy efficiency in operation

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News & events

You can choose to ignore good news. Or you can read it.

Stay up to date. We’ll provide you with regular information about new SITOP product developments, functional expansions, trade fairs and events here.
Products

Flat 24 V/5 A and 10 A power supplies for distributed I/O devices

These flat power supply units measure just 75 mm and perfectly coordinated with the SIMATIC ET 200SP. The power monitor lets the ET 200SP diagnose load current, for example.  
Products

Expansion module with 8 outputs for SITOP PSU8600

The new CNX6800 8 x 2.5 A module enables the SITOP PSU8600 power supply system to be expanded to as many as 36 outputs. The outputs can be set to between 4 and 28 V with trip currents of between 0.5 and 2.5 A.
New product development

Smart. Clever. LOGO!Power.

Innovative mini power supplies now 18 mm narrower, new variations offering 12 V/0.9 A and 24 V/0.6 A, standby losses < 0.3 W and an efficiency rating of up to 90%. The current monitor makes it easy to measure output current at any time
New product development

Selectivity modules with NEC Class 2 certification

Electronic monitoring of four 24 V load circuits according to NEC Class 2: The new SITOP PSE200U with a common signaling contact or signal channel signaling limit the performance per output to a maximum of 100 VA.
Products

More independence for your plant network – with OPC UA

SITOP PSU8600 and SITOP UPS1600 are also available with a platform-independent OPC UA interface, as an alternative to PROFINET, for seamless communication with third-party applications.

Contact

You can invest a lot in your power supply. Or you can profit from it.

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. Top integration. Top efficiency. Top reliability. SITOP

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

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Related topics

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TIA Portal

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The TIA Portal provides you with access to complete digitalized automation, from planning and engineering to operation.

SIMATIC PCS 7 process control system

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PROFINET

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LOGO! logic module

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LOGO! is the perfect choice as a fast, uncomplicated and space-saving solution for basic control tasks.