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 95%, 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. Top integration. Top efficiency. Top reliability. SITOP

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

Contact us

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

Digital Enterprise SPS Dialog
Virtual Event, Nov 26

Digital Enterprise SPS Dialog

Join us live for this interactive virtual event. Explore our SPS highlights in our brand-new showroom in 3D. Be inspired from top-level industry speakers and discuss with our Digital Enterprise experts.

SITOP starter package

On the fast track with the SITOP starter package

Get a 10% discount on the unit price and experience the benefits of our 1-phase PSU6200 power supply in combination with an 8-channel SEL1200 selectivity module.


The SITOP starter package 6EP3336-7SB00-3AP0 consists of

  • 24 V power supply: SITOP PSU6200, 1-phase, DC 24 V/20 A: 6EP3336-7SB00-3AX0
  • 24 V protection: SITOP SEL1200, DC 24 V/8x10 A: 6EP4438-7FB00-3DX0
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.

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.
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.
Special Promotion

Thunder Bundle

Are you paying too much for your basic automation system? The Thunder Bundle consists of a basic controller, HMI panel and power supply. You don’t need to pay a premium for a state-of-the-art basic automation system. Available for a limited time only.
Order Number
Catalog Number
KTP400 Basic Panel
SITOP PSU100C, 1-phase, 24 V DC/4 A Power Supply
CPU 1212C (8 DI 24V DC; 6 DO 24VDC ; 2 AI), PS 24V DC Controller
Order Number
Catalog Number
KTP700 Basic HMI Panel
SITOP PSU6200, 1-phase, 24 V DC/5 A Power Supply
CPU 1214C (14 DI 24V DC; 10 DO 24VDC ; 2 AI), PS 24V DC Controller
Order Number
Catalog Number
KTP700 Basic HMI Panel
SITOP PSU8200, 1-phase, 24 V DC/5 A Power Supply
CPU 1215C (14 DI 24V DC; 10 DO 24VDC ; 2 AI; 2AO), PS 24V DC 2PN Controller


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