Siemens Power Supplies - SITOP Overview
- May 28
- 2 min read

Bring Production to Life
Siemens SITOP is the heart of automation®. It's well-known for its extreme reliability for 24 V and other output voltages. With versatile DC UPS and add-on modules, it easily handles the most critical network conditions. Plus, comprehensive diagnostics and functions increase protection.
Discover advanced power supplies that meet the highest requirements in process and automotive industries, as well as, specialty machine manufacturing.
Regardless of the industry or the requirement, efficient and reliable power supply is the basic requirement for operating any plant. SITOP provides:
High efficiency: SITOP includes space-saving, heat-optimized design, low-energy consumption and data acquisition for energy management.
Easy integration: Enable easy, fast engineering, optimized monitoring and diagnosis, and 24 V supply concepts integrated into TIA Portal or SIMATIC Step 7 thanks to SITOP library.
High reliability: SITOP is protected against power failures with the aid of DC uninterruptible power supplies.
Explore Products
Gain all-around protection with SITOP, including advanced power supplies for demanding applications and coverage for any industrial requirements.

SITOP DC UPS
Ensure reliable 24-V supply during power failures with SITOP DC UPS modules. Choose battery modules for buffering up to several days or capacitor modules for high-cycle, high-temperature applications.
SITOP PDP6200
This IP65 decentralized power supply mounts directly on a machine, eliminating cabinets. It features 6 outputs and Safe-Torque-Off (PL d) to safely shut down loads while keeping the PLC controllable. Ideal for intralogistics.
SITOP PSU4200
The SITOP PSU4200 power supply saves space with a compact design and no lateral clearances. Push-in wiring ensures quick installation, while high efficiency (up to 93%) reduces costs and improves reliability.
SITOP PSU6200
The SITOP PSU6200 is a compact, high performance power supply for 12, 24, and 48V applications. Get permanent condition monitoring via its diagnostics interface and ensure fast, error-free wiring with push-in terminals.
SITOP PSU8400
Conveniently diagnose on-site via display or remotely with IO-Link. This rugged power supply delivers up to 96% efficiency, high power reserves, and a compact design for maximum reliability.
SITOP PSU8600
The SITOP PSU8600 modular power supply system fully integrates into automation via PROFINET, EtherNet/IP & OPC UA. Its diagnostic data enables predictive maintenance for high plant availability.
SITOP SEL1600
Protect up to 40 load circuits with the SITOP SEL1600. This modular selectivity system features bidirectional IO-Link for remote parameterization and diagnostics, ensuring reliable protection against overloads and short circuits.
SITOP Add-on Modules
Ensure a fault-free 24-V supply with SITOP add-on modules. Flexibly expand a system for all-round protection against power failures, voltage variations, and faulty loads, preventing costly plant standstills and high costs.
In today’s demanding industrial environments, power reliability isn’t just a feature—it’s a necessity. Power-Flo Technologies is proud to partner with Siemens SITOP as it delivers a comprehensive, future-ready solution that combines efficiency, flexibility, and intelligent diagnostics to keep operations running smoothly. From safeguarding against power interruptions to enabling predictive maintenance and seamless system integration, SITOP empowers businesses to minimize downtime, reduce costs, and optimize performance. No matter the application, investing in a robust power supply infrastructure like SITOP ensures a plant stays resilient, efficient, and ready for whatever comes next.
