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🧩 What is the Siemens SITOP Modular Range

Unlike the Classic, Advanced, and Smart ranges – which are based on single power supplies – the SITOP Modular family introduces a system concept.

The modular architecture allows you to:

• Combine multiple functional modules

• Adapt the power supply to the actual needs of the plant

• Increase reliability without redesigning the electrical panel

• Simplify maintenance and future expansions

This makes SITOP Modular particularly suitable for critical plants, complex automated lines, and applications where machine downtime is not acceptable.

📦 Root 6EP1931 – SITOP Modules for Redundancy and Power Management

The 6EP1931 root identifies SITOP Modular modules dedicated to power management and redundancy, essential for increasing system availability.

Key features:

• Smart management of multiple power supplies

• 24 V DC power supply redundancy

• Protection against single failures

• Service continuity in case of anomaly

Typical applications:

• Redundant electrical panels

• Critical control systems

• Continuous production lines

• High-reliability industrial plants

📦 Root 6EP1933 – SITOP Buffer Modules for Energy Continuity

The 6EP1933 series is dedicated to energy buffering, which means maintaining the power supply for a defined period in case of voltage drops or micro-interruptions.

Key features:

• Temporary energy storage

• Support for production continuity

• Protection of control systems

• Reduction of resets and process losses

Typical applications:

• Plants subject to network instability

• Critical PLC and HMI systems

• Automated lines sensitive to interruptions

• Complex industrial environments

📦 Root 6EP1935 – SITOP Modular Modules for Advanced Architectures

The 6EP1935 root completes the SITOP Modular ecosystem, allowing the creation of advanced, integrated, and easily scalable power architectures.

Key features:

• Integration with SITOP Modular systems

• Support for complex configurations

• High operational reliability

• Ease of expansion and maintenance

Typical applications:

• Large industrial plants

• Modular production lines

• Systems with high availability requirements

• Industry 4.0 architectures

🏗️ Why Choose a Modular Power Architecture

The modular approach offers concrete advantages over traditional systems:

• Scalability: the plant grows without radical redesigns

• Reliability: elimination of the single point of failure

• Simplified maintenance: targeted interventions on individual modules

• Production continuity: drastic reduction of plant downtime

These aspects make SITOP Modular a strategic choice for companies focused on production resilience.

🔄 SITOP Smart vs SITOP Modular: Intelligence vs Architecture

While the SITOP Smart range introduces intelligence and diagnostics in the individual power supply, SITOP Modular operates at a higher level, designing the entire power architecture of the plant.

The two solutions are not alternatives, but complementary:

• SITOP Smart → Control and diagnostics

• SITOP Modular → Redundancy and system continuity

🔧 E-Repair Services for Siemens SITOP Modular (6EP1931, 6EP1933, 6EP1935)

For Siemens SITOP Modular power supplies of the 6EP1931, 6EP1933, and 6EP1935 series, E-Repair – Siemens Approved Partner – Industry Services – offers a structured set of services dedicated to the production continuity of industrial plants.

Thanks to an in-house certified technical laboratory and processes compliant with Siemens standards, E-Repair can intervene on SITOP Modular power supplies both from a corrective and preventive perspective.

Available services:

• Certified Siemens repair
  Targeted interventions on electronic failures, with replacement of critical components subject to wear and full functionality restoration.

• Professional regeneration
  A structured process that brings the power supply back to operational conditions equivalent to new, with complete functional testing and final testing.

• Functional tests and load testing
  Each unit undergoes electrical and functional checks to ensure voltage stability and reliability in continuous operation.

• Production continuity support
  Alternative solutions (quick repair, regenerated, product advance) to minimize plant downtime.

• Cost/benefit technical consulting
  Support in choosing between repair, regeneration, or replacement, avoiding unnecessary and costly upgrades.

• Integration into the MAAS – Maintenance as a Service model
  SITOP Advanced services can be integrated into an advanced maintenance plan, focused on failure prevention and reducing TCO.

🔄 Added Value for Industry

E-Repair’s approach allows companies to:

• Extend the useful life of SITOP Advanced power supplies

• Reduce plant downtime costs

• Avoid forced retrofitting

• Maintain compatibility with existing Siemens architectures

• Improve reliability and sustainability of the supply chain

This model is particularly suitable for plants in continuous operation, where power supply is a critical element of the production process.

📌 Conclusion

The Siemens SITOP Modular series 6EP1931, 6EP1933, and 6EP1935 enable the design of robust, modular power systems oriented towards production continuity, meeting the needs of modern industrial plants.

In the next article, we will explore the theme of energy continuity, analyzing buffers, industrial UPS, and SITOP solutions dedicated to power protection.

🟢 Article derived and developed from technical content of E-Repair’s official channels.