6RA8025-6DS22-0AA0-ZL10 SIEMENS Filter Module

A Siemens Filter Module is a critical component designed to mitigate electrical interference and harmonics within industrial power and control systems. Its primary function is to ensure Electromagnetic Compatibility (EMC) by restricting conducted interference (noise) that a device (such as a power supply, drive, or frequency converter) may emit back into the power line, and/or to protect the device from noise present on the line.

These modules are typically passive components installed between the power source and the industrial device. They are essential for meeting international EMC standards and ensuring the reliable operation of sensitive electronic equipment nearby.

Product Parameters

General parameters associated with Siemens Filter Modules include:

• Rated Voltage ($U_N$): The maximum voltage the filter is designed to handle (e.g., 400V AC, 690V AC, etc.).
• Rated Current ($I_N$): The maximum continuous current the filter can safely carry.
• Filter Category (e.g., C2, C3): Specifies the conducted emission limits the filter helps the system meet, often defined by standards like EN 61800-3 (e.g., C2 for public low-voltage networks, C3 for industrial environments).
• Insertion Loss: A measure of the filter’s effectiveness across a specific frequency range (typically given in dB).
• Connection Type: The method of connecting the module (e.g., screw terminals, busbar connection).
• Form Factor: Compact design, often optimized for cabinet mounting near the device it protects (e.g., alongside a drive).

Product Advantages

• EMC Compliance: Enables industrial equipment (especially variable speed drives, which are significant noise sources) to comply with stringent national and international electromagnetic compatibility standards.
• System Reliability: Prevents high-frequency noise and voltage transients from polluting the supply network, ensuring the reliable operation of sensitive control, measurement, and communication components in the vicinity.
• Component Protection: Protects the connected equipment from potentially damaging interference that may be present on the power line.
• Installation Simplicity: Designed for easy integration and wiring within the control cabinet, ensuring optimal shielding and grounding performance.
• Performance Optimization: When used with power electronics, the filter helps maintain the overall efficiency and lifespan of the primary component (e.g., the drive).

Precautions

• Grounding: Proper grounding is absolutely critical for the filter module to function correctly and safely. The connection to the protective earth (PE) must be low-impedance and follow all documentation guidelines.
• Wiring Separation: High-frequency, unfiltered power cables must be routed separately from filtered cables and sensitive signal or control cables to prevent inductive coupling (crosstalk).
• Rated Values: Never operate the module above its specified Rated Voltage or Rated Current.
• Heat Dissipation: Ensure the module is installed with sufficient spacing for proper cooling, as internal power dissipation occurs.
• Qualified Personnel: Installation and maintenance must only be performed by qualified personnel in accordance with the relevant safety and technical documentation.

Product Applications

Siemens Filter Modules are primarily used wherever high-power electronic devices interact with the electrical grid and sensitive control systems:

• Variable Speed Drive Systems: Most commonly used with AC and DC drives (frequency converters) to suppress the high-frequency switching noise generated by the drive’s power section (e.g., IGBTs).
• Power Supplies: Installed to ensure that high-current industrial power supplies do not inject excessive noise into the grid.
• Motor Applications: Used in systems with long motor cables to reduce high-frequency current peaks and standing waves.
• Automation Cabinets: Utilized in general industrial control panels to condition power and protect automation equipment (PLCs, HMIs) from line disturbances.