3RA1924-2B SIEMENS Filter Module

Description

3RA1924-2B SIEMENS Filter Module

Product Dimensions：

Product Description

Siemens Filter Modules are integrated into the control system architecture to suppress electromagnetic interference (EMI) that can originate from the power supply or high-speed switching components. These modules act as low-pass filters, allowing the standard operating current to pass while blocking or diverting unwanted high-frequency noise to the ground. They are typically installed at the point of power entry or adjacent to high-noise components like variable frequency drives. By stabilizing the electrical environment, these modules prevent erratic behavior in logic controllers and ensure the integrity of sensitive analog measurements.

Product Parameters

The technical performance of a filter module is defined by its attenuation capabilities and electrical limits:

• Rated Current: The maximum continuous current the module can handle without overheating or saturating the internal inductors.

• Input Voltage Range: Compatibility with standard industrial power systems, typically ranging from 24V DC to 480V AC depending on the application.

• Attenuation Characteristic: The measure of how effectively the module reduces noise, usually expressed in decibels (dB) across a specific frequency spectrum.

• Leakage Current: The amount of current that flows to the protective earth (PE) during operation, which is a critical factor for safety and RCD tripping.

• Insertion Loss: The ratio of the signal level without the filter to the signal level with the filter, indicating the efficiency of the suppression.

• Operating Temperature: The thermal range within which the module can maintain its specified filtering performance.

Product Advantages

Incorporating filter modules into an automation cabinet provides several critical benefits:

• System Stability: Significantly reduces the risk of CPU resets, communication errors, and signal jitter caused by electrical noise.

• Regulatory Compliance: Helps the entire control cabinet meet international EMC standards required for industrial and commercial environments.

• Extended Equipment Life: Protects downstream electronic components from high-frequency voltage peaks that can lead to premature insulation failure.

• Noise Isolation: Prevents noise generated by one component from polluting the rest of the system’s power bus.

Precautions for Use

To ensure the filter module operates effectively, the following installation and maintenance guidelines are required:

• Proper Grounding: The module must have a low-impedance connection to the protective earth; without a solid ground, the noise suppression capabilities are virtually neutralized.

• Wiring Separation: Input (dirty) lines and output (clean) lines should be routed separately to prevent the “cross-talk” of noise bypassing the filter.

• Correct Sizing: The module must be rated for the total current load of all connected devices to avoid saturation and potential fire hazards.

• Mounting Position: To be most effective, filters should be mounted as close as possible to the source of interference or the entry point of the power supply.

Product Applications

Filter modules are essential in environments where electrical cleanliness is paramount:

• High-Precision Manufacturing: Protecting sensitive sensors and controllers in environments with heavy switching noise from welding or plasma cutting.

• Variable Speed Drive Systems: Suppressing the high-frequency harmonics generated by the fast switching of power transistors in motor controllers.

• Telecommunications and Data Centers: Ensuring stable power for communication processors and networking hardware within the PLC rack.

• Medical and Laboratory Automation: Maintaining signal purity for highly sensitive analog inputs used in diagnostic or testing equipment.

Shipping Port: Xiamen, China

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