SIEMENS UAC:FN344019113E2FAJRX Schaffner Line Harmonic Filter 18.5 kW 400V 50 Hz
The SIEMENS UAC:FN344019113E2FAJRX Schaffner Line Harmonic Filter is a critical component for industrial power systems, designed to mitigate harmonic distortion and ensure reliable operation of sensitive equipment. This advanced filter offers substantial advantages, including superior harmonic reduction, enhanced power quality, and robust protection for motors and drives. Its core features center on its high performance in reducing electromagnetic interference (EMI) and radio frequency interference (RFI), safeguarding connected machinery from electrical noise. Key technical parameters include a power rating of 18.5 kW, an operating voltage of 400V, and a frequency of 50 Hz, making it suitable for a wide range of demanding industrial applications.
Product Specifications
| Specification | Value |
| :-------------------- | :----------------------------------------------- |
| Product Type | Schaffner Line Harmonic Filter |
| SIEMENS Part Number | UAC:FN344019113E2FAJRX |
| Rated Power | 18.5 kW |
| Operating Voltage | 400V |
| Frequency | 50 Hz |
| Harmonic Attenuation | High |
| Protection Features | EMI/RFI Suppression |
| Application | Motor/Drive Protection, Power Quality Improvement |
Core Features & Market Positioning
The SIEMENS UAC:FN344019113E2FAJRX stands out in the market for its exceptional harmonic filtering capabilities, a crucial differentiator in industries grappling with increasing demands on power quality. Its Schaffner heritage signifies a commitment to robust engineering and reliable performance, positioning it as a premium solution for critical applications. Unlike basic filters, this unit employs advanced filter topologies to achieve superior attenuation of harmonic currents, thereby reducing motor heating, improving power factor, and extending the lifespan of variable frequency drives (VFDs) and other connected equipment. This focus on proactive power quality management makes it an indispensable asset for manufacturers seeking to optimize operational efficiency and minimize downtime.
Key Application Scenarios
This line harmonic filter is optimally deployed in scenarios where Variable Frequency Drives (VFDs) or other power electronic converters are extensively used, such as in manufacturing plants, water treatment facilities, and automated production lines. Its primary role is to suppress the harmonic currents generated by these non-linear loads, which can otherwise cause overheating, premature failure of motors, and interference with sensitive control systems. Applications requiring strict adherence to power quality standards, like those found in the automotive or pharmaceutical industries, benefit significantly from the enhanced grid compatibility and reduced electrical noise provided by the SIEMENS UAC:FN344019113E2FAJRX. It is particularly valuable in environments with long motor leads, where reflected wave phenomena can exacerbate voltage stress on motor insulation.
Practical System Integration Guidance
Integrating the SIEMENS UAC:FN344019113E2FAJRX into existing industrial electrical systems is straightforward, requiring adherence to standard wiring practices for power filters. The filter should be installed in series between the power supply and the VFD or load. Ensure proper grounding of the filter chassis to the electrical panel's ground bus for effective EMI shielding. The line-side terminals should connect to the incoming power, and the load-side terminals connect to the VFD or motor. For optimal performance, maintain short and direct connections between the filter and the VFD input terminals. Always consult the specific installation manual for detailed wiring diagrams and torque specifications for terminal connections.
Operation and Risk Mitigation
Proper operation of the SIEMENS UAC:FN344019113E2FAJRX ensures a stable electrical environment, minimizing risks associated with harmonic distortion. Key operational considerations include ensuring the filter's rated current and voltage capabilities are not exceeded by the connected load. Regular visual inspections for any signs of overheating or physical damage are recommended. In the event of a fault, the filter typically does not have active diagnostic outputs but relies on upstream protection devices like circuit breakers or fuses to indicate a problem. Common issues stem from incorrect installation or over-application; therefore, verifying system compatibility before commissioning is crucial for preventing potential risks and ensuring uninterrupted operation.
Scalability & Long-Term Value
The SIEMENS UAC:FN344019113E2FAJRX contributes to long-term value by enhancing the reliability and efficiency of connected equipment, thereby reducing maintenance costs and extending asset life. While this specific filter model is designed for a particular power rating, its integration into a well-designed power distribution system allows for modular scalability. Future expansions requiring similar harmonic mitigation can be addressed by installing additional units. Its passive filter design ensures longevity and minimal obsolescence, as it is compatible with a wide range of modern VFDs and control systems, supporting a robust industrial automation infrastructure without requiring constant upgrades to the harmonic filtering component itself.
Frequently Asked Questions
Q1: What is the primary function of the SIEMENS UAC:FN344019113E2FAJRX?
This filter significantly reduces harmonic distortion in electrical power systems. It protects sensitive equipment from harmful electrical noise. It improves overall power quality and system efficiency.
Q2: Can this filter be used with any VFD?
Compatibility depends on the VFD's power rating and voltage. Always check that the filter's 18.5 kW and 400V ratings match your application. Refer to the VFD manufacturer's guidelines for harmonic filter selection.
Q3: How does a line harmonic filter improve motor performance?
It reduces motor overheating caused by harmonic currents. It can prevent insulation breakdown in motor windings. This leads to longer motor lifespan and reduced maintenance needs.
Q4: What are the installation requirements for this SIEMENS filter?
Install it in series between the power source and the load. Ensure correct wiring to line and load terminals. Proper grounding of the filter chassis is essential for safety and performance.
Q5: What is the meaning of "harmonic distortion" in power systems?
It refers to unwanted frequencies added to the fundamental power sine wave. These are often generated by non-linear loads like VFDs. High distortion can cause equipment malfunction and inefficiency.
Q6: Is the SIEMENS UAC:FN344019113E2FAJRX a passive or active filter?
This particular model, UAC:FN344019113E2FAJRX, is a passive line harmonic filter. Passive filters use inductors and capacitors to attenuate harmonics. They do not require external power to operate.
Q7: What are the benefits of using a Schaffner filter from Siemens?
Schaffner is known for high-quality power filters. Siemens ensures robust design and reliable performance in demanding industrial settings. This combination offers excellent harmonic mitigation.
Q8: How does this filter protect against EMI/RFI?
Harmonics often contribute to electromagnetic interference. By reducing harmonics, the filter inherently lowers EMI/RFI. This prevents interference with control signals and communication systems.
Q9: What happens if the harmonic distortion is too high for the filter?
The filter's effectiveness may be reduced. Overloading can cause the filter to overheat. External protection devices will likely trip, leading to system shutdown.
Q10: Can this filter be used in 60 Hz systems?
This specific model is rated for 50 Hz. Using it in a 60 Hz system may alter its performance characteristics. It is crucial to use filters designed for the system's operating frequency.
