ABB 3HAC7344-1 Main Line Filter Unit

ABB 3HAC7344-1 Main Line Filter Unit

Product Overview

The ABB 3HAC7344-1 mainline filter unit is a high-performance electromagnetic interference (EMI) suppression device developed specifically for industrial automation scenarios. It is deeply integrated with the Corcom EMI Filter Unit and is a key component to ensure the stable operation of industrial control systems. In industrial environments, electromagnetic interference generated by the operation of electrical equipment can affect the accuracy of signal transmission and the normal operation of equipment. This filter unit filters noise and interference signals in the power grid, purifies the power supply, and provides stable and pure power for precision equipment such as robot IRC5 controllers, effectively improving the reliability and stability of the system. It is widely used in industrial scenarios that require extremely high electromagnetic compatibility.

Specification parameters

rated voltage

220V/380V AC， Compatible with common single-phase and three-phase AC power supply voltages in industry, suitable for power supply needs in different industrial scenarios

Frequency range

50/60Hz， Match the power supply frequency of most regions around the world

Working temperature range

-20 ℃ -+60 ℃, suitable for harsh industrial environments such as high and low temperatures, ensuring stable operation of equipment

Protection grade

IP20， Dustproof and prevent objects with a diameter greater than 12mm from entering, providing basic protection for internal circuits

Certification standards

Through international certifications such as CE, UL, FCC, etc., it meets the safety and electromagnetic compatibility standards of mainstream markets worldwide

Core functions

Electromagnetic interference suppression: By designing efficient filtering circuits, common mode and differential mode electromagnetic interference in the power grid can be effectively suppressed. It can filter out high-frequency noise, surge voltage and other interference signals on the power line, prevent interference signals from affecting the equipment, and also prevent the interference signals generated by the equipment itself from feedback to the power grid, ensuring the electromagnetic compatibility of the entire industrial system.

Power purification: Optimize power quality, stabilize voltage output, reduce voltage fluctuations and distortions. Provide pure and stable power supply for connected devices, reduce the risk of equipment failure caused by power issues, extend the service life of equipment, and ensure the normal operation and performance of equipment.

Signal protection: In industrial automation systems, it prevents electromagnetic interference from interfering with control signals and data signals, ensuring the accuracy and integrity of signal transmission. For example, in robot control systems, ensuring the accuracy of robot receiving and executing control instructions, and avoiding action deviations or errors caused by signal interference.

Working principle

The 3HAC7344-1 main line filter unit is mainly composed of electronic components such as inductors and capacitors to form the filtering circuit. When a current containing electromagnetic interference passes through a filter, the filtering circuit processes it based on the difference in frequency between the electromagnetic interference signal and the normal power signal. For high-frequency electromagnetic interference signals, inductors exhibit high impedance characteristics, hindering their passage; Capacitors provide a low impedance path for high-frequency interference signals, allowing them to bypass to ground and filter out the interference signals. For normal frequency power signals (such as 50/60Hz), inductors and capacitors exhibit lower impedance, allowing the power signal to pass smoothly and ultimately outputting a pure and stable power supply, achieving suppression of electromagnetic interference and purification of the power supply.

Key advantages

Efficient filtering performance: With excellent insertion loss performance over a wide frequency range, it can effectively suppress various types of electromagnetic interference and ensure stable operation of equipment in complex electromagnetic environments. Compared to similar products, it can reduce electromagnetic interference by [X]% and significantly improve system stability.

High reliability: Equipped with high-quality electronic components and sturdy casing design, it undergoes rigorous aging testing, high and low temperature testing, vibration testing, etc. to ensure long-term stable operation in harsh industrial environments. The mean time between failures (MTBF) exceeds [X] hours, reducing the frequency of equipment maintenance and replacement.

Easy to install and adapt: Standardized interface design, supports multiple installation methods (such as panel installation, rail installation), and can be easily integrated into existing industrial control systems. At the same time, it has good compatibility and can seamlessly cooperate with ABB and other brands of equipment and controllers, reducing the difficulty of system integration.

Energy saving and environmental protection: Low power design, while effectively suppressing electromagnetic interference, has low energy consumption, conforms to the concept of green industrial development, and reduces the operating costs of enterprises.

Safety compliance: Strictly following international safety and electromagnetic compatibility standards, controlling the entire process from design to production, ensuring product safety and compliance, and eliminating safety hazards and compliance risks for enterprises.

Precautions

Installation environment: It should be installed in a dry and well ventilated environment, avoiding installation near high temperatures, humidity, corrosive gases, or strong electromagnetic interference sources. The installation location should be far away from large motors, transformers, and other equipment to prevent external electromagnetic interference from affecting the performance of the filter.

Installation specifications: During installation, it is necessary to strictly follow the product manual for wiring to ensure correct connection of power input and output, and avoid reverse connection or short circuit. Lines with different phases should be routed separately to prevent mutual interference; The grounding wire should be reliably grounded, and the grounding resistance should meet the requirements to ensure the normal operation and safety performance of the filter.

Usage and maintenance: During use, avoid overloading the filter and ensure that the actual working current does not exceed the rated current. Regularly check the appearance of the filter, whether the wiring terminals are loose, and whether there is overheating. If any abnormalities are found, power should be cut off for inspection in a timely manner, and professional personnel should be contacted for repair or replacement.

Parameter matching: When selecting and using this filter unit, it is necessary to choose a filter of appropriate specifications based on the power, voltage, current, and electromagnetic interference characteristics of the equipment to ensure that the filter matches the equipment and achieves the best filtering effect.

Similar model supplement

ABB 3HAC7345-1 Main Line Filter Unit: Compared to 3HAC7344-1, 3HAC7345-1 has a higher rated current and is suitable for higher power industrial equipment or systems. In some automated production lines of large factories, if the total power of the equipment is large, the current carrying capacity of the power filter is required to be higher. 3HAC7345-1 can better meet the demand, and the filtering performance has also been optimized for the interference characteristics of high-power equipment.

ABB 3HAC7343-1 Mainline Filter Unit: This model of filter unit has a more compact size and is suitable for installation environments with limited space, such as small control cabinets or equipment with narrow internal space. Although the size has decreased, the filtering performance in key frequency bands can still meet the requirements of general industrial equipment, providing electromagnetic interference suppression solutions for small industrial automation systems.