ABB 3HAC7344-1 Mains line filter unit

ABB 3HAC7344-1 Mains line filter unit is a high-performance electromagnetic interference (EMI) suppression device developed specifically for industrial automation scenarios. The following is a detailed introduction:

Functional features

Electromagnetic interference suppression: Through the design of efficient filtering circuits, it can effectively suppress common-mode and differential-mode electromagnetic interference in the power grid, filter out interference signals such as high-frequency noise and surge voltage on the power line, prevent interference signals from affecting the equipment, and avoid the interference signals generated by the equipment itself from being fed back 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 distortion, provide pure and stable power for connected devices, reduce the risk of equipment failure due to power problems, extend equipment life, and ensure the normal operation and performance of equipment.

Signal protection: In industrial automation systems, it can prevent electromagnetic interference from interfering with control signals and data signals, and ensure the accuracy and integrity of signal transmission. For example, in a robot control system, it can ensure the accuracy of the robot's reception and execution of control instructions, and avoid action deviations or errors caused by signal interference.

Technical parameters

Power supply voltage: supports 220V/380V AC, compatible with common single-phase and three-phase AC power supply voltages in industry, suitable for power supply needs of different industrial scenarios.

Working temperature: -20℃ to + 60℃, suitable for harsh industrial environments such as high and low temperatures, ensuring stable operation of the equipment.

Protection level: IP20, dustproof, prevent objects with a diameter greater than 12mm from entering, and provide basic protection for internal circuits.

Electromagnetic compatibility: Passed international certifications such as CE, UL, FCC, and complies with the safety and electromagnetic compatibility standards of the global mainstream market.

Structure and principle

The filter unit is mainly composed of electronic components such as inductors and capacitors to form a filter circuit. When a current containing electromagnetic interference passes through the filter, the filter circuit processes it according to the frequency difference between the electromagnetic interference signal and the normal power supply signal. For high-frequency electromagnetic interference signals, the inductor presents a high impedance characteristic, which hinders its passage; the capacitor provides a low impedance path for the high-frequency interference signal, bypassing it to the ground, thereby filtering out the interference signal. For power signals of normal frequency (such as 50/60Hz), the inductor and capacitor present low impedance, allowing the power signal to pass smoothly, and finally output pure and stable power, realizing electromagnetic interference suppression and power purification functions.

Product advantages

High-efficiency filtering performance: It has excellent insertion loss performance in a wide frequency range, can effectively suppress various types of electromagnetic interference, and ensure stable operation of the equipment in complex electromagnetic environments. Compared with similar products, it can reduce electromagnetic interference by (X)%, significantly improving system stability.

High reliability: Equipped with high-quality electronic components and sturdy shell design, it has undergone rigorous aging tests, high and low temperature tests, vibration tests, 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 work seamlessly with ABB and other brands of equipment and controllers, reducing the difficulty of system integration.

Application scenarios

Widely used in industrial scenarios with extremely high requirements for electromagnetic compatibility, such as robot control systems, automated production lines, industrial control rooms, etc., to provide stable and pure power supply for precision equipment such as robot IRC5 controllers, ensuring the normal operation of the equipment and the accuracy of signal transmission.