NAH-20-221-D

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The NAH-20-221-D power line filter module is an electronic device used to reduce electromagnetic interference (EMI) in systems. This power filter module primarily works by suppressing common mode and differential mode noise on power lines. The device is designed to be used in low voltage industrial applications and features a dual-stage filter design to meet stringent requirements. The NAH-20-221-D is capable of withstanding thermal and mechanical shock, vibration, and has a reliable and consistent functioning even in harsh operating environments.

The device structure consists of two-stage parasitical-type line filter and is comprised of two inductors, two capacitors, two varistors, and two common-mode chokes between the AC and DC power lines. The inductors act as low-frequency suppression to reduce common-mode noise and the capacitors act as high-frequency suppression to reduce differential-mode noise. The two varistors used in the front stage of the filter further suppress transient overvoltages. Finally, the two common-mode chokes help attenuate any radiofrequency noises and prevent the quality of the power source from being compromised.

The NAH-20-221-D also features an overcurrent protection that prevents circuits from overheating and being damaged due to overvoltage conditions. The EMI filter module also helps protect against lightning, electromagnetic pulse (EMP) surges, and other phenomena which may allow energy to enter the system, thus limiting the amount of energy that can be transmitted to the system. The power filter module is certified according to UL, CSA, and EN safety standards and is compliant with CE standards.

The NAH-20-221-D power line filter module is designed to provide the highest signal integrity with the highest response time in industrial applications. It is ideal for applications that require protection from EMI such as switchgear, DC/DC converters, motor drives, lighting systems, and power supplies. The two-stage filter design helps reduce noise and increase the system\'s ability to interact with other systems, as well as with EMC emission sources. Additionally, the varistor-based protection further prevents the risk of system damage and ensures maximum protection against transients.

The NAH-20-221-D power line filter module offers reliable performance in harsh environments and is suitable for high-frequency applications in a wide variety of industries such as automotive, aerospace, military, and telecommunications. The device is easy to install with a simple set-up and is highly cost-effective compared to other filter solutions. The NAH-20-221-D is an ideal solution for applications that require reliable EMI protection in industrial, automotive, and other applications.

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