SE470

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Gas discharge tube arresters (GDT) are lighting arresters used to protect outdoor electrical equipment from the harmful effects of lightning surges. SE470 GDT arresters are designed to offer superior performance – providing excellent surge protection with an extended lifetime. By limiting the effect of lightning strikes to a low-level current and diverting the dangerous energy into the ground, it is possible to protect sensitive equipment from total failure.

SE470 GDT arresters have a Lightning Transfer Impedance (LTI) of less than 0.1Ω. This offers improved clamping performance and ensures that the energy of a lightning strike is diverted to the ground, without disrupting existing networks or equipment. SE470 GDTs are able to handle surges up to 50kA, which is far more than other types of lighting arresters. This makes them ideal for lightning-prone regions and gives users piece-of-mind knowing their equipment is properly protected against damaging lightning surges.

The working principle of the SE470 GDT arrester is relatively simple. Under normal operating conditions, the small air gap in the arrester acts like an insulation barrier, preventing electric current from flowing into the ground or any other connected equipment. When a lightning strike occurs, the air gap breaks down to conduct, this diverting the energy away from the equipment. The circuitry of the GDT (including the zinc oxide varistor and the spark gap) has been designed so that once the energy is dissipated, the arrester automatically cuts off the flow of electricity and restores the original insulation barrier.

SE470 GDT arresters have become increasingly popular in recent years, due to their improved performance and improved safety features. The long service-life and ease with which they can be installed make them an excellent choice for any outdoors electronics. They are a reliable, low-cost solution and offer the perfect protection against severe weather conditions. Plus, their ability to handle higher levels of surge makes them ideal for lightning-prone regions.

In conclusion, SE470 GDT arresters offer superior performance and reliability. The low LTI ensures that the energy of a lightning strike is appropriately diverted to the ground, protecting delicate electronic equipment from total failure. The wide range of performances they provide combined with their easy installation make them an excellent solution for any outdoor electronics, especially those in lightning-prone regions.

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