SL1002A250C

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Gas Discharge Tube Arresters (GDT) is electrical equipment designed to protect circuits, conductors, and equipment from electrical stress caused by transient over voltages caused by lightning or from switching surges. Gas Discharge Tube Arresters (GDT) is widely used in electric power systems, communications, and electronic instrument systems for insulation and overvoltage protection.

SL1002A250C is one of GDT, a modular gas discharge tube arrester suitable for protection of electrical appliances and communication devices for AC low-voltage power line systems. It is composed of two parts, a metal-oxide varistor (MOV) and a gas discharge tube (GDT). It incorporates an arc discharge function based on the advantages of metal oxide varistors and GDTs, with excellent protection performance and low residual voltage.

SL1002A250C belongs to a series of single-module gas discharge tube arresters, with a rated voltage of 250V. The pre-discharge arc becomes an electric discharge after exceeding the rated discharge voltage of 3.7KV. And with a fast response speed and high surge protection capability, the SP series can respond to transients in the low frequency range of 1~10MHz, with a short action time of 1 nanosecond, strong impulse withstand capability and a surge current of up to 20KA.

The structure of the SL1002A250C arrester is mainly composed of hemicoherent disk-shaped GDT core, anti-burning-out arcing horn, pressure-type fire-resistant casing and terminals. The GDT core is located in the center of the arrester, from which the discharge path is gradually extended. During normal operation, the MOV part is able to flush the overvoltage. And discharge path will start working when power switching is higher than the rated voltage. The arcing horn and accessories guarantee the continuity of the discharge after the MOV component fails. Meanwhile, its pressure-type fire-resistant casing and terminals advantage of low power consumption, wide temperature working range, silent operation and corrosion resistance.

The SL1002A250C arrester is widely used in various types of communication industry devices, such as emergency notification systems, low-voltage wired broadband systems, base-stations. Moreover, much equipment for outdoor use are required to withstand moisture, wind, and extreme temperatures, making the SL1002A250C series an ideal choice given their superior IP67 protection grade rating.

In summary, the SL1002A250C Series GDT Arrester provides protection for electrical and communication systems against over-voltage and lightning strikes, offering superior performance, low residual voltage, fast response speed, high surge protection capability, long life-expectancy, and environmental protection.

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