B88069X8690B502

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Gas Discharge Tube Arresters (GDT) is an important type of over-voltage protection, primarily used in telecommunications and power networks. The device is designed to withstand over-voltage and short-time spiking transients that can occur in the environment and protect sensitive loads from damage or interruption. GDTs, such as B88069X8690B502, are typically used on the primary side of the network / power supply, where they can absorb the majority of incoming surges.

GDT Construction

The B88069X8690B502 is a compact, surface mountable GDT designed for protected against static breakdown and surges up to a voltage of 10 kV. It contains a single gas-filled tube which consists of two electrodes, surrounded by an insulating plastic molding. A current limiting element is used to regulate the current flow in the tube, preventing it from becoming too great. The GDTs standard capacity rating is 350 Vrms / 400 A.

GDT Application Fields

The B88069X8690B502 GDT is designed for use in power electronic devices, such as power converters, UPS systems, frequency converters, variable-speed drives, and power supplies. These types of applications require robust protection from voltage transients, as the high switching frequency of the power electronics can cause extensive damage when lightning-induced overvoltages are present. GDTs can also be used as lightning protection devices in telecommunications networks, such as telephone lines and data networks. They protect the data from interference or disruption that may be caused by power surges.

GDT Working Principle

The working principle of the B88069X8690B502 GDT is based on a gas-filled tube (GFT). When a voltage is applied to the GFT, a gas discharge is created between the two electrodes which prevents the further rise of the voltage. This limits the energy transferred through the GFT, which greatly reduces the stress on a system when a surge or surge occurs.The GFT works by using an overvoltage protection element, known as a gas gap. This is formed by two electrodes in the GFT, which are surrounded by a specific gas mixture. The breakdown voltage of the GFT is usually below 3KV, allowing it to absorb high voltages without detrimental effects. When the voltage drops below the breakdown voltage of the gas gap, it switches off, limiting further current flow.The GFT also includes a current limiting element. This limits the current that can pass through the GFT, preventing any damage that could be caused by current surges.

Conclusion

In conclusion, the B88069X8690B502 GDT is a highly efficient and reliable overvoltage protection device. It is designed for use in both power networks and telecommunications applications, and its working principle ensures that the majority of transients are absorbed and do not cause any disruption or damage. The B88069X8690B502 is easy to install and provides a cost-effective solution for preventing failures due to overvoltage conditions.

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