2026-30-C18

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Gas discharge tube arresters (GDT) are devices used to protect circuits from damage due to overvoltages and overcurrents. They consist of an arrester body which contains an insulating material, a spark gap, a gas discharge tube, and a lead assembly. The gas discharge tube is filled with a combustible gas, typically argon or xenon, and the spark gap creates a low voltage arc. The arc ionises the gas, allowing current to flow between the electrodes of the GDT, and provides protection against overvoltage or overcurrent.

The 2026-30-C18 GDT model is a gas discharge tube arrester with on-board chip components. The design includes a gas discharge tube, an avalanche protection diode and an active switch (AZ device). It is designed to protect AC and DC power circuits from overvoltage and overcurrent. The basic principle of operation of this arrester is that current flow is allowed through the device when the voltage exceeds the rated voltage, thus protecting the power circuits from any damage due to overvoltage or overcurrent.

This arrester is designed to operate in the 20-30V range with an operating current of up to 35A. It can handle overvoltage of up to 1000x the nominal voltage, and can be used for both AC and DC circuits. The gas discharge tube is calibrated with a greatly steep characteristic to ensure protection from overvoltages up to 1000 times the nominal voltage. The avalanche protection diode ensures that current leakages and transients are contained by limiting the voltage on the GDT.

The active switch (AZ device) featured in the 2026-30-C18 GDT is used to control the flow of current and to switch between the two states: on or off. The AZ device is designed to act as a switch and is capable of operating up to 1000V. The AZ device can be triggered in two ways, either magnetically or by an externally applied voltage. The magnetically triggered switch is used to switch the GDT between on and off modes, where the externally applied voltage is used to shut down the GDT when the voltage set point is exceeded.

The 2026-30-C18 GDT has a wide range of applications in both AC and DC power circuits, such as telecom, railway and power systems, and is used to protect the power system from overvoltage and overcurrent. It is designed to offer protection from a wide range of voltages and currents, and is able to withstand both transient and steady overvoltages up to 1000 times the nominal voltage.

In summary, the 2026-30-C18 GDT is a gas discharge tube arrester with on-board chip components. The design includes a gas discharge tube, an avalanche protection diode and an active switch. This model is designed to protect AC and DC power circuits from overvoltage and overcurrent, and is capable of withstanding both transient and steady overvoltages up to 1000 times the nominal voltage. The active switch can be triggered by a magnet or an external voltage, and can be used to switch the GDT between on and off modes. The 2026-30-C18 GDT can be used in a wide range of applications such as telecom, railway and power systems.

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