2089-360-BT1LF

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Gas Discharge Tube Arresters (GDT)

Gas Discharge Tube Arresters (GDT) are protective devices designed to protect sensitive electronic equipment from transient overvoltage events, such as spikes and surges in companion with lightning strikes and power-line switching. The 2089-360-BT1LF is a type of GDT arrester that works to prevent electrical surges and spikes from damaging sensitive electrical devices. This article will discuss the application field and working principle of the 2089-360-BT1LF arrester in detail.

Application Field

The 2089 BT1LF is designed for use in low-voltage applications, such as on 120/277V AC lines powered by one phase. The device’s power rating is 3.5kV, and its response time is less than 1 μs. It has a maximum DC continuous voltage of 360V, a holding voltage of 226V, and breakdown voltage of 572V AC. The device also has an Impulse Withstand Voltage of 8kV, a Short Circuit Withstand Voltage of 11kV, and a Rated Operating Voltage of 240V. It can handle up to 120 mA of current and is capable of withstanding up to 48A of short-duration current.

The 2089 BT1LF is suitable for use in enclosed electrical circuits both indoors and outdoors and in low-voltage residential, commercial, and industrial applications such as AC power lines, telecommunications systems, and Internet coaxial lines. The device has a wide temperature operating range of -40°C to +85°C and is designed to be used in both high and low humidity environments. It has a mechanical mounting method and is able to withstand shock and vibration.

Working Principle

The 2089-360-BT1LF GDT arrester operates in a runaway mode where it fires a pair of conducting electrodes. During a lightning strike, the surge in voltage causes the device to ignite the gap between the two electrodes to discharge a current through the device. The air gap between the electrodes reduces the voltage to a level which is safe for the connected equipment. The device is self-extinguishing in that once the surge is absorbed, the air gap is extinguished and the device reverts back to its normal, non-conducting state.

The 2089 BT1LF arrester operates through a process called “filled break”, where a gas-filled tube is used to create the air gap. When triggered, the gas inside the tube ionizes and creates a conducting path between the two electrodes. This enables the current to pass through the gap, discharging the surge. Once the surge has been dissipated, the ionized gas is extinguished, cutting off the current and returning the device to its non-conducting state. This process allows the arrester to protect the connected equipment effectively from transient events.

The 2089-360-BT1LF GDT arrester is designed for use with circuits up to 240V and can provide protection against surges and spikes. It is a reliable, efficient device that can be used in a variety of applications to protect sensitive electronic equipment from harm.

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