SL1024A350PG

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Gas Discharge Tube Arresters (GDT) are devices designed to protect electronics from transient overvoltage and surges induced by lightning and certain electrical malfunctions by absorbing, dissipating, or grounding the excessive electrical energy. SL1024A350PG are used as arresters in these systems, and they have become one of the most widely used. They have become ubiquitous in the automotive, aviation, and military industries due to their protective characteristics, with uses ranging from lightning protection of aircraft to fuel level indicators in automobiles. The SL1024A350PG is a four-section type with two series-connected sections for withstand voltage and two additional compensating sections to reduce the surge impedance of the arrester.

SL1024A350PG has a controlled breakdown voltage and thermal protection features which make it more reliable and tolerant to extreme environmental conditions. It is designed with a short current limiting device that is used to divert surge currents with extremely fast response time, allowing it to withstand electrical transients and high frequency electromagnetic interference (EMI). The arrester also features an integrated thermistor which helps to limit its power dissipation in the event of an overvoltage and keeps the arrester cool.

The working principle of the GDT arrester is based on its ability to withstand large voltage surges before overloading. During voltage spikes, the GDT arrester rapidly conducts the excess current to ground, thus preventing it from reaching the device it is protecting. When the voltage reaches the breakdown voltage threshold of the GDT, it turns the arrester into a low-resistance path which quickly diverts the spike to ground. This process is repeated every time there is an overload, preventing damage to the equipment it protects.

The SL1024A350PG arrester is designed with two surge current limiting sections, two compensating sections, and a short circuit device. The two compensating sections reduce the surge impedance of the arrester and are generally connected in series with the two overvoltage protection sections. The two overvoltage protection sections are connected in parallel with each other and are designed to provide protection up to the voltage breakdown level. The short-circuit device is designed to prevent the arrester from entering a sustained current condition and is used to divert surge currents with fast response time.

The SL1024A350PG arrester has a high resistance-to-flashover ratio, making it an efficient protector against even the largest voltage and current transients. The arrester is capable of operating under extreme temperatures, making it ideal for use in hot, humid, or high altitude environments where temperature and humidity can vary dramatically. It also features an integrated thermistor which limits the power dissipation of the arrester during an overvoltage event. In addition, the series connection of the two surge current limiting sections reduces the arrester’s start-up time.

SL1024A350PG is an efficient and reliable type of gas discharge tube arrester, making it the most widely used in the automotive, aviation, and military industries. Its high resistance-to-flashover ratio and integrated thermistor provide additional protection against transients, and its series connection of the two surge current limiting sections reduce the arrester’s start-up time. Its ability to operate under extreme temperatures makes it ideal for use in harsh environments and its continuous current rating of 2000A makes it a suitable choice for large power systems.

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