SE350 Circuit Protection

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Gas Discharge Tube Arresters (GDT) are protective devices that limit overvoltage transients that can be caused by lightning strikes, switching surges, and other electrical disturbances. They consist of a gas-filled tube, anode, and cathode. When the voltage increases above the breakdown voltage of the gas inside the tube, a spark will occur across the anode and cathode, dissipating the surge before it can damage the other components in the circuit.The SE350 is a Gas Discharge Tube Arrester manufactured by REXVAL that is designed for outdoor use. It features a rugged construction with zinc-plated steel outer casing, and comes in various sizes for different applications up to 277 volts AC. The SE350 has a fast response time which is essential for protecting sensitive equipment from fast-moving transients, and can handle surge currents up to 5,000 amps.The working principle of the SE350 is relatively simple. The device is composed of an anode, cathode, and a gas-filled chamber. When the voltage increases beyond the arc overvoltage of the device, a spark will occur across the anode and cathode, dissipating the surge energy before it can damage other components.The SE350 is suitable for a variety of applications ranging from small residential circuits to large industrial complexes. It can be used to protect AC motors, consumer electronics, light fixtures, and other AC driven components from overvoltage transients caused by lightning, switching surges, and other electrical disturbances.In addition to providing protection from overvoltage transients, the operation of the SE350 is greatly affected by the humidity of its environment. The gas inside the tube is affected by humidity, and if the humidity is too low, it may not be able to dissipate the surge energy before it reaches the other components. To ensure maximum protection, it is recommended to install the SE350 in locations with moderate humidity and natural ventilation.The SE350 is capable of providing reliable protection from overvoltage transients which can otherwise damage sensitive components. Its fast response time and low operation voltage make it suitable for a variety of applications, and its rugged construction ensures it will be able to withstand the harsh outdoor conditions.

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