PMT823014

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Gas Discharge Tube Arresters (GDT) are an important class of surge suppressors used to protect electrical, optical, and electronic equipment against high-voltage transients. The PMT823014 is a type of GDT designed for use in industrial, commercial, and residential settings. The device is used to protect electrical systems from over-voltage surge events and transients.

The PMT823014 is a three-terminal, single-stage, non-linear over-voltage protection device that combines the benefits of both a zinc oxide arrester and a conventional surge arrester. It uses a three-layer metal oxide varistor (MOV) and a gas-filled spark tube of molten zinc oxide connected in parallel. The device is designed to activate its spark gap element under overload conditions and shunt the excess energy away from the sensitive circuitry. When the surge voltage exceeds the protection voltage of the device, it triggers a spark gap to conduct the pulse. This device also features a pressure sensitive relay that disconnects power from the load if the surge voltage goes above a certain amount.

The working principle of the PMT823014 is simple. The MOV is connected in series with the spark gap and provides over-voltage protection. When an over-voltage occurs, it acts like a diode to limit the current, which increases the voltage across the spark gap and triggers it. The spark then discharges the energy to the ground and the MOV is reset to its initial state. When the surge voltage is below the threshold voltage of the MOV, no spark gap discharge occurs and the MOV remains unactivated.

The PMT823014 is capable of providing line-to-ground and line-to-line protection for industrial, commercial, and residential applications. It also has several features that make it suitable for these applications. It operates in a wide temperature range from -40 to +85°C, has a long operational life of up to 10 years, and can withstand a high number of surge events. Furthermore, it is highly reliable and offers surge protection of up to 8kV.

In summary, the PMT823014 is a type of gas-filled spark tube of molten zinc oxide GDT that is designed for use in industrial, commercial, and residential settings. It is a three-terminal, single-stage, non-linear over-voltage protection device that combines the benefits of both a zinc oxide arrester and a conventional surge arrester. The device is capable of providing line-to-ground and line-to-line protection in a wide temperature range, has a long operational life, and is highly reliable. As such, this GDT is an excellent device for surge protection of electrical, optical, and electronic equipment.

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