PMT3(310)25014

Series:	PMT3(310)
Packaging:	Tray
Lead Free Status / RoHS Status:	--
Part Status:	Obsolete
Moisture Sensitivity Level (MSL):	--
Voltage - DC Spark Over (Nom):	250V
Impulse Discharge Current (8/20µs):	20000A (20kA)
Tolerance:	--
Number of Poles:	3
Fail Short:	No
Mounting Type:	Through Hole
Package / Case:	Axial Cylinder, 3 Lead (T-Shape)

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PMT3(310)25014 Gas Discharge Tube Arresters (GDT) are surge-protective devices used in electrical circuits to protect sensitive equipment from lightning-induced transient surges.GDTs are designed to protect electrical circuits from overvoltage transients of very low frequencies, typically caused by lightning strikes. The working principles of GDTs are based on a short gap between two electrodes or an optimal voltage gap, and when a voltage surge is present, a conducting bridge appears between them. This bridge is an ionized path that diverts the surge current into an electrode or the earth.A GDT consists of one or more electrodes, a dielectric material, and a spark gap that separates the electrodes and the dielectric. The dielectric material can be glass, ceramic, porcelain, or any other material that offers high insulation resistance and prevents the accumulation of charge. The distance between the electrodes is usually large enough to prevent any sparking, even at high voltage levels.When a voltage surge occurs due to a lightning strike, the resulting increase in current causes an electric arc between the electrodes and the dielectric. The resulting arc causes the charge to be dissipated in the form of heat. The heat released during this process is absorbed by the dielectric material, which prevents any damage to the equipment being protected.GDTs find a variety of applications in industrial, commercial, and residential settings. In industrial and commercial settings, GDTs are typically used to protect sensitive electronic equipment, such as computers, telecommunications systems, and sensitive electrical components. They are also used to protect power line and equipment from potentially damaging power surges, and to protect electric motors from arc-tracking. In residential settings, GDTs are used to protect electrical appliances, such as refrigerators, air conditioners, and laundry machines, from transient surges. GDTs also find use in overvoltage protection applications such as surge protectors, line filters, line chokes, and lightning protectors.GDTs are a reliable and effective means of surge protection. They are easy to install and require minimal maintenance, making them an attractive option for those who need surge protection for their electrical systems. Additionally, GDTs are cost-effective as compared to other surge protection devices, such as varistors and fuses. By deploying GDTs as part of an overall surge protection strategy, one can ensure that their expensive electronics and appliances remain safe from lightning-induced transient surges.

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