2026-30-ALF

Series:	TRIGARD® 2026
Packaging:	Bulk
Lead Free Status / RoHS Status:	--
Part Status:	Active
Moisture Sensitivity Level (MSL):	--
Voltage - DC Spark Over (Nom):	300V
Impulse Discharge Current (8/20µs):	20000A (20kA)
Tolerance:	±20%
Number of Poles:	3
Fail Short:	No
Mounting Type:	User Defined
Package / Case:	Cylinder No Lead, 3 Terminal

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Gas Discharge Tube Arresters (GDT)

The world of modern electrical thought is riddled with hazards. One of these traps comes in the form of voltage surges. This problem affects users of both public electricity grids and domestic applications. The Gas Discharge Tube Arresters (GDT) offers a solution by protecting electrical systems from damage due to voltage spikes. Designed as an alternative to smaller Transient Voltage Surge Suppressors (TVS), the GDT offers a robust protection against voltage surges and electrical faults in medium to large electrical grid applications.

2026-30 ALF Application Field and Working Principle

More recently, the 2026-30 ALF GDT offers extended protection against high voltage lightning strikes and power outages. This expansion makes the GDT a more viable option for protecting against the larger surges and fluctuations found in more powerful power grids and those found in industrial applications.The 2026-30 ALF GDT is typically formed in a “tip-off” configuration, which is composed of two primary components; the Gas Discharge Tube (GDT) and the Arrestor. The function of the GDT is to control the voltage spike introduced to the system, while the Arrestor is designed to protect the system by reducing the peak current of the surge which in turn reduces the heat generated and the amount of subsequent damage.The GDT works by forming a low voltage, non-conductive gas barrier around the conductor. When exposed to significant voltage surges, the gas inside the tube ionizes. This ionization free electrons, which are drawn to the conductor, creating apath of current flow.This path breaks the original current spike,restricting the surge to safe data transmission levels, and reducing the risk of irreversible damage. The Arrestor,on the other hand, is designed to restrict further and spike or surge. Designed in the form of a spring, the Arrestor works by containing the current and blocking the flow of further electrons once it is exposed to the surge, restricting the spike to 1/2 and 1/3 of its original value.Additionally,this devicelimitsthe energy flow,which slows down the heat generated, reducing the risk of further damage.These two components together allows the 2026-30 ALF GDT to offer protections from surges of either polarity and is also optimized to work within the range of a given system, making it possible to install and deploy in a wide variety of applications.

Conclusion

Gas Discharge Tube Arresters (GDT) offer a viable solution for protecting electrical systems from surges or lightning strikes. The 2026-30 ALF GDT is a specific model of GDT, which has been designed with added features to allow it to more effectively protect against larger and more powerful surges. It consists of two components, the Gas Discharge tube, which is used to control the voltage spike, and the Arrestor, which protects the system by restricting the peak current. Together, they offer unparalleled protection against unexpected voltage surges and have been designed to work within the range of given systems.

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