Series:	TRIGARD® 2026
Packaging:	Bulk
Lead Free Status / RoHS Status:	--
Part Status:	Active
Moisture Sensitivity Level (MSL):	--
Voltage - DC Spark Over (Nom):	250V
Impulse Discharge Current (8/20µs):	20000A (20kA)
Tolerance:	±20%
Number of Poles:	3
Fail Short:	No
Mounting Type:	Through Hole
Package / Case:	Axial Cylinder, 3 Lead (T-Shape)

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Gas Discharge Tube Arresters (GDT)

Introduction

Gas discharge tube arresters (GDT), or GDTs, are devices designed to protect sensitive electrical components from electrical surges caused by lightning, power line disturbance, or other transient overvoltage events. GDTs have been used for decades to protect electronic equipment and installations in high voltage environments and while the application of GDTs has expanded to low and medium voltage environments, GDTs are still considered to be the most reliable protection technology for high-voltage systems.

2026-25-CLF Application Field and Working Principle

The 2026-25-CLF is a Gas Discharge Tube Arrester (GDT) specifically designed for use in low and medium voltage installations. The 2026-25-CLF has been designed to ensure maximum protection of power systems, communications systems, signaling networks, and other electrical equipment requiring reliable surge protection. The 2026-25-CLF is capable of meeting ANSI/IEEE requirements for surge protective devices, as well as providing superior levels of protection against possible sources of transient damage. The working principle of the 2026-25-CLF involves two or more electrodes separated by a dielectric material and connected to the corresponding terminals of the power system. The 2026-25-CLF is designed with the appropriate arc gap controlled in such a way that the current transfer from the ground side to the power line side of the GDT arrester occurs in a controlled manner. When an overvoltage event occurs, the GDT acts as a “gate” that breaks down for a certain period of time and allows the current to be transferred safely to the ground side without causing any damage to the power equipment.The 2026-25-CLF can be used in residential as well as industrial settings, however, it is important to take into account the specific requirements of the application and the equipment. The 2026-25-CLF can also be used with overhead transmission lines, underground cables, and other types of electrical power lines. When used in installations such as these, the arrester is generally located on the line side of transformers or other voltage equipment, and can be either directly attached to the equipment or connected using a standard or remote grounding system.When compared to other surge protection technology, GDTs offer several advantages. GDTs provide superior performance in terms of protection because the current transfer is controlled and can be adjusted in order to maximize the protection level. Additionally, GDTs are less likely to wear out from frequent overvoltage events, and due to their compact size and lower cost, they are also easier to install and more cost-effective to maintain.

Conclusion

The 2026-25-CLF Gas Discharge Tube Arrester (GDT) is an ideal solution for low and medium voltage installations. With its superior protection capabilities, fast response time, and cost-effectiveness, GDTs are becoming increasingly popular for protecting sensitive electrical components in a wide range of applications. The 2026-25-CLF is specifically designed for these applications, providing maximum protection and reliability.

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