2027-42-SM-RP

Gas Discharge Tube Arresters (GDT)

The surge arresters with gas discharge tube (GDT) are known for their simple yet efficient working principle, which makes them suitable for use in diverse application fields, including telecommunications, electrical engineering and power distribution. Specifically, 2027-42-SM-RP GDTs are designed to provide peak current protection and voltage protection of any device from voltage surges and alternating current.

Overview

The 2027-42-SM-RP GDTs feature a ceramic body with an internal metal-oxide varistor (MOV) layer and two or three gas-filled electrodes. When connected, the MOV will conduct an equal but opposite current to the current entering the electrode, thus removing any potential voltage spikes from the device. The GDT also provides transient voltage suppression, which further dissipates any excess surge energy.

Design

The 2027-42-SM-RP GDTs consist of three main components: an anode, a cathode and a regulating resistor. The anode is a round metal cone that’s connected to a metal contact at the base. When the current meets up with the anode, electrons are released that then travel through the resistor and the cathode, producing a spark. The spark produced by the GDT will create a momentary voltage drop, which dissipates the excess surge energy.

Operation

When a surge of current or voltage is detected, the 2027-42-SM-RP GDT will activate and dissipate the energy through a spark that’s created by the anode and cathode connections. The MOV layer in the body will also absorb any excess energy that may not be dissipated by the spark. The spark will last for only a short moment, allowing the energy to be dissipated without damaging the device.

Advantages

The 2027-42-SM-RP GDTs offer a number of advantages, such as simple and reliable operation, compact size, low cost and high speed of operation. Additionally, they are able to dissipate higher levels of surge energy than other types of surge protectors, making them an ideal solution for any application requiring efficient surge protection.

Conclusion

The 2027-42-SM-RP GDTs are an effective solution for surge protection in a variety of applications. They offer reliable, cost-effective operation and can efficiently dissipate surge energy, making them a great choice for any device or system that is vulnerable to voltage spikes.