V05P17AUTO

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V05P17AUTO is a three-phase AC line-to-ground overvoltage protection device. It is widely used in residential buildings, mines, marketplaces, entertainment venues, high-tech parks, enterprise plants, factories, schools, banks, hospitals, hotel complexes, supermarkets and other places that require surge protection.

A V05P17AUTO is a combination of an MOV and a Varistor. The MOV (metal oxide varistor) provides the first line of defense against transient voltage spikes, and the Varistor provides additional protection against again any possible transient voltage spikes. Together the MOV and the Varistor provide superior three-phase line-to-ground overvoltage protection.

When the excitation voltage of the V05P17AUTO surges over its rated operating voltage (U1 + 11.5%), the MOV can effectively reduce the voltage, and prevent the overvoltage from entering the protected facility. Immediately after the surge, the Varistor is triggered to clamp the overvoltage, then the residual voltage value after the surge decreases rapidly.

The Varistor within the V05P17AUTO is a high energy absorbing device that is designed to provide short-term overload protection for three-phase AC lines. It works by quickly limiting the rising transient voltage on either the Line-to-Neutral or Line-to-Ground AC lines, clamping it to a safe level. This may occur during lightening strikes, switching operations, or any other electrical disturbances.

The V05P17AUTO is capable of responding quickly to overvoltages with high current capability. It can continuously operate safely with low residual voltage. The Varistor also has a fast response time, with a short circuit current decreasing to 0.2 times its initial peak value within 10us, offering superior protection from any external transient voltage.

At the same time, the V05P17AUTO does not utilize any moving parts, making it an excellent choice for conditions where vibration or jolts may be present. The casing of the device is designed to improve heat dissipation so that the MOV and Varistor won’t overheat in the event of multiple or long-lasting overvoltage events.

In conclusion, it’s clear that the V05P17AUTO provides a great combination of both MOV and Varistor protection in a single package. The device offers an outstanding level of protection, superior response time and excellent heat dissipation without need of any moving parts.

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