A metal oxide surge arrestor provides the utmost surge protection for distribution systems of ADC nature. These are common in transit and industrial applications as well as in mining. These arrestors can be mounted on substations, DC theaters, and rectifiers. These are units that can be mounted as close as possible to the device for the utmost in protection. With the option to even mount these to a vehicle, they’re extremely versatile for preventing surge where ever required.
The optimal location for the device is as close as possible to the area where surge may occur. The selection of arrestors needs to be done based on the maximum current operating voltage. When the system is fully grounded this connection should be less than five OHMS.
Surge arrestors that are produced with metal oxide technology are some of the best in the intermediate class of arrestors for the market. These tools are designed to operate at temperatures not exceeding 60°C and the housing is even designed with enhanced UV stabilization and impact resistance. These arrestors can take a beating and experience ongoing wear and tear from being attached to passenger trains. The main materials in these devices is usually a UV stabilized polyester glass with an element inside. The encapsulated area of the element comes with a dielectric sleeve which can add an extra level of surge protection. The stainless steel cap is then added to finish off the device and to make sure that it can aesthetically blend with any type of train or mining technology.
The connecting studs and mounting hardware are placed on the side of the device and manufactured from a corrosion resistant stainless steel. With the entire device encapsulated in stainless steel, this product can stand up to all types of weather, heat and wear.
The energy discharge capacity of a metal oxide surge arrestor stands around 2.6 kJ with a current above 500 A. These devices remain an essential part when working with heavy equipment. If you need more information or if you are looking for the best type of surge arrestor for the needs of your business, contact us today to learn more about the requirements for your business. We can match the appropriate surge arrest or to your electrical needs.