ROV07-680K-S-2

The ROV07-680K-S-2 is a specific type of varistor, classified in the MOVs (Metal Oxide Varistors) products family. Varistors are electronic components used to protect electronic circuits from the overvoltage that might damage them. Without protection, circuits can be destroyed in the event of a power surge. This is why such components like the ROV07-680K-S-2 are becoming increasingly important in the manufacturing of various types of electrical equipment and appliances.

Inside the MOVs is a kind of ”sandwich” made by two metal plates, separated by a ceramic sheet in which dispersed particles of zinc oxide act as the primary component for electrical protection. The other components, like sulfur hexafluoride, help stabilizing the voltage and insulating the MOV from external disturbances. The properties of the zinc oxide particles make them able to contain high levels of energy within the dielectric, allowing the circuitry to be protected against overvoltage events.

The ROV07-680K-S-2 is a high-power varistor that can be used in a wide range of applications, among which we can find industrial electronic devices, transformers or high-power rectifier circuits, computer and telecommunication equipment, and many more products which require a voltage surge protection system. Because of its high power rating (680KV) and because it is an encapsulated, free-standing device, the ROV07-680K-S-2 is especially suitable for outdoor applications.

Generally speaking, the working principle behind the MOVis relatively simple and can be summarized in few words. When an overvoltage is encountered, the zinc oxide particles become conductive and create a low-resistance path, diverting the surge current away from the protected electronics. As soon as the surge drops below the MOV’s threshold break-down voltage (10.2V for the ROV07-680K-S-2), the zinc oxide particles become non-conductive again and the MOV recovers its original electrical characteristics.

The ROV07-680K-S-2 is just one example of a varistor device, but it can be surely regarded as a successful element for protecting electronic circuits from power surges in a wide range of applications. Its high power ratings and its ability to handle deluges of current are the most important features that make it so efficient and reliable in the field of surge protection.