Isolated earth switch

The invention relates to an isolated earth switch and belongs to the technical field of high-voltage power transmission. The isolated earth switch comprises a metal shell, an isolating switch, an earth switch I, an earth switch II and the like, wherein the isolating switch comprises a body embedding member, a disk-shaped insulator, a fixed-side conductor, an isolating switch fixed contact, a rack movable touch rod, a gear and a movable-side conductor; the two earth switches include disc-shaped insulator body embedding members, movable-side conductors, earth switch fixed contacts, earth switch movable contacts, earth switch movable contact shielding cases, earthing terminals, earthing shells and insulating basins. The isolated earth switch has the characteristics of simple and compact structure, high reliability and the like, is capable of earthing the buses at the two sides of breaks of the isolating switch safely and synchronously, reducing the problem of serious abrasion of the contacts when the isolating switch and the earth switches are switched on and switched off, achieving steady and reliable motion of the movable contacts of the isolating switches and rapid and convenient earthing of the movable contacts of the earth switches, and is suitable for popularization and application.