Linked high voltage isolated switch

The utility model discloses a linked high voltage isolated switch. The utility model comprises three pairs of movable contact seats and three pairs of static contact seats which are all arranged on a frame. The utility model is characterized in that each of the movable contact seats is provided with a contact knife; two contact knives of each phase are in backward arrangement; a main shaft of the frame is provided with three crank arms, and the crank arm of each phase is respectively provided with two pull rods which are connected with the two contact knives of each phase. When two switches act across, the junction points of the two pull rods and the crank arm are positioned at the same side of the main shaft; when the two switches act synchronously, the junction points of the two pull rods and the crank arm are respectively positioned at both sides of the main shaft. The utility model has the advantage of synchronous act and can perform the linkage of the two switches by one operation.