Electrical high-voltage disconnector, comprising - a first contact group comprising a guide element and a first contact element, which is arranged movably along a disconnection axis and comprises a first nominal conductor contact element and a first arc contact; - a third arc contact which is arranged movably along the disconnection axis in the first arc contact, - a retracting system for retracting the third arc contact in an opening direction, wherein the first arc contact is operatively connected to the third arc contact via the retracting system in such a way that the first arc contact is movable in the direction of the disconnection axis relative to the third arc contact; - a drive system for moving the first contact element along the disconnection axis relative to a second contact group in order to open and to close the disconnector, wherein the second contact group comprises a second nominal conductor contact element and a second arc contact; - wherein the second arc contact has a holding means for interacting with a mating holding means of the third arc contact; and - wherein, during opening of the disconnector once a nominal current path has opened, the first contact element is capable of moving further relative to the guide element and to the disconnection axis in an opening direction within a first position region of the first contact element, while the holding means is held on the mating holding means in such a way that the third arc contact remains held on the second arc contact, while the retracting system is prestressed and builds up a prestressing force, and - wherein, when the first contact element passes over to a second position region adjoining the first position region, the prestressing force of the restoring system is higher than a predefinable holding force of the holding means on the mating holding means, which holding force acts in the direction of the disconnection axis, with the result that the third arc contact is retracted by the retracting system in the opening direction, with the result that the second contact group is electrically disconnected from the first contact group. - a first contact group comprising a guide element and a first contact element, which is arranged movably along a disconnection axis and comprises a first nominal conductor contact element and a first arc contact; - a third arc contact which is arranged movably along the disconnection axis in the first arc contact, - a retracting system for retracting the third arc contact in an opening direction, wherein the first arc contact is operatively connected to the third arc contact via the retracting system in such a way that the first arc contact is movable in the direction of the disconnection axis relative to the third arc contact; - a drive system for moving the first contact element along the disconnection axis relative to a second contact group in order to open and to close the disconnector, wherein the second contact group comprises a second nominal conductor contact element and a second arc contact; - wherein the second arc contact has a holding means for interacting with a mating holding means of the third arc contact; and - wherein, during opening of the disconnector once a nominal current path has opened, the first contact element is capable of moving further relative to the guide element and to the disconnection axis in an opening direction within a first position region of the first contact element, while the holding means is held on the mating holding means in such a way that the third arc contact remains held on the second arc contact, while the retracting system is prestressed and builds up a prestressing force, and - wherein, when the first contact element passes over to a second position region adjoining the first position region, the prestressing force of the restoring system is higher than a predefinable holding force of the holding means on the mating holding means, which holding force acts in the direction of the disconnection axis, with the result that the third arc contact is retracted by the retracting system in the opening direction, with the result that the second contact group is electrically disconnected from the first contact group.