Vacuum interrupter, having at least one insulating body, a fixed contact, a fixed-contact flange, a moving contact having a longitudinal axis, a moving-contact flange, a moving-contact bearing, and a bellows, wherein the fixed contact is arranged in a stationary manner in the fixed-contact flange, the moving contact is movably guided in the moving-contact bearing, and the moving contact is movably fastened to the moving-contact flange by the bellows, wherein the bellows is fastened to the moving-contact flange by a first bellows end, and the bellows is fastened to the moving contact by a second bellows end, wherein an increased pressure resistance of the vacuum interrupter against ambient pressures over 2 bar is achieved by a sleeve that is fixed on the moving contact, against movements along the longitudinal axis of the moving contact, and that is configured and passed through the moving-contact bearing in such a manner that the moving contact has a moving-contact rod and a moving-contact contact disk, wherein the sleeve is arranged on the moving contact in such a manner that the sleeve extends out from the second bellows end through the moving-contact bearing and is extended out from the bellows through the moving-contact bearing on the moving-contact flange, and the sleeve is fixed on the moving contact, by means of a fastening means, in such a manner that, during the movement of the moving contact, no relative movement along the longitudinal axis of the moving contact occurs between the moving contact and the sleeve, characterized in that the second bellows end is connected to the moving-contact rod via a bellows cap and the sleeve is fixed in position on the moving contact, in the region of the second bellows end and/or in the region of the bellows cap, by means of a press fit, latching, interlocking, soldering, welding, of a thickened portion of the moving contact not emulated by the sleeve. wherein an increased pressure resistance of the vacuum interrupter against ambient pressures over 2 bar is achieved by a sleeve that is fixed on the moving contact, against movements along the longitudinal axis of the moving contact, and that is configured and passed through the moving-contact bearing in such a manner that the moving contact has a moving-contact rod and a moving-contact contact disk, wherein the sleeve is arranged on the moving contact in such a manner that the sleeve extends out from the second bellows end through the moving-contact bearing and is extended out from the bellows through the moving-contact bearing on the moving-contact flange, and the sleeve is fixed on the moving contact, by means of a fastening means, in such a manner that, during the movement of the moving contact, no relative movement along the longitudinal axis of the moving contact occurs between the moving contact and the sleeve, characterized in that the second bellows end is connected to the moving-contact rod via a bellows cap and the sleeve is fixed in position on the moving contact, in the region of the second bellows end and/or in the region of the bellows cap, by means of a press fit, latching, interlocking, soldering, welding, of a thickened portion of the moving contact not emulated by the sleeve.