HIGH VOLTAGE CIRCUIT-BREAKER

The invention relates to a high voltage circuit-breaker comprising a housing (1) defining a volume (2) for an insulating gas, at least two making and breaking units (3) arranged in the housing (1), whereby each making and breaking unit (3) comprises a first contact element (4) and a second contact element (5) for forming an electrically conductive connection, at least the first contact element (4) is movable along an axially extending switching axis (6) of the high voltage circuit-breaker, and the first contact elements (4) of the at least two making and breaking units (3) are motion-coupled; a drive device (7) connected to the first contact element (4) of at least one making and breaking unit (3) and configured for moving the first contact element (4) along the switching axis (6) over a moving distance for separating conductive connections; and a gas damper (9) connected to the first contact element (4) of the at least one making and breaking unit (3) and configured for damping the movement of the first contact element (4) with a damping force increasing in relation to the moving distance.