Electrical interrupter switching element having passive interruption tripping, in particular for interrupting high currents at high voltages

An interruption switch for interrupting high currents at high voltages comprises:

• a casing, which surrounds a contact unit defining a current path through the interruption switch,
• wherein the contact unit has a first connection contact and a second connection contact, a separation region and a sabot,
• wherein the contact unit is formed such that a current to be interrupted is supplied to it via the first connection contact and discharged therefrom via the second connection contact, or vice versa,
• at least one chamber in the interruption switch, at least partially delimited by the separation region, is filled with a vaporizable medium, such that the separation region is in contact with the vaporizable medium, and
• wherein
• the separation region, the sabot and the vaporizable medium are formed such that the separation region is separable into at least two parts through a supplied current when a threshold amperage is exceeded, wherein an electric arc forming between the two parts of the separation region vaporizes the vaporizable medium, such that a gas pressure to which the sabot is exposed forms, wherein the sabot in the casing is moved in a movement direction from a starting position into an end position, wherein in the end position of the sabot an insulation spacing is achieved between the first and the second connection contact.