Electrical interruption switching element with a tubular separating element with varying wall thickness

An electrical interruption switch for interrupting high currents at high voltages, the electrical interruption switch comprising:

• a casing surrounding a contact unit defining a current path through the interruption switch,
• the contact unit having a first connection contact and a second connection contact and a separation region,
• the contact unit configured to receive a current supplied to the contact unit via the first connection contact and discharge the current therefrom via the second connection contact, or vice versa,
• the separation region comprising a tubular element, an axial direction of extent of which runs along an axis X, wherein the tubular element is separable into two parts along a plane perpendicular to the axis X, whereby the current is interrupted between the first connection contact and the second connection contact,
• the tubular element having two opposite end regions along a direction of extent of the axis X,
• the tubular element having a minimum wall thickness, which increases, in respective directions of the two opposite end regions, in a region between the two opposite end regions.