Electric circuit breaker with a tubular separator of varying wall thickness

摘要

The invention relates to an electrical interrupting switching element, in particular for interrupting high currents at high voltages, comprising a housing which engages around a contact unit defining the current path through the interrupting switch element, wherein the contact unit has a first and second terminal contact and a disconnection area, wherein the contact unit is formed in that a current can be supplied to it via the first connection contact and can be dissipated therefrom via the second connection contact, or vice versa, wherein the separation region is configured as a tubular element whose axial extension direction runs along an axis X, the tubular element being perpendicular along a plane to the axis X is separable into two parts, whereby the current between the first and the second terminal contact is interrupted, wherein the tubular element along the extension direction of the axis X has two opposite end portions, dadurc h characterized in that the tubular element in a region between the end regions has a minimum wall thickness which increases in each case in the direction of the end regions.