Contact arrangement with contact pieces guided towards each other and are displaced in a longitudinal manner and a roller-type contacts for making contact in one such contact arrangement

A contact arrangement, comprising:

• at least one outer contact piece and at least one inner contact piece, which are guided to move in a longitudinal direction with respect to one another;
• and
• a roller-type contact, which has contact rollers and is arranged between the inner contact piece and the outer contact piece forming an electrically conductive connection, wherein
• the at least one of the outer contact piece has an opening having a limit wall which is concave in cross section, roller-type contact being arranged at least partially in the opening for transferring the current,
• the outer contact piece is a stationary contact tube, in which the inner contact piece is arranged as a contact bolt which is guided to move in the longitudinal direction, and
• the outer contact piece is a stationary contact tube, in which the inner contact piece is guided to move in the longitudinal direction, the inner contact piece having a contour which is star-shaped in cross section, such that subregions are delimited between the inner contact piece and the contact tube, contact rollers being arranged in the subregions.