Housing wall of installation device e.g. installation distributor has perforation along lead through edge whereby perforation opening completely penetrates housing wall

摘要

The housing wall (1) has a perforation (8,9,10) along the lead through edge. A perforation opening completely penetrates the housing wall whereby the housing wall has a perforated bar. The closing element (5,6,7) is connected with the lead through (2,3,4) for surrounding the wall area. The perforation bar forms a rated break point for eliminating the closing element.