Filter box for use in industrial area to protect e.g. switch cabinet against splash of water, has main base anchored at interior of continuous opening of wall of switch cabinet and/or control panel by flexible fastening insertion pieces

摘要

The box (1) has a grid cover (5), and a main base (3) anchored at an interior of a continuous opening of a wall of a switch cabinet and/or control panel by flexible fastening insertion pieces (4). The main base comprises a rear grid, which is connected with peripheral contrast frames by lateral walls. The contrast frames consist of lateral edges that are connected with an upper edge and a lower edge. The fastening insertion pieces comprise a section in the form of a convex flat spring and consist of a material Hytrel(RTM: thermoplastic polyester elastomer).