Closes off open bottom of sloped-front enclosures that are table-top mounted or suspended from overhead. Base is 14 gauge steel and has a ground stud provided. Foam-in-place gasket assures a water-tight and dust-tight seal. Steel bases are finished wit h RAL 7035 textured light-gray polyester powder paint. A top support bracket can be installed inside a 600-mm wide base for reinforcement when a COMPACT Pendant Arm Series 4 System 50, 60 or 80 is attached from below.