Installation box, prepared for the WK terminals 2.5-25mm², suitable for a 20-pin telephone connection strip or as a telephone through-box according to DIN 47614-615, combinable, with protection class IP30, rated insulation voltage: 400V AC, certified according to (DIN EN 50085-1 (VDE 0604-1)), halogen-free, magnet or nail fastening, membrane for perforation, sealing range M16-M50, can be used with a support beamDimensions: 142 x 142 x 70mm