Automatic door bottom seal EllenMatic Soundproof with silicone seal. One-sided release on the hinge side. Installation in doors with 30 and 60 minutes fire resistance. Noise insulation: RS,w,0 51 dB (tested by IFT Rosenheim). Fire resistance: 30 and 60 minutes. Tested with 1,000,000 closing movements. Installation on the underside of interior and exterior doors. Material: aluminium. Groove size: 15 x 30mm. Seal: silicone. Max. stroke: 20mm. Adjustability: manually adjustable release button. Release button with large contact surface enables installation without pressure plate. Large operating range thanks to maximum stroke of 20mm. Parallel release without lateral offset. Tolerance compensation of 1-2mm is provided. Automatic inclination for uneven floors. The no-break function ensures that the inner mechanism springs back if obstacles such as cables are under the door. The door can be opened and closed without the need for a pressure plate. Can be shortened: standard lengths by max. 150mm. Installation: with mounting bracket. Minimum length: 300mm. Max. length: 1,600mm.