Shower Timer Deta 4" Shower Fan Kit With Timer Inline Extractor Fan Sound output 33dB(A) @ 3m. Product Description · Sleek, slim profile design offering a quiet and efficient performance · Extraction rate 25 litres/second or 90m3 /hour · Noise level of 29dB... Manufactured in compliance with BS EN 60335-2-80., CE approved 464000 - Fantech 464000 - FID Display, Trim Kit (Interior grilles) 28mm diameter x 2mm (visible) x 25mm rear projection. Dimensions: (Fan) 160mm wide x 115mm deep x 115mm tall. Wiring Diagram Extractor Fan With Timer at Carol Hay blog Requires permanent live, switched live and neutral (3 wires excluding earth) at the fan position in order to operate correctly. Extraction rate up to 30 litres per second, 107 cubic meters per hour See important note regarding electrical connection requirements in Product Description , 14 watts power consumption.