Legrand MicroRex Analogue Time Switch Legrand MicroRex programmable time switches with analogue dial. Daily Programme ( 897-6788 , 897-6891 , 897-6920 , 897-6797 & 897-6908 ) DIN Rail mounting 24 h programme 1 channel Programmed via captive segment Manual changeover to summer/winter time Minimum switching time between 15 or 30 min, depending on model 230 V supply voltage Weekly Programme ( 897-6905 ) DIN Rail mounting 7-day programme Programmed via captive segment Manual changeover to summer/winter time Minimum switching time between 2 and 4 h, depending on model 100 h working reserve 230 V supply voltage Analogue