MicroRex T31 time switch, mechanical with 24-hour programme (DIN rail-mounted time switch for top-hat rail, 3-module), 412812 Analogue time switch: The MicroRex T31F analogue time switch from Legrand is equipped with a 24-hour programme and can therefore be used as a daytime time switch. The day timer is designed for the top-hat rail of your distribution board installation. Thanks to the built-in synchronous motor, the timer provides mains-synchronised accuracy. The shortest switching time is 30 minutes. The timer has a switching accuracy of +/- 5 minutes and has switching steps of 15 minutes. ON-Automatic-OFF: The timer has a manual switch. The pointer can be rotated forwards and backwards, making it easier to set summer and winter time, for example.