Timeguard digital 7 day general purpose time switch model ntt07 timeguard ntt07 p this time switch is an easy to use digital timer designed for wall mounting it can control outputs of up to 16a which makes it suitable for domestic immersion heaters p p the ntt07 comes with a link in place which can be removed to provide volt free contacts if required making it suitable for a wider range of switching applications if volt free is not required the link must be left in place p p wi