Digital Time Switch THC-317 Features: For three phase usage Daily and weekly programmable Low power consumption 17 groups setting program Fixed ON or OFF switching 30 days power reserve CE approval Technical data: Model : THC-317 Display : LCD Rating : 3 cross 16A 415VAC Switching contact: 1 changeover switch No. of program : 17 groups Min Interval time: 1 Min Back-up battery : 1.2V rechgeable Accuracy : +or-1s per day Mounting Type : Din Rail and Panel Mounting Ambient Temperature: -20 to 55 centigrade