TM-180 timer analogue mini with battery

The mechanic relay for time is supposed to be used for managing chains with maximum capacity of 3500W.After the setting ,the timer executes the functions we required in 24 hours regime. The minimum period for setting is 15 minutes for TM 180 and 30 minutea for TM 181 as it is executed within 96 and 48pcs segments which the timing of the work and rest of the consumer is being set. The timer is accomplished with a battery which assures the work by 70 hours for TM 180 and 150 hours for TM 181 after power failure.