... off various kinds of electric equipment according to fixed time, It is widely applied to programmable control of ... press the key "hour"and"min".Setting switch-off time (hour ,minute)step4 press the key"prog". ... key "day". Setting the day of switch-off time (everday,5- days,6-days.everyday different etc.) ... phase. It need to connect to three-phase relay whose coil voltage is AC220V/50HZ. the connection ...