Features 【Practical】: Programmable time relay, three-wire input, three-wire output, which solves the problem that some customers are inconvenient to connect the neutral wire. The maximum power reaches 4kW, eliminating the trouble of connecting contactors. 【Time Programmable】: Just set the on/off time, there are 17 on/off settings in total, from Monday to Sunday, any setting is at least one minute apart, the maximum time is 168 hours (equivalent to 1 week), can be temporarily manual On and off. Just set it once and it can loop forever. 【Wide application】: Suitable for three-phase 350V-420V AC motors, such as water pumps, fish pond oxygenation, rice steamers, water heaters, billboards, neon lights, exhaust fans and other equipment. 【Excellent performance】: It can realize unmanned management, safe and reliable, and stable performance. It is a good choice. 【Memory function】: The switch has a built-in rechargeable battery, which can be remembered when power is off. No need to reset the program, convenient and practical. Features:High-performance timer switch, three Wire input and output three Wire, helping to solve the problem that some customers are not convenient to wire neutral wire.The maximum power reaches 4kW, avoiding the trouble of connecting the contactorJust set the time of ON/OFF,with a total of 17 on/off settings,From Monday to Sunday, any setting can be set at least one minute apart and the maximum time is 168 hours (equal to 1 week), which can be turned on and off manually temporarily. As long as it is set once, it can be permanently cycledIt is widely used in three-phase 350v-420vAC motor and other equipment such as water pump, fish pond oxygenation, rice steaming machine, water heater, billboard, neon lamp, exhaust fan and so on.Can achieve unmanned management, safe and reliable, stable performance, is a very good choice.Built-in rechargeable battery, power off memory. No need to reset the program, convenient and practical. Specification:Voltage: 380V/50-60HzControl output: 16A (three-phase direct output)Setting times: 17ON/OFF (day/week)Set time: 1 minute to 168 hoursTravel time error: 1s/24hPower failure memory: more than 180 days (built-in 1.2v rechargeable battery)Installation size: 120*120*52mm/4.7*4.7*2inInstallation method: screw , guide rail (35mm)Weight: Approx.467g/16.5oz Package list:1 x Programmable Time Relay Package List