Features High Performance Timer Switch: Three-phase smart digital timer switch with a maximum power of 4kW. Solves the problem of inconvenient neutral wiring for customers. Avoids the need to connect a contactor. Flexible ON/OFF Settings: Set up to 17 different ON/OFF settings from Monday to Sunday, with a minimum time interval of one minute and a maximum time of 168 hours (1 week). Allows for manual temporary control and permanent cycling after initial setup. Wide Range of Applications: Suitable for use with three-phase 350V-420V AC motors and various equipment such as water pumps, fish pond oxygenation systems, rice steamers, water heaters, billboards, neon lamps, and exhaust fans. Unmanned Management: Achieve safe and reliable unmanned management with stable performance. Offers convenience and peace of mind. Built-in Rechargeable Battery: Includes power-off memory function, eliminating the need to reset the program after a power outage. Provides convenient and practical usage. 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