This is a kind of quality intelligent leakage-protecting switch, that integrates an overvoltage protector, undervoltage protector, and overcurrent protector leakage protector. When over-voltage, under-voltage, over-current, or leakage occurs in the line, this product can immediately cut off the powersupply to prevents electrical equipment from burning. The over-voltage, under-voltage, over-current and leakage protections values of this product can be set by yourself. Features: Automatic Reclosing: Intelligently identify the leakage and when it occurs overvoltage and under voltage, the protector will automatically cutoff the powersupply, if the fault has been eliminated, it will automatically reclose and turn on the power. Mobilephone APP Control: After downloading the mobilephone Tuya/SmartLife APPyou can remotely control and view the power on/off switching status of the device whenever and wherever you want via the mobilephone APP. Whether you are on vacation, at work or home, you can enjoy the convenience of the mobilephone APP. APP Data Viewing & Electricity Metering: Support to view the current, power, voltage, leakage current, temperature, number of faults, total battery capacity, and recharge capacity on your cellphone. Record(year, month, day, hour) electricity consumption in different time periods. Photovoltaic Bidirectional Metering: View the electricity input from photovoltaic power generations, and the APP can view the electricity generating input at the time, day, month, and year. With prepaid function. Timing Schedule: Four timing modes of timing mode, countdown mode, cycle iming, jog switch (30 sets of timing settings). And with automatic re-closer ON/OFF function. Multiple Protections: Designed with leakage, short-circuit, over-current, over-voltage, under-voltage protections, etc. Safer to use. APP Parameter Setting: With the under voltage, overvoltage, overcurrent, reconnection time (delay time), overcurrent and leakage protecting time, leakage protecting current, over temperature protecting threshold, over current delay time, loss of current delay time, temperature setting functions. Voice Control: High compatibility, compatible with Alexa and Google Assistant for voice control, , freeing your hands and making it easier to control the device, maximizing the comfort and economy of your home environment, you can enjoy the convenience of technology. Device Share Function: You can share with your family for common control. Suitable for home, office, shopping mall, hotel, etc. Specifications: Name: Circuit Breaker Material: Rated vottage: 230VAC Operation voltage: AC80V-400V(single phase) Rated frequency: 50/60Hz Electric current: (>A) 1-63A Setting Ranges: Under voltage protecting: 80V-210V adjustable Overvoltage protecting: 120-300V adjustable Overcurrent protecting:1.0A-63A adjustable Reconnection time (delay time): 10s-99s adjustable Overcurrent and leakage: 1-30 off adjustable Leakage protecting: 10-99mA adjustable Over temperature: 10-85 adjustable Over current delay time: 1s-15s adjustable Loss of current delay time: 1s-15s adjustable Temperature: -30 to 70 Item size: 92 * 19 * 72mm / 3.62 * 0.75 * 2.83in Item weight: 97g / 3.42ounce Package size: 94 * 21 * 73mm / 3.70 * 0.83 * 0.87in Package weight: 120g / 4.23ounce Packing List: 1 * Circuit Breaker