Overview This all-in-one design smart IOT device applied to AC 230V/400V, 50/60Hz, rated current up to 63A/100A single or three phase circuits in resident, commercial and industrial buildings with 2.4G WiFi, to measure electricity consumption and offer prepayment as option; to remote control and set protections against over/under voltage, overcurrent, residual current(leakage), high temperature via mobile App anytime anywhere; and auto reclosing after protected conditions recovery to achieve non-attended management; programmable timing control to make your scheduled life efficiently and save electricity, and sharing device with your family or persons concerned in your team. It also supports local manual control without WiFi, and voice control through AI speaker, such as Alexa, Google Aistant, Yandex Alice, and etc. Main specificationsPoles: single phase 2P, three phase 4P available;Rated voltage: 2P AC230V, 4P AC3x230V/400V (over/under voltage protection adjustable);Rated current: 1~63A/100A adjustable;Frequency: 50/60Hz;Capacity: resistive load13kW, inductive load6kW;Self-consumption: <2W;Mounting: 35mm din-rail; Functional features01. Four options on control:- Remote control anytime anywhere (mobile app, Tuya Smart, Smart Life)- Voice control (AI speaker, Alexa, Google, Alice, ...)- Timing control (programmable Schedule)- Manual control (by keys and handle)02. Monitor real-time electricity consumption and statistics on phone (A, V, mA, kW, kW/h, );03. Prepaid metering mode available as option by switch;04. Adjustable protections against over/under voltage, overcurrent, residual current(leakage), high temperature;05. Overcurrent protection: 1~63A/100A adjustable, 63A as default;06. Over voltage protection: 250~400V adjustable, 275V as default;07. Under voltage protection: 150~190V adjustable, 170V as default;08. Residual current(leakage) protection: 10~100mA adjustable, 50mA as default;09. Alarm temperature protection: 50~90 adjustable, 60 as default;10. Tripping temperature protection: 60~100 adjustable, 70 as default;11. Recovery on-delay time: 5~90s adjustable, 30s as default (manual setting on device by keys, not in app);12. 2P ground wiring for surge protection, 4P three phase four wire solve three phase unbalance;13. Local manual setting on device (no need WiFi support);14. Auto-reclosing after protected conditions recovery;15. Timing schedule programmable on App;16. Device sharing among family or your team; Note: If the protector trips 3 times due to leakage, it will not auto-reclosing until the fault fixed by user to ensure safety!