Features Built-in WiFi Antenna: Enhances WiFi signal transmission while maintaining a clean appearance, minimizing contact interference for improved performance. Powerful Cloud Server: Reliable and secure background services provided by a professional cloud server for seamless operation and peace of mind. High Impulse Withstand Voltage: Withstands up to 6000V impulse voltage, ensuring prolonged equipment lifespan even under overvoltage conditions. Security Maintenance Lock: Specially designed safety lock for circuit maintenance, ensuring safe and convenient operation. Mobile App Control: Easily control the device via mobile app using WiFi and Bluetooth, with support for pairing multiple products simultaneously. Specification: Item Type: Smart Circuit Breaker Material: PA66 flame retardant shell Rated Voltage: AC 400V Nominal Short Circuit Breaking Capacity: Nic: 6kA, Ics: 6kA Rated Impulse Withstand Voltage: 6000V Number of Poles: 3P Working Temperature: -25℃-+65℃ Protection Level: IP20 Mechanical Life: ≥10000 times Electrical Life: ≥6000 times Instantaneous Trip Form: C Type Control Mode: Working mode, pairing mode Start Method: WiFi, for Tuya mobile phone APP remote switch, Bluetooth Trip Method: Over current trip Application Scope: Isolated island power supply, tower equipment, outdoor lighting, house power supply, field engineering, mountain facilities, street light control Package List: Item Type: Smart Circuit Breaker Material: PA66 flame retardant shell Rated Voltage: AC 400V Nominal Short Circuit Breaking Capacity: Nic: 6kA, Ics: 6kA Rated Impulse Withstand Voltage: 6000V Number of Poles: 3P Working Temperature: -25℃-+65℃ Protection Level: IP20 Mechanical Life: ≥10000 times Electrical Life: ≥6000 times Instantaneous Trip Form: C Type Control Mode: Working mode, pairing mode Start Method: WiFi, for Tuya mobile phone APP remote switch, Bluetooth Trip Method: Over current trip Application Scope: Isolated island power supply, tower equipment, outdoor lighting, house power supply, field engineering, mountain facilities, street light control Note: Ask a professional electrician to install it, otherwise there may be danger of contacts. Package List 1 x Smart Circuit Breaker 1 x User Manual