Features Enhanced WiFi Signal: Built-in WiFi antenna enhances signal transmission, preventing contact interference and maintaining a clean appearance. Reliable Cloud Server: Professional cloud server ensures reliable and secure background services for uninterrupted usage. High Voltage Endurance: Withstands impulse voltage up to 6000V, effectively extending equipment lifespan even under overvoltage conditions. Safety Lock Design: Specially designed safety lock ensures safe and convenient circuit maintenance operation. Convenient Control: Easily control 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: 1 x Smart Circuit Breaker 1 x User Manual 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