Features Remote Control Functionality: Seamlessly switch between WiFi and Bluetooth connections, ensuring uninterrupted operation even in the event of WiFi interference, providing enhanced convenience and control. Stable Operation: Withstands impulse voltage up to 6000V, ensuring stable performance and extended service life, making it reliable even under overvoltage conditions. Reliable Cloud Server Support: Benefit from powerful and professional cloud server services, ensuring dependable and safe background support, enhancing practicality and efficiency. Quick and Convenient Pairing: Enables rapid and effortless pairing of multiple products with various specifications, simplifying the setup process for a hassle-free experience. Enhanced Safety Features: Equipped with a secure lock and interference prevention capabilities, ensuring safe and straightforward electric maintenance, providing peace of mind. Specification: Item Type: Circuit Breaker Material: PA66-DSM Flame Retardant Shell Rated Voltage: AC 400V Nominal Short Circuit Breaking Capacity: nic: 6kA Ics: 6kA. Rated Impulse Withstand Voltage: 6000V Number of Poles: 4P Working Temperature: -25℃~+65℃ Protection Level: IP20 Mechanical Life: ≥10000 Times Electrical Life: ≥6000 Times Instantaneous Trip Form: Type C Control Mode: Working mode, pairing mode. Start Method: WiFi mobile phone APP remote switch, Bluetooth. Trip Method: Over current trip. Application Scope: For isolated island power supply, tower equipment, outdoor lighting, house power supply, field engineering, mountain facility, street light control. Package List: Item Type: Circuit Breaker Material: PA66-DSM Flame Retardant Shell Rated Voltage: AC 400V Nominal Short Circuit Breaking Capacity: nic: 6kA Ics: 6kA. Rated Impulse Withstand Voltage: 6000V Number of Poles: 4P Working Temperature: -25℃~+65℃ Protection Level: IP20 Mechanical Life: ≥10000 Times Electrical Life: ≥6000 Times Instantaneous Trip Form: Type C Control Mode: Working mode, pairing mode. Start Method: WiFi mobile phone APP remote switch, Bluetooth. Trip Method: Over current trip. Application Scope: For isolated island power supply, tower equipment, outdoor lighting, house power supply, field engineering, mountain facility, street light control. Note: Please install it by a professional electrician, otherwise there may be risks of electric shock. Package List 1 x Circuit Breaker 1 x User Manual