Features Remote Control: Seamlessly switch between WiFi and Bluetooth connectivity, ensuring uninterrupted operation even in cases of WiFi interference. Stable Working: Withstands up to 6000V impulse voltage, ensuring stable performance and a long service life, even under overvoltage conditions. Great Service: Leverage the power of a professional cloud server for reliable and secure background services, ensuring practical and efficient operation. Easier Pairing: Effortlessly pair multiple products of various specifications simultaneously, offering quick and convenient pairing. Security Lock: Equipped with a safety lock for safe and simple electric maintenance, while also preventing contact interference. 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: 1 x Circuit Breaker 1 x User Manual 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