Feature 1 [WIFI ANTENNA] Built in WiFi antenna, under the premise of enhancing the sending and receiving of WiFi signals, keep the appearance clean and prevent contact interference. 2 [CLOUD SERVER] Powerful and professional cloud server provides you with reliable and safe background services. 3 [WITHSTAND VOLTAGE] The impulse withstand voltage is 6000V, ensuring that the service life of the equipment can be effectively improved even under overvoltage conditions. 4 [SECURITY LOCK] Specially designed circuit maintenance safety lock, which is safe and convenient in operation. 5 [EASY CONTROL] Can use the mobile phone APP WiFi and Bluetooth control, and support multiple products to pair at the same time.Item Type: Smart Circuit BreakerMaterial: PA66 flame retardant shellRated Voltage: AC 400VNominal Short Circuit Breaking Capacity: Nic: 6kA, Ics: 6kARated Impulse Withstand Voltage: 6000VNumber of Poles: 3PWorking Temperature: -25-+65Protection Level: IP20Mechanical Life: 10000 timesElectrical Life: 6000 timesInstantaneous Trip Form: C TypeControl Mode: Working mode, pairing modeStart Method: WiFi, for Tuya mobile phone APP remote switch, BluetoothTrip Method: Over current tripApplication Scope: Isolated island power supply, tower equipment, outdoor lighting, house power supply, field engineering, mountain facilities, street light control Package List1 x Smart Circuit Breaker1 x User ManualNoteAsk a professional electrician to install it, otherwise there may be danger of contacts.