1、PREVENT CONTACT INTERFERENCE: Built in WiFi antenna, under the premise of enhancing the stable sending and receiving of WiFi signals, keep the appearance clean and prevent contact interference 2、RELIABLE AND SAFE: Powerful and professional cloud server provides you with reliable and safe background services 3、EFFECTIVELY IMPROVED SERVICE LIFE: Impulse withstand voltage is 6000V, to ensure that the service life of the equipment is effectively improved even under overvoltage conditions 4、SAFE AND CONVENIENT: Maintenance safety lock design, specially designed circuit maintenance safety lock, safe and convenient 5、SIMULTANEOUS PAIRING OF MULTIPLE PRODUCTS: Supports simultaneous pairing of multiple products, all specifications support simultaneous pairing, convenient and fast 1 x Smart Circuit Breaker1 x User Manual Item Type: Smart Circuit BreakerMaterial: PA66-DSM flame retardant shellRated Voltage: AC 220V (± 20 V)Maximum Withstand Voltage of Shell: 400VNominal Short Circuit Breaking Capacity: Nic: 6kA, Ics: 6kARated Impulse Withstand Voltage: 6000VNumber of Poles: 2PWorking Temperature: -25℃~+65℃Protection Level: IP20Mechanical Life: ≥10000 TimesElectrical Life: ≥6000 TimesInstantaneous Trip Form: Type CControl Mode: Working mode, pairing modeStart Method: WiFi mobile phone APP for Tuya 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