Feature: 1. Remote Control: Supports WiFi and and Bluetooth connection. When there is interference and WiFi is disconnected, Bluetooth is connected for work. 2. Stable Working: The impulse withstand voltage is 6000V, which promises stable operation and long service life even under over voltage conditions. 3. Great Service: Powerful and professional clouds server will provide you with reliable and safe background services, very practical and efficient. 4. Easier Pairing: Enables simultaneous pairing of multiple products in a variety of specification, and the pairing is very quick and convenient. 5. Security Lock: Equipped with safe lock, the electric maintenance is safe and simple, and the circuit breaker can also prevent 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 Breaker1 x User Manual Note: Please install it by a professional electrician, otherwise there may be risks of electric shock.