NA8G series universal circuit breaker (referred to as circuit breaker) rated current from 200A to 6300A, rated working voltage AC 415V, 690V, suitable for AC 50Hz, mainly used in distribution network, used to distribute electric energy, protect lines and power equipment To protect against overload, undervoltage, short circuit, single phase grounding and other faults. The circuit breaker has an artistic appearance, high breaking, zero arcing, and various intelligent protection functions, which can be selectively protected, accurate in operation, avoid unnecessary power failure, and improve the reliability of power supply. The product can be used for the incoming or outgoing lines, and the drawer type circuit breaker has the function of isolation. The circuit breaker can be widely applied to power stations, factories, mines and modern high-rise buildings, especially in smart buildings, and is also widely used in green projects such as wind power and solar power. Meet the standards: GB 14048.2, IEC 60947-2.