Development status of Circuit breakers
The world's first circuit breaker, produced in 1885, is a combination of a knife opening and a overcurrent stripper. In the 1905, an air circuit breaker with a free buckle device was born. Since the 1930, with the progress of science and technology, the discovery of arc principle and the invention of various arc extinguishing devices, gradually formed an institution. In the late 50, due to the rise of electronic components, and produced an electronic stripper, to today, due to the popularity of single-chip microcomputer and the advent of intelligent circuit breakers.