世界上最早的断路器产生于1885年，它是一种刀开头和过电流脱扣器的组合。
The earliest circuit breaker in the world came into being in 1885. It is a combination of knife opener and overcurrent tripper.
1905年，具有自由脱扣装置的空气断路器诞生。
In 1905, air circuit breaker with free tripping device was born.
1930年以来，随着科技的进步，电弧原理的发现和各种灭弧装置的发明，逐渐形成了目前的机构。
Since 1930, with the progress of science and technology, the discovery of arc principle and the invention of various arc extinguishing devices have gradually formed the current mechanism.
21世纪50年代末，由于电子元件的兴起，又产生了电子脱扣器，到了今天，由于单片机的普及又有了智能型断路器的问世。
At the end of the 1950s, with the rise of electronic components, electronic trippers came into being. Today, with the popularity of microcontrollers, intelligent circuit breakers have come into being.
今后断路器会向着专用型、多功能、低过电压、智能化等方向发展。
In the future, circuit breakers will develop in the direction of special purpose, multi-function, low overvoltage and intellectualization.