Indicator circuits for electric fuse devices

摘要: The first and the second terminals of a main fuse device are respectively connected with inlet an electrical element or circuit which is normally in state as long voltage across said negligible, but brought to by appears same when has blown, reducing resistor being inserted between terminal inlet. In order protect this auxiliary disposed terminal, while point junction threshold such neon bulb. When blows, bulb reaches thereof heavy current flows through blows turn. indicator may be provided feed back means maintain it its after blowing device.