The NC proximity switch has many kinds of conveniences for prospective users. First Its precise and reliable detection ensures that misproductions by false triggering don't happen at production operations Also, It has no moving parts, So there is less wear and tear compared to actuators which in itself gives a longer life. Keep a clean actuator setup means increased reliability over time Thirdly The NC proximity switch is rugged and can take harsh industrial conditions, including vibrations and high temperatures, at which many components would fail prematurely under perfect lighting Its rapid response time is of great benefit to a production operation as processes can run continuously with no shutdowns. Hence The fact that it is normally closed adds another element of safety for operating personnel. When an object comes within the range, the machine stops and so there are no accidents or anything damaged as would otherwise happen.