In addition, the fundamental feature of the micro-switch is the tipping-point mechanism. Similarly, when you open the lever of the switch then the circuit’s normally close or NC pin will carry current whereas normally open or NO circuit can insulate electrically. When you press the lever of the switch, then the circuit’s normally closed pin will be opened, and the normally opened pi will be closed. So this switch working principle mainly includes the following. The working principle of a micro switch is, that once this switch touches an object, then contacts will change their position. The moving arm is a lever in a switch, used to activate & operate the micro switch. The main function of this part is to make or break electrical continuity. The contact in a switch is an electrically conductive material piece, normally metal.

So it allows the flow of current throughout the circuit.

The contacts of the switch will be in closed condition. It is the opposite function of the NO terminal. NC terminal is also known as a normally close terminal. So, if you connect it within a circuit, there is no flow of current within the circuit. Here, NO terminal specifies the contact of the switch will be open by default. NO terminal is also known as a normally open terminal. This is used to give support to the micro switch.