A micro switch is a type of mechanical switch that is commonly used in electronic devices. Its small size, low cost, and high reliability make it an ideal choice for various applications. One of the most common types of micro switch is the 4 pin micro switch. In this article, we will provide a comprehensive guide on the 4 pin micro switch wiring diagram, covering everything you need to know about it.
What is a 4 Pin Micro Switch?
A 4 pin micro switch is a type of micro switch that has four terminals. These terminals are used to connect the switch to an external circuit. The four pins of a 4 pin micro switch are usually labeled as:
- Common (COM)
- Normally Open (NO)
- Normally Closed (NC)
- Ground (GND)
The common pin is connected to either the Normally Open or Normally Closed pin depending on the state of the switch. The ground pin is used to connect the switch to the ground of the external circuit.
4 Pin Micro Switch Wiring Diagram
The wiring diagram of a 4 pin micro switch is pretty straightforward. There are two basic configurations depending on whether you want the switch to be Normally Open or Normally Closed.
Normally Open Configuration
In the Normally Open configuration, the switch is open when it is not actuated. When the switch is actuated, the circuit is closed. The wiring diagram for this configuration is as follows:
| Terminal | Wire Color |
|---|---|
| COM | Black |
| NO | Red |
| NC | Not Connected |
| GND | Green/Yellow |
Normally Closed Configuration
In the Normally Closed configuration, the switch is closed when it is not actuated. When the switch is actuated, the circuit is open. The wiring diagram for this configuration is as follows:
| Terminal | Wire Color |
|---|---|
| COM | Black |
| NO | Not Connected |
| NC | Red |
| GND | Green/Yellow |
FAQs
What is a micro switch?
A micro switch is a type of mechanical switch that is commonly used in electronic devices. Its small size, low cost, and high reliability make it an ideal choice for various applications.
What is a 4 pin micro switch?
A 4 pin micro switch is a type of micro switch that has four terminals. These terminals are used to connect the switch to an external circuit.
What are the four pins of a 4 pin micro switch?
The four pins of a 4 pin micro switch are usually labeled as Common (COM), Normally Open (NO), Normally Closed (NC), and Ground (GND).
What is the wiring diagram for a 4 pin micro switch?
The wiring diagram of a 4 pin micro switch depends on whether you want the switch to be Normally Open or Normally Closed. For the Normally Open configuration, the wiring diagram is: COM – Black, NO – Red, NC – Not Connected, GND – Green/Yellow. For the Normally Closed configuration, the wiring diagram is: COM – Black, NO – Not Connected, NC – Red, GND – Green/Yellow.
Where can I buy a 4 pin micro switch?
You can buy a 4 pin micro switch from various online retailers or electronic component stores. Some popular options include Amazon, Digi-Key, and Newark.
What are some common applications of a 4 pin micro switch?
Some common applications of a 4 pin micro switch include door interlocks, limit switches, and safety switches.
In conclusion, the 4 pin micro switch wiring diagram is a simple yet important aspect of using this type of switch in your electronic circuit. With the knowledge and understanding of its wiring, you can effectively use this switch to control various electronic functions with ease.
