7 Pin Momentary Switch is a popular component in electronic circuits that are used to control the operation of different devices, machines, and systems. It is a type of switch that has seven pins or contacts, which are used to connect the switch to the circuit. The seven pins of the switch are usually labeled as NO, COM, NC, C1, C2, C3, and C4. In this article, we will discuss the wiring diagram of the 7 Pin Momentary Switch and its various applications.
Wiring Diagram of 7 Pin Momentary Switch
The wiring diagram of 7 Pin Momentary Switch is shown below:
| Pin No. | Label | Description |
|---|---|---|
| 1 | NO | Normally Open |
| 2 | COM | Common |
| 3 | NC | Normally Closed |
| 4 | C1 | Contact 1 |
| 5 | C2 | Contact 2 |
| 6 | C3 | Contact 3 |
| 7 | C4 | Contact 4 |
The 7 Pin Momentary Switch has three main contacts labeled as NO, COM, and NC. When the switch is not pressed or in the off state, the COM contact is connected to the NC contact, and when the switch is pressed or in the on state, the COM contact is connected to the NO contact. The switch also has four additional contacts labeled as C1, C2, C3, and C4, which are used for different applications.
NO, COM, and NC Contacts
The NO contact is used to connect the switch to a device or circuit in the open state. When the switch is pressed, this contact is closed, and the circuit is completed. The NC contact is used to connect the switch to a device or circuit in the closed state. When the switch is pressed, this contact is opened, and the circuit is broken. The COM contact is the common contact that is used to connect the switch to the power source or ground.
C1, C2, C3, and C4 Contacts
The C1, C2, C3, and C4 contacts are used for different applications as follows:
- C1 and C2 Contacts: These contacts are used to connect two devices or circuits together. When the switch is pressed, the C1 and C2 contacts are connected, and the two devices or circuits are connected.
- C3 Contact: This contact is used to connect a device or circuit to the power source or ground. When the switch is pressed, this contact is connected to the power source or ground.
- C4 Contact: This contact is used to provide feedback or signal to the circuit. When the switch is pressed, this contact is connected to the circuit, and a signal or feedback is generated.
Applications of 7 Pin Momentary Switch
The 7 Pin Momentary Switch is used in a wide range of electronic circuits and systems. Some of the common applications of the switch are:
- Control of Machines: The switch is used to control the operation of machines, such as robots, CNC machines, and 3D printers.
- Control of Appliances: The switch is used to control the operation of appliances, such as home automation systems, air conditioners, and heaters.
- Security Systems: The switch is used in security systems to arm and disarm the system or to trigger an alarm.
- Automotive Systems: The switch is used in automotive systems, such as power windows, power door locks, and power seats.
- Industrial Control Systems: The switch is used in industrial control systems, such as process control, power distribution, and plant automation.
FAQ
What is a momentary switch?
A momentary switch is a type of switch that is only on when it is being pressed or held down. As soon as the button is released, the switch turns off. This is different from a latching switch, which stays on even after it has been pressed once until it is pressed again to turn it off.
How do I wire a 7 Pin Momentary Switch?
To wire a 7 Pin Momentary Switch, you need to connect the NO, COM, and NC contacts to the device or circuit that you want to control. You can also use the C1, C2, C3, and C4 contacts for different applications, such as connecting two devices or circuits, providing feedback or signal to the circuit, or connecting to the power source or ground.
What is the difference between NO and NC contacts?
The NO contact is normally open, which means it is not connected to the circuit unless the switch is pressed. The NC contact is normally closed, which means it is connected to the circuit unless the switch is pressed.
What are the applications of 7 Pin Momentary Switch?
The 7 Pin Momentary Switch is used in a wide range of electronic circuits and systems, such as control of machines, control of appliances, security systems, automotive systems, and industrial control systems.
