D4N-4B2G

Due to market price fluctuations, if you need to purchase or consult the price. You can contact us or emial to us:   sales@allicdata.com

Snap Action, Limit Switches

D4N-4B2G is an electrical switch, commonly known as snap action, limit switches, which is widely used in industrial applications. This type of switch is connected to an electrical circuit to indicate the state or position of the indicating mechanism, as well as to turn circuit power on/off when the switch reaches the limit. It is primarily used in applications such as process controllers, on-off switches, controlling the speed of motors, and reverse switches, among others. It is a small, low cost, and highly reliable device which has the capability to sense a wide range of position.

Application Field

D4N-4B2G Snap Action, Limit Switches is mostly used in the following field of applications:

• Controlling the motion of small objects
• Indicating the level of liquid
• Controlling the speed of motors
• Closing and opening doors
• Indicating the position of moving parts
• Regulating the flow of gas
• Opening or closing valves
• Controlling the position of aircraft parts
• Servo Control
• Position display

Working Principle

D4N-4B2G Snap Action, Limit Switches are usually operated by one of two methods. The first method is a mechanical action, in which a spring pushing against a special contact arm holds the switch in the open position until further movement pushes it into the closed position. The second method is an electrical action, in which a spring holds the switch in the open position until current flows through the coil of the switch, pushing its arm into the closed position.

When the switch is in its closed position an electrical connection is made and power is provided to a device or circuit. The presence of power energizes whatever the control circuit is connected to and the mechanism operates as desired. For example, in a motor control system, the switch would energize the motor, causing it to move forward (or backward). When the switch is in its open position the motor is disconnected from the power source, so no power is supplied to any device.

In some cases the switch is designed to act as a safety system. When the switch is in its closed position, it can protect against unintentional start up of a machine or device by preventing electrical power from flowing to the system. This is important when dealing with hazardous machinery or processes which require special safeguards. Additionally, the switch can be designed to act as a limit switch, preventing the system from overshooting its intended range of motion.

Conclusion

D4N-4B2G Snap Action, Limit Switches are widely used in a variety of industrial settings, from controlling the speed of motors to regulating the flow of gas. The switch is small, low cost, and highly reliable, making it the preferred choice for many applications. The switches are operated in one of two ways, either mechanically or electrically, and can act as a safety device, protecting against unintentional start up of a machine or device.

The specific data is subject to PDF, and the above content is for reference