D4N-1D20

Snap Action, Limit Switches

D4N-1D20 is a type of Limit Switch which is usually used in a wide range of applications and industries such as automotive, homes, machine tool safety, process control and security systems. The switch has a life expectancy of 10,000,000 cycles, making it suitable for applications that require long life reliable operation.

Application Field and Working Principle:

The D4N-1D20 limit switch is a single-pole double-throw (SPDT) switch. It has a rated voltage of 6A 250VAC, a contact resistance of 50mΩ maximum, and a dielectric strength of 1,500VAC. The switch has a open/closed/closed contact making capability, allowing for various control, safety, and signal circuit applications.The working principle of the D4N-1D20 is based on the snap action principle: when the actuator moves a certain distance, it will cause the internal contacts to change state with a "snap" action. This action is due to a mechanical cam that is activated when pressure is applied to the actuator. The contact movement is transferred to the electrical circuit through a mechanical linkage which contacts the contacts on the switch.

Advantages and Uses:

The main advantages of using the D4N-1D20 switch include its high-speed operation and long life expectancy. The switch has a quick response time of 10ms and is highly reliable with a life expectancy of 10,000,000 cycles, making it suitable for applications that require long life reliable operation.The D4N-1D20 is suitable for a wide range of applications, including automotive, homes, machine tool safety, process control and security systems. The switch can be used in electrical and pneumatic circuits to control, limit, and switch the direction of a signal. It can also be used in emergency stop, machine protective equipment, and other hazardous circuits to provide over travel protection.

Conclusion:

The D4N-1D20 is a type of limit switch that offers a wide range of applications and is based on the snap action principle. This switch features a long life expectancy and fast response times, making it a suitable switch for various applications. Its reliable operation can be used in a variety of industries, such as automotive, homes, machine tool safety, process control and security systems.