TR14D3NN

Time Delay Relays (TR14D3NN) are essentially electric actuators which are actuated at different intervals. People use them to switch on, off, or control other items like motors, lights or pumps. They offer a convenient way to precisely control the operation of a given system such as a production line or a home automation system.

Introduction to TR14D3NN

TR14D3NN are time delay relays that offer a wide range of applications. They provide a secure push-pull permanent magnet latching option for time delay measuring which can be programmed to the specific desired time interval. They come in a range of power ratings and can be adapted with various input signals making them suitable for most applications.

Application Fields

Time delay relays like TR14D3NN can be used in a variety of sectors, from manufacturing and engineering to automotive and electrical. Typically, they’re used to delay the start-up of powered machines or to schedule production time and downtime. By providing failsafe operation even in harsh environments, the relays can prevent malfunctioning of machinery due to control systems failing to recognize the correct signal or to operators making mistakes during situations of high load.

Automotive industry The relays are increasingly being used for automotive applications such as in car alarms and when power windows fail to close. By using the time delay relay, the car alarm system will be activated if the door is opened again within the set time interval. In this way, the car alarm is mostly triggered by someone trying to enter the car, and not by a gust of wind, dog, or jogger.

Industrial control In industrial control, time delay relays are used to control the starting, stopping, and sequencing of equipment used in industrial processes. This could be a conveyor belt, a pump, or a production line motor. They can also be used in combination with safety relays to provide multiple levels of protection in hazardous environments and to improve the accuracy and reliability of factory machinery.

Working Principle

The working principle of a TR14D3NN time delay relay is based on the principal of electromagnetic induction. Electricity is passed through a coil, and this creates a current that magnetizes the relay’s core. This opens or closes the contacts of the relay. When the current runs out, the magnetism will be reduced, and the contacts will then reopen. The TR14D3NN also includes a second coil, a rectifier, and a capacitor.

The rectifier takes the voltage and converts it from AC to DC, the voltage then charges the capacitor, which stores the energy. The second coil then creates a magnetic field that pulls the contact on the relay together, thus switching on the relay. The capacitor will discharge until the current runs out, at which point, the contact on the relay will open and the circuit will then be broken.

Conclusion

Time delay relays like TR14D3NN offer a wide range of applications in different sectors due to their flexibility and precision. The working principle of time delay relays is based on the principal of electromagnetic induction, where electricity is passed through a coil to create a current that magnetizes the relay core. This opens or closes the contacts of the relay, providing a failsafe operation even in harsh environments.