A time-delay relay (TDR) is an electronic component that is used to delay switching on or off of a circuit for a predetermined period of time. This circuit is commonly used in many applications like lighting, heating, and cooling systems. In this article, we will discuss the wiring diagram of the time-delay relay in detail.
What is a Time Delay Relay?
A time-delay relay is an electronic device that is used to delay the switching on or off of a circuit. It can be programmed to delay the circuit for a specific time period like seconds or minutes by using a timer. This device is very useful in many applications where the timing of the circuit is critical.
There are two types of time delay relay:
- Off Delay Relay – The circuit is delayed to switch off after the power is removed.
- On Delay Relay – The circuit is delayed to switch on after the power is applied.
Wiring Diagram of a Time Delay Relay
The wiring diagram of a time delay relay is very simple. The device has three terminals:
- Power Terminal – This terminal is used to connect the power source to the device.
- Output Terminal – This terminal is used to connect the load to the device.
- Control Terminal – This terminal is used to connect the timer or control signal to the device.
The following table shows the wiring diagram of the time-delay relay:
| Terminal | Wire Color | Description |
|---|---|---|
| 1 | Black | Power Supply Connection |
| 2 | Red | Output Connection |
| 3 | Blue | Control Signal Connection |
How to Wire a Time Delay Relay?
The wiring of a time delay relay is very easy. All you need is to follow the steps below:
- Turn off the power supply of the circuit.
- Connect the black wire to the power supply terminal of the time delay relay.
- Connect the red wire to the output device or load.
- Connect the blue wire to the timer or control signal.
- Turn on the power supply of the circuit.
FAQ
What is the purpose of a time delay relay?
The purpose of a time delay relay is to delay the switching on or off of a circuit for a specific time period. This device is very useful in many applications where the timing of the circuit is critical.
What are the types of time delay relay?
The types of time delay relay are:
- Off Delay Relay – The circuit is delayed to switch off after the power is removed.
- On Delay Relay – The circuit is delayed to switch on after the power is applied.
How to wire a time delay relay?
You can wire a time delay relay by following the steps below:
- Turn off the power supply of the circuit.
- Connect the black wire to the power supply terminal of the time delay relay.
- Connect the red wire to the output device or load.
- Connect the blue wire to the timer or control signal.
- Turn on the power supply of the circuit.
What is the output terminal of a time delay relay?
The output terminal of a time delay relay is used to connect the load or the device that needs to be controlled by the relay.
What is the control terminal of a time delay relay?
The control terminal of a time delay relay is used to connect the timer or control signal to the device.
