Pir Motion Sensor Light Wiring Diagram

Pir motion sensor light is a type of security light that turns on automatically when it detects motion within its range. It is commonly used to deter intruders and improve home security. If you are planning to install a pir motion sensor light, it is important to understand how to wire it correctly. In this article, we will discuss the pir motion sensor light wiring diagram in detail.

What is a Pir Motion Sensor Light?

A Pir motion sensor light is an electronic device that uses infrared technology to detect motion. It is designed to be installed outside the house, typically on the walls or ceilings, and activates when it senses movement within its coverage area. Pir motion sensor lights contain a light sensor that detects ambient light levels and turns the light on only when it is dark. The duration the light stays on is adjustable, but usually lasts between 30 seconds and 5 minutes.

How Does a Pir Motion Sensor Light Work?

A Pir motion sensor light works by detecting the heat pattern emitted by the human body. When a person moves within the detection range of the sensor, the heat pattern changes and the motion sensor light turns on. The detection range of a typical pir motion sensor light is around 10-12 meters, depending on the model, and can cover a wide angle of up to 180 degrees.

The sensitivity of the sensor can also be adjusted using a screw on the back of the device. By turning the screw clockwise, the sensitivity will increase and the motion sensor light will detect smaller movements. Turning the screw counter-clockwise will decrease the sensitivity, making the sensor less sensitive to small movements.

Why Install a Pir Motion Sensor Light?

There are many reasons to install a pir motion sensor light, including:

  • Increased home security and safety by illuminating dark areas around the house, making it harder for intruders to approach unnoticed
  • Energy savings by only turning on the light when it is needed, reducing electricity bills
  • Convenience by eliminating the need to manually turn the light on and off
  • Improved visibility and safety for outdoor activities such as barbecues or sports
  • Ease of installation and low maintenance costs

Pir Motion Sensor Light Wiring Diagram

Before starting the installation process, it is important to have the necessary tools and equipment, including:

  • Pir motion sensor light
  • Wire strippers
  • Screwdriver
  • Electrical tape
  • Wire connectors
  • Mounting screws

The wiring diagram for a pir motion sensor light is as follows:

Wire Color Description
Brown Live wire (L or L1)
Blue Neutral wire (N or N1)
Yellow/Green Earth wire (E or E1)
Red Switched live wire (L2)

Step-by-Step Installation Guide

Now that you have the necessary tools and equipment, you can proceed with the installation process. Follow the step-by-step guide below:

  1. Switch off the power supply at the main circuit breaker to avoid electric shock.
  2. Choose a location for the pir motion sensor light that provides a clear view of the area you want to cover.
  3. Mark the position of the mounting screws on the wall or ceiling using a pencil.
  4. Drill pilot holes for the screws, then insert the mounting screws into the holes.
  5. Remove the cover of the pir motion sensor light by unscrewing the screws on the side of the device.
  6. Strip the insulation off the end of the wires using wire strippers.
  7. Connect the brown wire from the pir motion sensor light to the live wire (L or L1) in the junction box using a wire connector.
  8. Connect the blue wire from the pir motion sensor light to the neutral wire (N or N1) in the junction box using a wire connector.
  9. Connect the yellow/green wire from the pir motion sensor light to the earth wire (E or E1) in the junction box using a wire connector.
  10. Connect the red wire from the pir motion sensor light to the switched live wire (L2) in the junction box using a wire connector.
  11. Replace the cover of the pir motion sensor light and tighten the screws.
  12. Restore power supply at the main circuit breaker.

FAQ

Can a Pir Motion Sensor Light be Installed Inside the House?

Yes, a pir motion sensor light can be installed inside the house, but it is more commonly used outdoors for security and safety purposes. A pir motion sensor light installed inside the house can also be used for convenience, such as in hallways or staircases.

How Does a Pir Motion Sensor Light Distinguish Between Humans and Other Moving Objects?

A pir motion sensor light uses infrared technology to detect the heat pattern emitted by the human body. Other moving objects, such as pets or cars, do not emit the same heat pattern and are less likely to trigger the sensor.

What is the Maximum Range of a Pir Motion Sensor Light?

The maximum range of a pir motion sensor light depends on the model and can range from 5 meters to 20 meters or more. It is important to choose a model that matches the size of the area you want to cover.

Can I Adjust the Duration of the Light Stay On?

Yes, the duration of the light stay on can be adjusted, but it depends on the model of the pir motion sensor light. Some models have a fixed duration, while others have adjustable timers that can be set between 30 seconds and 5 minutes.

Do I Need to Hire an Electrician to Install a Pir Motion Sensor Light?

No, you do not need to hire an electrician to install a pir motion sensor light. The installation process is simple and can be done by anyone with basic electrical knowledge and tools. However, if you are unsure about any aspect of the installation process, it is recommended to seek professional help.

Conclusion

Installing a pir motion sensor light is an effective and easy way to improve home security and safety. By following the wiring diagram and guide outlined in this article, you can install a pir motion sensor light correctly and efficiently. Remember to always turn off the power supply at the main circuit breaker before starting the installation process and seek professional help if needed.