When it comes to wiring a 3 pin LED rocker switch, many individuals may find the process somewhat intimidating. However, it is essential to know how to do this, especially if you own a vehicle or other electrical equipment that requires such switches for operation. Here, we will discuss everything you need to know about this process, including a detailed wiring diagram, tables, and frequently asked questions to ensure that you have all the information you need.
What is a 3 Pin LED Rocker Switch?
Before delving into the wiring diagram, it is essential to understand what a 3 pin LED rocker switch is. A rocker switch is a device that is used to switch on or off the power supply to a specific electrical component. It features an actuator that is manipulated by pressing one end of the switch. In particular, a 3 pin LED rocker switch has three connection pins – one for the power supply, one for the load, and the third one for the LED light indicator.
What Does Each Pin Represent?
While the three pins on a 3 pin LED rocker switch are essential, you need to know what each represents to undertake proper wiring. Here is a breakdown of what each pin represents:
| Pin | Description |
|---|---|
| Pin 1 | This is the power supply pin, which is the 12 volts supply that comes from the vehicle’s battery or electrical system. |
| Pin 2 | This is the load pin that carries the electric current to the device that the switch controls. |
| Pin 3 | This is the LED light indicator pin that glows when the switch is on. |
Components Required for Wiring a 3 Pin LED Rocker Switch
Before delving into the wiring diagram, it is essential to ensure that you have all the components required to wire the 3 pin LED rocker switch. Here are the components you’ll need:
- 3 pin LED rocker switch
- 12-volt power supply
- 12-volt LED
- A load- this is an electrical device that the switch will control
- Wire strippers
- Electrical tape
- Wires of the appropriate gauge
Wiring Diagram and Step-by-Step Guide
The following is a step-by-step guide on how to wire a 3 pin LED rocker switch:
Step 1: Disconnect the Power Supply
Before handling any electrical wires or connections, it is essential to disconnect the power supply to prevent any accidents or damage.
Step 2: Prepare the Wires
Using wire strippers, strip about 1/4 inch of insulation off both ends of each wire.
Step 3: Connect the Load
Connect the wire to the load, ensuring that you use the appropriately sized wire gauge for the load. The wire will carry the electric current to the device or component that the switch controls.
Step 4: Connect the Power Supply
Connect a wire from the power supply to pin 1 of the switch.
Step 5: Connect the Ground Wire
Connect the ground wire from the power supply to the load.
Step 6: Connect the LED Indicator
Connect the LED to pin 3 of the switch.
Step 7: Wrap the Connections
Wrap each connection with electrical tape to cover and shield them from dirt, moisture, etc.
Frequently Asked Questions
Can I Use the Same Gauge Wire for Both the Load and Power Supply?
No, you cannot use the same wire gauge for both the load and power supply. The load requires a thicker wire, while the power supply requires a thinner wire gauge.
What if I Don’t Have Electrical Tape on Hand?
If you don’t have electrical tape on hand, you can use heat shrink tubing.
What Happens If I Connect the LED Indicator to the Wrong Pin?
If you connect the LED indicator to the wrong pin, it won’t light up when the switch is flipped on.
Is it Safe to Handle Electrical Wires Without Disconnecting the Power Supply?
No, it is not safe to handle electrical wires without disconnecting the power supply. Always turn off the power source before handling any electrical wires.
How Do I Choose the Appropriate Wire Gauge?
Choose the appropriate wire gauge based on the load’s amperage and voltage rating. The chart below shows the wire gauge to use based on the amperage:
| Amperage | Wire Gauge |
|---|---|
| 0-2.0A | 22 gauge |
| 2.0-3.5A | 20 gauge |
| 3.5-5.5A | 18 gauge |
| 5.5-8.0A | 16 gauge |
| 8.0-11.0A | 14 gauge |
| 11.0-15.0A | 12 gauge |
Conclusion
Wiring a 3 pin LED rocker switch may seem daunting, but with the right tools, components, and guide, it is a straightforward procedure. Remember to disconnect the power supply before starting the process, choose the appropriate wire gauge based on the load’s amperage, and wrap all connections with electrical tape or heat shrink tubing to ensure the long-term durability of your wiring. By following this guide, you can confidently wire a 3 pin LED rocker switch and efficiently operate electrical devices or components that require such switches.
