Electrical repairs can be daunting, but changing a double-pull throw 20 amp circuit breaker is a relatively simple task that can be accomplished with the right tools and safety precautions. Whether you’re experiencing electrical problems or simply want to upgrade your electrical system, this guide will provide you with step-by-step instructions on how to safely and effectively change a 20 amp double-pull throw circuit breaker.
Before you begin, it’s crucial to ensure your safety and prevent any electrical hazards. Turn off the main power supply to the panel and verify that the power is off at the breaker you’re working on using a non-contact voltage tester. Gather the necessary tools, including a flat-head screwdriver, needle-nose pliers, and a new circuit breaker of the same amperage and type. Remember, working with electricity can be dangerous. If you’re not comfortable performing electrical work, it’s always advisable to consult a qualified electrician for assistance.
With the power safely turned off and the necessary tools in hand, you’re ready to proceed with changing the circuit breaker. Carefully follow the steps outlined in this guide, paying close attention to the safety precautions. Once you’ve successfully replaced the circuit breaker, turn the main power back on and test the circuit to ensure it’s functioning correctly. By following these instructions, you can confidently change a 20 amp double-pull throw circuit breaker, ensuring the safety and reliability of your electrical system.
Locating and Removing the Old Breaker
Before attempting any electrical work, ensure that the power to the circuit has been shut off at the main electrical panel. Once the power has been disconnected, follow these steps to locate and remove the old circuit breaker:
1. Identifying the Breaker
Locate the electrical panel, which is typically found in a basement, garage, or utility room. The panel will have multiple rows of circuit breakers, each corresponding to a different circuit in the home. Identify the circuit breaker that controls the outlet or appliance you want to work on. The breaker will be in the “Off” position.
2. Removing the Front Cover
Locate the small latch or handle on the front of the electrical panel. This latch keeps the panel cover in place. Carefully lift the latch or handle and remove the front cover of the panel.
3. Locating the Correct Breaker
Once the front cover is removed, you will see several rows of circuit breakers. Each breaker will have a label indicating the circuit it controls. Find the breaker that corresponds to the outlet or appliance you want to work on.
4. Removing the Breaker
Carefully grasp the breaker by the plastic handle or tab at the top. Do not touch the metal contacts on the sides of the breaker. Slowly pull the breaker straight out of the panel.
5. Troubleshooting Stuck or Corrupted Breakers
If the breaker is stuck or cannot be easily removed, there may be an underlying issue. Here are some troubleshooting tips:
- **Check for Debris:** Inspect the breaker and the panel for any debris or obstructions that may be hindering its removal. Remove any debris carefully using a non-metallic tool.
- **Try Again:** If there is no visible debris, try gently rocking the breaker back and forth while pulling it out. This may help to loosen any corrosion or dirt that might be preventing its removal.
- **Check for Overheating:** If the breaker is hot to the touch or discolored, it may be overheated. In this case, do not attempt to remove it. Turn off the power at the main panel and contact an electrician for assistance.
- **Examine Wiring:** Inspect the wiring connected to the breaker. Ensure that the wires are properly connected and not damaged. If you notice any loose or damaged wires, do not attempt to remove the breaker. Contact an electrician for repair.
- **Replace with New Breaker:** If you have tried all the troubleshooting steps above and the breaker is still stuck or not functioning properly, it is best to replace it with a new breaker of the same amperage and type.
Testing the New Breaker
Once the new breaker is installed, it’s crucial to test it to ensure it’s functioning correctly. This involves the following steps:
1. Check the Panel
Before flipping the new breaker to the “ON” position, double-check that the main breaker is in the “OFF” position. This ensures the circuit is isolated during testing.
2. Verify the Circuits
Identify the circuits connected to the new breaker using the circuit directory or panel labeling. Make sure all devices and appliances on those circuits are turned off.
3. Turn on the Main Breaker
Flip the main breaker back to the “ON” position to energize the circuit panel.
4. Test One Circuit at a Time
Flip the new breaker to the “ON” position. If any devices or appliances on the first circuit turn on, the breaker is working correctly.
5. Repeat for Other Circuits
Repeat steps 4 for each circuit connected to the new breaker. If all circuits are operating as expected, you can leave the new breaker in the “ON” position.
6. Monitor Over time
Keep an eye on the new breaker for a few days or weeks to ensure it trips appropriately when an excessive amount of current flows through the circuit.
7. Check for Heat
If you notice any unusual heat coming from the new breaker or the panel, turn off the main breaker immediately and call a qualified electrician for further inspection.
8. Troubleshooting
If the new breaker trips without an apparent overload, there may be an underlying issue with the circuit or the breaker itself. Contact an electrician for troubleshooting and repair.
9. Tips for Safe Testing
- Always wear appropriate safety gear, including gloves and safety glasses.
- Use a non-conductive tool to operate the breakers.
- Never touch exposed electrical components.
- If you’re not comfortable with electrical work, do not attempt to test or repair the breaker.
10. Conclusion
Testing the new breaker ensures that it’s working properly and protects your electrical system from overloads. By following these steps and adhering to safety precautions, you can ensure the safety and reliability of your electrical system.
Safety Precautions for Breaker Replacement
1. Turn Off the Main Power
Before beginning any electrical work, it is crucial to isolate the circuit by switching off the corresponding breaker at the main electrical panel. This ensures there is no live current flowing through the circuit, minimizing the risk of electric shock.
2. Verify the Absence of Power
After turning off the breaker, use a non-contact voltage tester or multimeter to confirm that there is no voltage present in the circuit. This step is essential to avoid potential injury from residual electricity.
3. Wear Protective Gear
Wear appropriate personal protective equipment (PPE) such as insulated gloves, safety glasses, and sturdy work shoes. This gear will help protect you from any hazards during the replacement process.
4. Have a Fire Extinguisher Nearby
Keep a fire extinguisher readily accessible in case of any unexpected electrical sparks or ignitions. Electrical work can occasionally cause electrical fires, and having a fire extinguisher on hand allows you to respond quickly and effectively to any emergencies.
5. Label the Breaker Before Removal
Before removing the old breaker, affix a label to it indicating its location and function. This simple step helps ensure that the new breaker is installed in the correct position and avoids confusion later on.
6. Avoid Touching Bare Wires
When handling the wires connected to the breaker, avoid touching any exposed conductors. Use insulated wire strippers to modify wires safely and wear gloves to prevent accidental contact with live wires.
7. Ensure Proper Wire Connections
Securely tighten the wire connections to the new breaker using a screwdriver or torque wrench. Loose connections can cause overheating and pose a potential fire hazard. Follow the manufacturer’s instructions for proper torque specifications.
8. Install the Breaker Properly
Insert the new breaker into the electrical panel and fully engage it until it securely snaps into place. Partially installed breakers can create loose connections and pose safety risks.
9. Turn On the Power Gradually
After completing the replacement, gradually restore power to the circuit. Turn on the main breaker first and then switch on the individual circuit breaker. This approach allows you to detect any potential problems or misconnections.
10. Verify Proper Operation
Once the power is restored, test the functionality of the new breaker by turning on and off the lights or appliances connected to the circuit. This helps ensure the breaker is operating correctly and that the electrical system is functioning as intended.
11. Troubleshooting Common Breaker Problems
If you encounter any issues after replacing a breaker, consult the following table for potential causes and troubleshooting steps:
| Problem | Possible Cause | Troubleshooting Steps |
|---|---|---|
| Breaker Trips Frequently | Overloaded circuit, short circuit, ground fault | Check for excessive power consumption, inspect wiring for damage, consult an electrician |
| Breaker Does Not Trip When Overloaded | Faulty breaker, loose connections | Replace the breaker, tighten wire connections, inspect for any damage |
| Breaker Does Not Turn On | Tripped breaker, loose connections, faulty wiring | Reset the breaker, check wire connections, consult an electrician |
| Sparking or Arcing Inside Breaker | Loose connections, damaged breaker | Tighten wire connections, replace the breaker, consult an electrician |
How To Change Double Pull Throw 20 Amp Circuit Breaker
A double pull throw 20 amp circuit breaker is a type of electrical switch that is used to protect electrical circuits from overcurrent. When too much current flows through a circuit, the circuit breaker will trip and open the circuit, preventing damage to the electrical devices in the circuit. To change a double pull throw 20 amp circuit breaker, follow these steps:
- Turn off the power to the circuit at the main electrical panel.
- Remove the cover plate from the circuit breaker panel.
- Locate the double pull throw 20 amp circuit breaker that you want to change.
- Pull the circuit breaker out of the panel.
- Disconnect the wires from the old circuit breaker.
- Connect the wires to the new circuit breaker.
- Push the new circuit breaker into the panel.
- Replace the cover plate on the circuit breaker panel.
- Turn on the power to the circuit at the main electrical panel.
People Also Ask
What is a double pull throw circuit breaker?
A double pull throw circuit breaker is a type of electrical switch that is used to protect electrical circuits from overcurrent. When too much current flows through a circuit, the circuit breaker will trip and open the circuit, preventing damage to the electrical devices in the circuit.
How do I know if my circuit breaker is bad?
There are a few signs that may indicate that your circuit breaker is bad, including:
- The circuit breaker is tripped frequently.
- The circuit breaker is hot to the touch.
- The circuit breaker is making a buzzing or humming noise.
- The circuit breaker is not working properly.
How do I reset a circuit breaker?
To reset a circuit breaker, follow these steps:
- Turn off the power to the circuit at the main electrical panel.
- Locate the circuit breaker that is tripped.
- Flip the circuit breaker to the “off” position.
- Flip the circuit breaker to the “on” position.
