Electrical circuits are important components that make sure that your home’s power supply is regular and safe. However, these circuits also need regular maintenance, and if not replaced on time, they can pose a potential safety threat and even cause fires. For this reason, circuit breaker replacement is a necessary life skill that you must learn in order to save time and money. In this article, we are going to provide a step-by-step guide on how to replace a circuit breaker.
What is a circuit breaker?
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In simple words, a circuit breaker is like a safety device that breaks when there is an abnormal flow of current. It protects the home from potential fire hazards by interrupting the current flow and is an essential component of the electrical circuit.
How to replace circuit breaker?
Safety first
There are some safety measures that you should follow since you are dealing with electricity:
- Turning the power switch off is the first thing that you should do while starting the process of circuit breaker replacement.
- Wearing safety gloves and safety glasses is necessary.
Gather the things you need
Here’s a list of necessary equipment that you will need while replacing the old circuit breaker:
- Screwdriver
- Voltage tester
- New and good quality circuit breaker.
- Wire stripper/cutter
- Masking tape
- Pen or marker
Identify the damaged circuit breaker
The first step is to identify which circuit breaker is damaged. If it trips constantly or has broken wires, it probably needs replacement.
Test the voltage
Before starting with the replacement process, use a voltage tester to detect any current flow. Once you are sure that there is no current flowing, only then start with the process.
Remove the old circuit breaker
Now the next step is to unscrew the screws holding the panel cover and then remove it. Keep it aside, as you will need the panel cover later on.
Identify and disconnect the live wires
Live wires are red in colour, and you need to identify the wires that are connected to the circuit breaker that you are going to replace. To disconnect these wires, unscrew the screws and gently disconnect them. Once you disconnect, make sure you mark them so you don’t end up forgetting the terminal they have to be connected to.
Remove the circuit breaker
Once you disconnect the wires, you can gently remove the panel and keep it aside while you carry on with the replacement process.
New circuit breaker installation
Now, you can start installing the new circuit breaker, but make sure it matches the specifics of the previous one. It needs to have the same amperage rating and must be fit for the electrical panel.
Install the new breaker
Carefully fit the circuit breaker into the slot while making sure it is perfectly aligned.
Connect the wires
- Attach the wires to the correct terminals and tighten them with screws.
- Now you can put the panel cover in its place and secure it with the help of screws.
Testing the circuit breaker
After the successful circuit breaker replacement, turn on the power once again and make sure everything functions well. If it doesn’t, check if the wiring is done correctly and if the fault still persists after you have thoroughly followed all the steps, you should call a professional for help.
FAQs
How do I know if I need to replace the circuit breaker?
If it trips constantly and there are visible signs of wear and tear, you should probably install a new circuit breaker.
Is it safe to replace the old circuit breaker myself?
If you are someone who doesn’t have much experience working with electrical appliances, it is best to call a professional for help because a minor mistake can lead to major hazards.
Can’t I replace the circuit breaker with the power still on?
It is extremely risky and dangerous for you if you replace the circuit breaker without turning the power off.
Is it necessary to label the wires during replacement?
Although it is not necessary, labelling makes it easier for you to identify the wires and makes the replacement process convenient.
Can I use a different circuit breaker while replacing the old one?
No, you should always use a circuit breaker similar to the old one, which is suited for the electrical circuit.
What is the lifespan of a circuit breaker?
Circuit breakers typically have a lifespan of around 30 to 40 years. However, the actual duration may vary depending on factors such as their quality and the electrical events that occur in your building.
Why should you replace a circuit breaker?
Replacing an old, defective, or poorly performing circuit breaker is important because such issues can lead to circuit overheating and increase the risk of electric shocks, electrocution, power outages, and even house fires.
| Got any questions or point of view on our article? We would love to hear from you. Write to our Editor-in-Chief Jhumur Ghosh at jhumur.ghosh1@housing.com |
