Turn off the main breaker and test for power before touching anything
Removing a circuit breaker from a panel box is a task you can do yourself, but it requires you to work safely around live electrical parts. The first step is to switch off the main breaker — the large switch at the top or bottom of your panel that controls power to the entire house. Flip it to the off position.
After the main breaker is off, use a non-contact voltage tester to confirm that power is actually gone. Touch the tester to the breaker you plan to remove and to the metal frame of the panel box itself. If the tester does not light up or beep, power is off. If it does, stop and call an electrician — something is wrong with your main breaker.
Even with the main breaker off, the utility lines that feed into your panel are still live. Do not touch the large wires or the metal parts they connect to. Work only on the breakers and wires that branch out from them into your home.
Key Takeaways
- Switch off the main breaker and use a non-contact voltage tester to confirm power is gone before you touch any breaker.
- The utility lines entering your panel stay live even when the main breaker is off, so keep your hands away from them.
- Most breakers slide out by pushing down and pulling toward you, but some brands require you to push up or use a release tab.
- Disconnect the wire attached to the breaker before you remove it, and label the wire so you know where it goes when you reinstall.
- If you are uncomfortable working inside the panel or if the breaker does not slide out easily, hire an electrician rather than force it.
Locate the breaker and disconnect its wire
Find the breaker you want to remove by looking at the label on the inside of your panel door. The label shows which breaker controls which room or circuit. Once you have found it, look at the wire attached to the back of the breaker — this is the wire that carries power out to your home. You will need to disconnect this wire before you can remove the breaker.
Use a screwdriver to loosen the terminal screw on the back of the breaker. This screw holds the wire in place. Turn it counterclockwise until the wire comes free. Pull the wire out gently and set it aside. If the wire is long enough, you can tape it to the inside of the panel box so it does not fall into the space where the breaker was.
Before you remove the breaker, take a photo of the wire and the breaker location, or write down which wire goes to which breaker. You will need this information if you ever reinstall the breaker or install a new one in its place.
Slide the breaker out of the panel
Most breakers are held in place by a clip on one side. To remove the breaker, push down on the clip side while pulling the breaker toward you. The breaker should slide out smoothly. If it does not move, stop and check whether your breaker type uses a different release method — some brands require you to push up instead of down, and others have a small tab you must press.
If the breaker still will not budge, do not force it. Forcing a stuck breaker can damage the clip or the breaker itself, and it can also damage the bus bar inside the panel — the metal rail that the breaker clips onto. If you cannot remove it easily, call an electrician. A stuck breaker usually means the clip is bent or the breaker is damaged, and an electrician has the tools to handle it safely.
Once the breaker slides out, set it on a clean, dry surface. Do not leave it sitting on a metal workbench or near other metal objects, because the terminal on the back of the breaker is still conductive and could cause a short if it touches something metal.
What to do with the breaker after removal
If you are removing the breaker because it is faulty or because you no longer need that circuit, you have a few options. A breaker that has tripped repeatedly or will not reset is usually bad and should be replaced with a new one of the same brand and amperage. Do not try to reuse a faulty breaker.
If the breaker is still working but you straightforward do not need the circuit anymore, you can leave the space empty or install a blank cover plate. Many electricians leave the breaker in place but turn it off and label it as unused, rather than removing it entirely. This keeps the panel organized and makes it easier to reactivate the circuit later if needed.
Do not throw a working breaker in the trash. Some utility companies or recycling centers accept old breakers, and some electricians will take them off your hands. Call your local utility company or a scrap metal recycler to ask about options in your area.
Reinstalling a breaker or installing a new one
If you are removing a breaker to replace it with a new one, the new breaker must be the same brand and amperage as the old one. Mixing brands can cause problems because the clips and dimensions vary slightly between manufacturers. Check the label on your old breaker and buy an exact replacement.
To install the new breaker, slide it into the empty space at an angle, with the terminal end going in first. Push down on the clip side until the breaker snaps into place. You should hear or feel a click. Then reconnect the wire to the terminal screw on the back of the breaker and tighten the screw firmly.
Before you turn the main breaker back on, double-check that all wires are connected, that no wires are touching each other, and that the breaker is fully seated in the clip. Then close the panel door and turn the main breaker back on. The new breaker should now be live and ready to protect that circuit.
When to call an electrician instead
Some situations call for professional help. If the breaker will not slide out easily, if you are not sure which wire goes to which breaker, if you smell burning or see scorch marks inside the panel, or if the main breaker will not turn off, stop and call an electrician. These are signs of a problem that could be dangerous if you continue.
You should also call an electrician if you need to add a new circuit rather than replace an existing one. Adding a circuit requires running a new wire from the breaker to the location where you want the outlet or light, and this work usually requires a permit and an inspection. An electrician can handle the whole job and make sure it meets local electrical code.
If you have an older panel with fuses instead of breakers, do not attempt to remove or replace anything yourself. Fuse panels work differently and carry different safety risks. Call an electrician for any work on a fuse panel.
Frequently Asked Questions
Can I remove a breaker while the main breaker is still on?
No. The main breaker must be off before you touch any breaker in the panel. Even if you turn off the individual breaker you want to remove, the panel itself is still live, and you could get a serious shock. Always switch off the main breaker first and test for power with a voltage tester.
What if I turn off the main breaker and the lights in my house stay on?
This should not happen. If lights or outlets still have power after you turn off the main breaker, your main breaker is not working correctly. Do not open the panel or touch any breakers. Call an electrician right away, because this is a safety hazard.
Do I need a permit to replace a breaker myself?
Permit requirements vary by location. Some cities allow homeowners to replace a breaker without a permit, while others require a licensed electrician to do any work inside the panel. Call your local building department or check their website to find out what is required in your area before you start.
What amperage breaker do I need if I am replacing one?
The new breaker must match the old one exactly — same brand and same amperage. Look at the label on the breaker you are removing. It will show a number like 15, 20, 30, or 50, which is the amperage. Buy a replacement breaker with that same number from the same manufacturer.
Is it safe to work inside a panel box if I have turned off the main breaker?
It is safer than working with the main breaker on, but it is not completely safe. The utility lines feeding into the panel are still live. Keep your hands away from the large wires at the top of the panel and the metal parts they connect to. Work only on the breakers and the wires that branch out from them into your home.