Molly Ayala
Knowing how to turn off the electricity supply to your home is an important safety practice. This can be useful in emergencies, such as a natural disaster, or when completing electrical DIY projects. The circuit breaker box, or fuse box, controls the electricity coming into your home. It is usually located where the electrical power lines enter the house and is often inside a “service conduit” that leads to the electrical meter and the main panel. Inside the circuit breaker box, you will find rows of individual circuit breakers and a main breaker at the top. To turn off the electricity supply to your entire house, locate the main breaker and flip it to the off position. However, it is recommended to only shut off the individual circuit breaker that serves the problem circuit unless it is an emergency, as this will allow the rest of your home to remain powered.
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What You'll Learn
How to turn off power at the fuse box
If you're looking to turn off the power at the fuse box, there are a few things you should know. Firstly, if you are not a trained electrician, it is strongly advised to call an electrician to do the work for you.
Now, to locate your fuse box, or your home's electrical service panel, look for a large grey metal box attached to one of the walls in or around your home. It is usually placed in out-of-the-way rooms or areas. Once you've located the box, check that the floor around it is dry before opening the door.
Inside the box, you'll see rows of individual circuit breakers that look like toggle switches, and a main breaker at the top. The breakers control different circuits in your house, and these should be labelled. If you only want to turn off power to a specific area, identify the correct circuit breaker and flip the lever to the "off" position. You should hear an audible click, and a red or orange tab may appear in a small window on the breaker.
If you want to turn off the power to the entire house, you will need to locate the main breaker. It is usually a double-width switch located at the top of the service panel. Push the switch into the "off" position to shut off the power. Alternatively, if your home has a fuse box, you can partially shut off the power by unscrewing and removing a fuse. Be cautious, as the metal parts may be hot.
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Resetting a tripped circuit breaker
To reset a tripped circuit breaker, first, turn off all devices on the electrical circuit, including the device that may have caused the trip. This could be a device such as a microwave, hairdryer, or air conditioner. The electric service panel, or circuit breaker board, is usually a metal box with a door, often located in the garage, closet, basement, or hallway. Once you've located the service panel, open the door.
Inside the panel, you will see rows of individual circuit breakers, which look like toggle switches, and a main breaker on top. The handle of a tripped breaker will be in the middle position, not left or right, and will have a soft or springy feeling when pressed. Flip the circuit breaker handle to its OFF position, towards the outer edge of the service panel. Double-pole breakers are double-wide breakers with wide handles, often used for dryer or oven circuits. Both sides of these breakers operate as one.
After turning off the tripped breaker, wait a moment to see if the breaker stays in the ON position. If it does, the circuit breaker has been reset, and power should be restored. If the breaker doesn't stay on, there may be a serious wiring problem, and a qualified electrician should be contacted.
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When to call an electrician
In most cases, it is safe to turn off the main breaker to cut off power to your entire house. However, there are certain instances where it is best to call a qualified electrician to handle the situation.
Firstly, if you are not a trained electrician, it is strongly advised that you do not work on anything electrical before the main breaker. Working with electricity can be dangerous, and without the breaker, there is a risk of electrocution if a mistake is made.
Secondly, if you are experiencing issues with a tripped circuit breaker, it is recommended to call an electrician. Circuit breakers can trip due to various issues, such as loose wires, short circuits, or ground faults. Resetting the breaker may only be a temporary solution, as the underlying issue could cause it to trip again. An electrician can identify and resolve the root cause of the problem.
Additionally, for major electrical projects, such as running new wiring throughout your house or installing a new appliance, consulting an electrician is advisable. They can guide you through the process, ensuring that the work is done safely and correctly. This may include coordinating with the utility company to disconnect the meter during the work.
Lastly, if your home's electrical service panel appears damaged or has loose wires, it is important to call an electrician. They can safely address any issues and make the necessary repairs. It is always better to err on the side of caution when dealing with electricity to ensure your safety and prevent potential hazards.
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Turning off power to individual rooms
To turn off the power to an individual room, you must first locate your home's electrical service panel. This is typically a large grey metal box attached to one of the walls in or around your home. It may be located in a garage, basement, utility room, pantry, or covered area of your yard.
Once you have located the service panel, open the door to reveal the breakers. These will typically be in two columns, with each breaker controlling a different room or area of the house. If your home has a fuse box instead of a circuit breaker, you will need to unscrew the fuses to turn the power off and on.
If you are unsure which breaker controls the room you want to turn off, you can turn off all the breakers at once by flipping the main breaker switch to the 'off' position. This will cut power to your entire house. Alternatively, you can call your local electrician to use a circuit breaker finder to locate the correct switch.
If you are undertaking a home repair or DIY project, it is always safest to turn off the power at the source, rather than just unplugging things. However, if you want to continue having electricity in the rest of the house, it is best to only turn off the power to the individual circuit in the area you will be working in.
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What to do in an emergency
In an emergency, it may be necessary to turn off the electricity at the mains. Here is a step-by-step guide on what to do:
First, locate your breaker box, also known as a fuse box or circuit breaker box. This is usually located near where the electrical power lines enter the house, often through a pipe-like "service conduit" leading to the electrical meter and the main panel. The circuit breaker box is grey and contains rows of black circuits and circuit switches.
Once you have located the breaker box, open the door. Before opening, check that the floor around you is dry. Inside, you will see rows of individual circuit breakers, which look like toggle switches, and a larger main breaker at the top.
If you are experiencing an issue with a specific circuit, such as a sparking switch or outlet, you should first try to identify and turn off the individual circuit breaker controlling that circuit. These are usually labelled, and you can turn them off by flipping the lever to the "off" position. You may hear an audible click, and you may see a red or orange tab in a small window on the breaker.
However, in an extreme emergency, such as a natural disaster or if you are installing new wiring, you may need to turn off the main breaker to cut off all electricity to the house. This is usually a double-width switch located at the top of the service panel. Push or flip the switch into the off position.
It is important to note that turning off the main breaker can cause a power surge, especially in older homes with old wiring. If you have time, it is best to turn off all the individual breakers first before turning off the main breaker.
If you are unsure about what to do, it is always best to call a qualified electrician to assist you.
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Frequently asked questions
You need to locate the breaker box, which is usually found near where the electrical power lines enter the house. Once you've found it, open the door to the fuses or breakers inside. You will then see rows of individual circuit breakers and a main breaker on top. To turn off the electricity to the entire house, flip the main breaker off.
Identify the circuit breaker controlling the circuit you want to turn off. These are usually labelled. Turn off the circuit by flipping the toggle to the OFF position.
If you are not a trained electrician, you should never work on anything electrical before the main breaker. Call an electrician to help you with this.
If the wiring inside your electrical panel is exposed, you should call an electrician to have your panel made safe. Touching the wrong wire or bare metal can result in electrocution.
