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This is relatively easy if you are careful. However, you could kill yourself if you are not careful. Safety gear such as insulated rubber gloves, eye protection and rubber sole shoes all provide a margin of safety. Also have someone standing by to drag you away from a live circuit if you happen to get in trouble. Tie a rope to your belt for example. Now turn off breaker you are replacing. remove front panel of electric panel taking care not to touch anything inside panel. Once the panel is removed you expose live surfaces and wires. Make sure breaker is off. If in doubt check output with a volt meter. Put one hand behind your back and with a screwdriver in your other hand unscrew the screw holding in the black wire. Pull the black wire away from the breaker and make sure you don't touch it to any live black wires or the hot buss bar. Usually the breaker will pull out from the side away from the center of the electric panel. Usually there is a "c-shaped" clamp that clamps onto a retaining bar and another clamp on the hot buss bar. Lift breaker away from box. Insert new breaker and reconnect hot. Make sure breaker is off while re-inserting hot wire.

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14y ago
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14y ago

I'm assuming this is a typical breaker you would find in your home. Pull the breaker to the off position, then to the on position. When the breaker blows on overcurrent, it will go to somewhere between the off and on position and open the circuit. From this position, you cannot force it to close (on position) without first taking it completely to the off position.

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13y ago

every circuit breaker has a overload release powered by CTs. Normal range is between 70 % to 110% of CT primary rating. find out overload conditions & adjust this setting. any more doubts email powercare1994@gmail.com

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12y ago

If you know what caused the breaker to trip then remove it from the circuit. Then open panel door and locate the tripped breaker as the one that is no longer in the full ON position. Some have a colored flag that appears when tripped. Now move the toggle to the full OFF position and then to the full ON position.

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12y ago

Find the electric meter. Any homes built in the last 50 or so years SHOULD have a disconnect (breaker) as a part of the meter base. Just flip THAT breaker and it should turn off all of the power to the home.

In the event of an emergency, local fire departments will cut the security tab on the meter base and pull the meter, cutting all power to the house. WARNING!!! That's actually illegal and you can get in BIG difficulties, so pulling the electric meter had better be only in the case of a real emergency... Like the house is burning down.

If your home does NOT have a meter base with a shutoff, you should contact a local electrician and have your electric service updated.

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14y ago

About the only maintenance you can do for a circuit breaker is to "exercise" it, that is turn it OFF, then back ON several times slowly. This should be done about once a year.

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14y ago

You would move the handle of the breaker from the on position to the off position.

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Q: How would you turn off the main circuit breaker?
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How do you replace a 15 amp breaker in the circuit box?

The breaker will have a black wire connected to it. Turn off the main breaker and then disconnect that black wire from the breaker. The breaker will snap into the main bar. Remove the breaker and install the new one. Reconnect the black wire to the breaker and then install the cover and turn the main breaker back on.


Parking lights will not turn off is it a relay or circuit breaker?

It is a relay or switch problem. A circuit breaker or fuse won't keep a light on.


What would happen if a 240V breaker was on and someone attempted to turn on the clothes dryer?

Don't understand this question. If the breaker is on, then the dryer would function normally, if the breaker your are referring to is the one for the dryer. If the breaker is off then no function. A dryer runs on 220.


Why do you convert 120v circuits to 220v circuits?

You would need to change a circuits voltage if your adding a load that requires 220 when the present circuit supplies 120. If you need to do so it's pretty simple! First purchase a double pole breaker at the proper amp rating. Next find the breaker in the panel that supplies power to the circuit you wish to change to 220. Turn off the breaker and pull it out. Find the neutral for that circuit. Then double check and make sure it's the right neutral. Then check one more time. Now take the neutral and the hot wire for that circuit and connect them to the double pole breaker. install the breaker into the panel and turn it on. If you connected the right neutral you'll have 220 on that circuit. If you didn't you'll know because you'll trip the breaker.


How do you tell if someone is stealing your electricity?

Turn off your main circuit breaker (so that all of your power is off) then look at your meter. If the meter gauge is still spinning, it means electricity is being used somewhere between your meter and your breaker (BIG NO NO!!) And a sure sign that someone is stealing your electricity.

Related questions

How do you replace a 15 amp breaker in the circuit box?

The breaker will have a black wire connected to it. Turn off the main breaker and then disconnect that black wire from the breaker. The breaker will snap into the main bar. Remove the breaker and install the new one. Reconnect the black wire to the breaker and then install the cover and turn the main breaker back on.


Why tap in your house gives shock when it is touched or used?

Your water system is not grounded. Turn the main breaker in your distribution panel to off and ground the water system. If a "hot" wire has come into contact with the plumbing, when you turn the electrical panel main breaker back on a breaker will trip. This will give you the circuit that is at fault and a place to start looking for the short circuit.


What would you do if the circuit breaker started started heating?

Turn the power off and call an electrician.


Will turning off the main breaker turn off all the power to the circuit breaker box?

No. Power to all the circuit breakers will be cut off except for the Main power breaker. The Main power breaker (which supplies power to all other breakers and will say 100, or whatever your max breaker box power is, on it )will have power going to it all the time, unless power is turned off outside the house.


Parking lights will not turn off is it a relay or circuit breaker?

It is a relay or switch problem. A circuit breaker or fuse won't keep a light on.


What would happen if a 240V breaker was on and someone attempted to turn on the clothes dryer?

Don't understand this question. If the breaker is on, then the dryer would function normally, if the breaker your are referring to is the one for the dryer. If the breaker is off then no function. A dryer runs on 220.


How do you turn a 30 amp circuit into a 15 amp cicuit?

Replace the 30 Amp Breaker with a 15 Amp breaker.


Does a 1993 Suburban have a separate breaker for the turn signals apart from the flasher?

I'm not sure what you mean by "breaker". If you mean fuse, then yes, there is a turn signal fuse in the circuit.


What is circuit breaker and its type?

A circuit breaker(s) is what you will find inside your electrical box in your house the idea behind them is when a room in your house draws too many Amps the circuit breaker will turn off all the power to that room to re-engage them you simply switch it back on. There are many types of circuit breakers with different rattings like 15A or 100A, this tells you at what point they will 'break' the circuit and turn off the power.


How do you find out why a GFI won't reset if it tripped several times due to Christmas lights and rain but they are now unplugged and when the reset button is pushed it immediately trips?

If the outlet cover was held open by the lights it could be wet. A smal amount of water will cause a GFI to trip. A GFI is a device which makes certain that voltage is not draining away from the two wires, to some OTHER voltage drain, such as a human body or a wet circuit. if above not the answer go to your breaker box and find the breaker that controls that circuit. you will know when you have the right one when the breaker does nothing, not even trip it self. see what else is on that circuit {what else turns off when main breaker is tripped and unplug everything that is on that circuit then turn on the main breaker. try the reset with everything else off if it still trips then its the gfi itself. they go bad often on construction sites [my own personal experience] if it resets properly than one of the other things on that circuit is the culprit. replug or turn them on one at a time. the breaker will trip if its one of these. if not replace the breaker. pretty cheap at lowes or home depot. turn off main breaker when you replace it. lots of luck!!


Is it safe to turn on a 240 volt circuit after it has tripped the breaker?

It is safer to find out why the breaker tripped before the power is turned on. Turn off all equipment, then turn on the supply, then turn on each appliance one by one to find the culprit.


What should you do if someone have an electric shock?

Without touching the victim, remove them from the circuit. In the home, where the voltage is usually 240 volts or less, you can push them off with a wooden broom handle or pull them off with a rope. The moisture in those objects can turn them into conductors at higher voltages such as you might encounter in an industrial setting. The safest way to remove the victim from the circuit is to turn the power off at the circuit breaker panel or light switch. Go now and identify where your main breaker is. Don't forget that if you turn off the power at the main, your cordless phones probably won't work. Once the victim is out of the circuit, call emergency services and begin CPR.