Question about Circuit Breakers & Wiring Panels

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Circuit breaker thank you for your advice i actually already changed the 16 amp circuit breaker but the safety switch still turned off. I am in australia not usa but thank you for advising me I will try to find yet another electrician maybe now that christmas and new year are over they will be more willing to see the job through Ha!

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  • Stephen Evans May 11, 2010

    since you changed the safety switch, i would try to remove one outlet at a time and retry the switch each time. it may take alittle while if your not in a hurry. this may help isolate or find the problem before calling and spending more money again. just a suggestion, best of luck. Steve


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There might be a short circuit in your wring for that circuit.
You can unplug all your electrical items from that circuit.
See if the circuit still turn off.
If it does, it could be the wring or the equipment that is permanently wired in.
If not, you can plug in one item at a time, turn it on to determine which electrical item is defective.

Posted on Feb 02, 2009

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Keeps tripping breaker after using for an hour or so. I have already replaced gfi and breaker. Advice please.

Usually when a breaker trips it is either loose wire or the what ever is running uses too much current or is failing.

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How to change a 15 amp breaker in an existing breaker panel

First question what happened to blow the breaker they rarely just go bad...and If you do not understand how the panel works it is best to let a professional do it...saying that I will offer my no responsibility advice,,.first open the door panel and at the top you will see the LARGER master shut off switch that shuts all the power coming through the panel...make sure have something like a fan or lamp on where you can see it when turning the power off ONCE THE POWER IS KNOWN TO BE OFF,,,REMOVE THE INNER BREAKER PANEL COVER AND PULL OUT THE BAD ONE AND REPLACE WITH THE SAME AMP ONE replace the inner panel and push the new breaker to ON and turn the master switch to should have power to the lamp or fan etc. JUST MAJE SURE ALL POWER IS OFF ABD BE VERY CAREFUL..

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1 Answer

I am connecting a 1000w Cobra Power inverter to a deep cycle marine battery that will be used to run small appliances while camping. How do I properly connect the inline circut breaker for maximum safety?

The breaker goes in in series.

So, that means (for example) you remove the hot wire to the unit, from the positive battery power source, and hook this wire to one side of the breaker, then connect the other terminal to the positive battery power source.

This will stop current flow if anything over 40 amps happens on the line.

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Why is my 50 amp GFIC breaker tripping out? I have just installed a new hot tube.I had one there before(smaller 40 amp) so there was already #8 wire there.The new hot tub requires a 50 amp. #6 wire. I just...

There might be a few things here:

1) Big problem >> the #8 wire is a fire hazard connected to a 50Amp breaker

#8 is a 40 amp breaker
#6 is a 55 amp breaker
We put #6 on a 60 amp breaker
Are you saying you hooked the #8 wire to the new 50 amp breaker, and the hot tub called for #6 wire?

Upsize your wire and breaker to meet code

2) After putting the correct wire and breaker, you can still have a short in the circuit somewhere
We used to set equipment out in the field in early morning >> the grass was wet >> our equipment was fine, but the tiniest short would cause the GFCI to trip

I don't know where the problem is without a thorough checkout of every possible grounded surface. You need a good multi-meter

3) You better get an electrician over there to have a look before the place burns down or somebody wakes up dead in the hot water.

If I sound a bit scary here, it's because something doesn't sound right with your installation.

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Our circuit breakers keep tripping. The house is only 12 months old and our electrician says the builder installed Cutler Hammer Combination type AFCI is the problem. Is there a problem with these being...

They can be defective, but usually not. It is usually something that is plugged in that will not operate on the arc fault circuit. Brush type motors are bad as they are actually arcing at times. Unplug all devices, and try to find the culprit. These are for your safety, and once you find the problem devices you should be fine.

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How to hook up single pole shunt tip breaker in panel

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1 Answer

Circuit Breaker

you have 2 circuits that feed the garage , not a problem , the one that you stated tripped often is the one we are concerned with . now do you remember which one that was , if so we need to start there . the first thing to determine is the load on the circuit large enough to to justify tripping of the breaker , breakers tripping is not always an indication of a problem it simply means it is doing its job sometimes . To determine the load turn on all the devices normally on in the garage and get or borrow a amp probe a wrap around is the easiest to use open the breaker panel that feeds the garage and wrap the amp probe around the wire leaving the panel that feeds the circuit to the garage that is the one that trips see if the load is close to the rating on the breaker , if it is then the breaker is doing its job and the only solution it to split the load . now if the load needs to be split then don't forget you said you had two circuits feeding the garage so you might be able to divide the load more evenly between the two you already have before you have to run additional circuits , tripping of breakers is not always a bab thing in most cases in my 40 years of being an electrician it is a case of them doing there job and the load needs to be more evenly divided if this does not help let me know and we will dig deeper

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