For questions generally relating to safety devices used to automatically stop the flow of electric current in the event of a fault condition.

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7
votes
3answers
3k views

Is it ever safe to have 14 gauge wire anywhere on a circuit protected by a 30 amp breaker?

I was doing some work in an old house I recently moved into, and found that my dishwasher and garbage disposal (and some outlets near them) are on a 30 amp breaker. However, some of the electrical ...
0
votes
2answers
111 views

Circuit breaker + panel selection — make and breaker series?

Is there a compelling reason to choose one type/brand of breaker & panel (Eaton CH, Eaton BR, Square-D QO, Square-D HOM, Siemens, GE) over another when putting a new electrical panel and breakers ...
20
votes
4answers
3k views

Why would two circuit breakers be connected inside the service panel?

I was trying to locate the circuit breaker for an outlet in my garage and found a truly baffling setup. Two breakers control the same outlet (both plugs). After some head scratching, I opened the ...
1
vote
1answer
987 views

What size breaker and wire do I need to feed a panel for a tankless water heater?

I purchased a electric tankless water heater and I would like to know the following? The unit requires 3 separate 40 amp breakers, one for each line. I have 200 amp service. The subpanel will be ...
2
votes
1answer
542 views

Why does half the house go out when a single breaker trips?

The breaker box at my brother's house is well marked and balanced except when a breaker is tripped half the house goes out. I'm currently living on the third floor of his house. When I turned on a ...
0
votes
3answers
1k views

Why are the lights flickering when the a/c is on?

The lights flick on and off when the a/c is on and the sound of a/c is too noisy and look like it's going to blow. I already checked the connection if they have a short circuit. Did not found any ...
2
votes
2answers
389 views

Do I have to run new wire when replacing my electric oven?

I bought a new single electric wall oven to replace an old one in an old house. It says it requires 20 amp and 240 volts. The old one was running on a 10 amp breaker. The wire from the breaker to oven ...
4
votes
3answers
284 views

My breaker panel is in a sump closet, should I move it?

I just purchased a new home and I'm going to replace the breaker panel (it's full and I want expansion room). The panel is located directly above the sump pump in a small closet in the corner of the ...
1
vote
1answer
59 views

Identify fuse that is off/bad but not tripped

I have a set of outlets and an overhead light in the garage that are not powered. I believe I know the fuse they are under via simple labels and from some process of elimination. The fuse is not ...
1
vote
3answers
1k views

2 15 amp breakers to 1 30 amp

I have a wired garage that has 3 wire 10 gauge going in to it. In the panel this wire is hooked up to 2 individual 15 amp breakers. I want to know if i can put in a 30 amp breaker in that spot. The ...
10
votes
1answer
74k views

Why is my air conditioner tripping the circuit breaker?

Our air conditioner recently stopped blowing out cold air. When I went to check on it, I noticed that the outside unit wasn't coming on. We had had problems with ants in the contacter in the past, ...
1
vote
1answer
95 views

Is my breaker box aluminum compatible?

I have been advise to convert old aluminum branch wiring with AlumiConn connectors and maybe also in the breaker box, unless the circuit breaker is AL & CO compatible. How do I determine this? Can ...
2
votes
1answer
951 views

15 amp load trips 20 amp breaker instantanously

New construction wired by professional electrician, Montana USA. Dedicated circuit for a 14" chop saw with 10 ga. wire and a 20 amp breaker. Saw was used previously on a 15 amp circuit with no ...
2
votes
2answers
948 views

Where can I find information on slow blow breakers?

In a previous question, the comments mentioned slow blow circuit breakers. I have done a web search and went to Square-D's website(the maker of my current breakers) and came up empty. There is a lot ...
3
votes
5answers
1k views

Is this too many items on a 20 AMP Breaker?

I live in a 2 bedroom 2 bath duplex, where we have issue's with the light's flickering, often causing mini power surges, and at times kicking a breaker. One 20 ampere circuit supplies 3 ...
7
votes
2answers
578 views

What is the best short-term solution for fused neutrals?

I have inherited a house that has been in my wife's family since 1860. I do not know when it was electrified, but it seems to have skipped knob and tube. There is a lot of fabric-covered wire, and ...
2
votes
3answers
2k views

What model circuit breaker is this?

I live in an old 50 + year old house and it still has the original circuit breakers. I am trying to search for one that died, but don't know the model or even if they make these anymore. If any ...
2
votes
3answers
513 views

Can I replace the main breaker in an electrical panel with a smaller one?

I have an older 60amp fuse box in a rental property that is wired as a sub panel off my main 100amp service. I would like to upgrade to a new circuit breaker panel so tenants can not pull out the ...
2
votes
1answer
233 views

New install: What's causing a tripping arc fault breaker?

We remodeled our home and had all new electrical put it in to plan. For rough-in, the electrician put in regular breakers instead of arc fault breakers. Arc fault breakers are required by code now ...
10
votes
5answers
13k views

Why would there be a 50 amp plug on a 30 amp appliance?

I have an old conveyor dryer, which my office purchased used some time ago, just sitting in storage. The dryer is for silk screen t-shirts and has a large heating element and a variable speed conveyor ...
0
votes
1answer
174 views

How do I figure out what this 30amp 2 pole breaker is doing?

I have am looking for space in my circuit breaker panel to do an upgrade. There is a 30 amp dual pole breaker labeled "water heater". Our water heater was upgraded to a tankless about 6 years ago and ...
1
vote
2answers
492 views

Insulating near a breaker box

Hello: In remodeling my basement I have so far finished installing R-10 2" XPS insulation against my block walls. My question is: How close or how far away from the circuit breaker panel can I place ...
3
votes
2answers
392 views

Is it possible to replace a fusebox lever without replacing the whole box?

I'm pretty new to DIY stuff... but I'm selling my home soon and was wondering if it was possible for an electrician to fix just the part causing the lever to not come down in my garage's fusebox ...
1
vote
0answers
295 views

30amp power cord to 20amp breaker?

I am converting a cargo trailer into a camping trailer, including wiring it to have power from and RV hookup. The most common RV hookup is a 30amp. Since i don't really need the 30amp power, my plan ...
1
vote
1answer
1k views

How do I replace a GFCI breaker with a normal breaker?

I have a breaker on my panel that has 2 white wires and one black and a test button. I am changing to a breaker that has no white wires going to it just the black. Do I put both white wires to the bar ...
1
vote
1answer
857 views

GFCI Breaker - not tripped = outlets work, turn light switch on breaker trips, lights work but outlets do not

I had a kitchen remodel that went a bit bad with a contractor and his minions. The house was build in 1934 so has a two wire system with a 100A panel. As we remodel we are replacing 2 wire system ...
1
vote
2answers
2k views

How can I remove a stuck circuit breaker from the panel?

I went to replace my circuit breaker for my dryer because the dryer kept shutting off. I started checking around and discovered when you jiggle the breaker a little the dryer light flicker. I ...
2
votes
2answers
12k views

Why is half of my house without power with no flipped breakers? [duplicate]

The master bedroom and middle bedroom of my 3 bedroom mobile home is without power. None of the breakers have flipped. I even changed the breaker that controls that part of the house and my ceiling ...
-1
votes
1answer
452 views

How to identify circuit breaker to non-functioning built-in microwave oven?

I have a wall-mounted over-the-range microwave oven that is completely non-operational at the moment; from the user's point of view, it's as if it were unplugged, but it is. Unfortunately, access to ...
1
vote
1answer
877 views

Do I want a common trip or independent trip quad breaker?

I had a quad breaker that went bad. It had 30A outer pair for the dryer and 20A inner pair for my well pump. Both pairs were tied together so you could turn them on or off together - the mechanism ...
0
votes
1answer
13k views

20 amp breaker with 12 gauge and 14 gauge wire

I am looking at replacing a couple of old, porcelain style single bulb fixtures in my basement with some 4 lamp fluorescent fixtures. I am actually running new wire to the fluorescent fixtures from a ...
0
votes
3answers
416 views

Can I take the cover off my fusebox to attach an energy monitor?

I have bought an Energy Monitor to track our electricity usage (hard times...). I now need to put the sensor on one of the cables either next to the fusebox or the meter. Unfortunately I cannot ...
0
votes
2answers
904 views

Pretty big electric shock when touching my lamp

I just received a fairly large electric shock when trying to turn on the lamp on my nightstand while I was sitting in bed. When we purchased the lamp, it was 110v however we had it changed to 220v ...
1
vote
1answer
71 views

Remove power spike when restoring power

I've been experiencing interesting problem recently. When the power goes down, there is roughly 50:50 chance that a circuitbreaker for my plugs trips after the power comes back on. Flipping it back ...
4
votes
3answers
973 views

Should I replace ALL the fuses in plugs?

In certain countries (for example the UK), plugs have fuses in them. In most cases, this is a stand 13 A fuse. My question: If I know that a device (to which the plug is attached) won't draw even a ...
0
votes
2answers
527 views

What could be causing there to be no power at my ceiling fixture?

I installed a replacement chandelier, heard a pop which tripped breaker, reset the breaker the chandelier would not work. That breaker shares CAN lighting (has its own dimmer switch) with the ...
0
votes
3answers
1k views

On a true 60 amp 240 volt circuit will each side of the breaker carry more than 30 amps if required?

If my distribution panel on my boat is wired 240 v 60 amps max and there are many 120 v 15 a circuits, if one side of the 120 v panel starts to draw more than 30 a, will the breaker compensate by ...
2
votes
2answers
1k views

Use of combination CAFCI and GFCI breakers instead of recepticles

I am about to begin a project that will include one or two new circuit for outdoor lights and receptacles attached to the main building. I will probably installing a new home run line from the panel ...
3
votes
1answer
246 views

Does Sewage Ejector system need a dedicated circuit?

The sewage ejector system in our basement is on a GFCI outlet that is on the same circuit as the adjacent bathroom (fan, light and switch). Someone told me it needs a dedicated circuit. Does the NEC ...
0
votes
1answer
108 views

Which thermal circuit breaker should I buy?

I live in a small house in Argentina where we use 220 volts. I have a thermal circuit breaker that do squeak noises when the iron starts or the fridge starts. I adjusted the four screws of the breaker ...
0
votes
1answer
4k views

Well pump circuit keeps tripping the breaker

Our well pump motor was recently changed (it was making a huge racket, burning up switches one after the other etc. The bearings were going out). Smooth sound, no more burnt switches, water pressure ...
1
vote
2answers
619 views

Low voltage under load from main line

I have two main hot lines coming into my circuit breaker. One has a steady voltage of ~124 load or no load. The other has some mysterious problem. Sometimes it works fine delivering proper voltage ...
1
vote
2answers
525 views

Breaker box one 120 slot left but need one for a second 220 or 240 breaker.

My breaker box has only one breaker slot left for a 120 v breaker. I want to ad a 2nd 220 or 240 breaker to a new outlet to plug a heater into for my basement workshop. Is there any way I can do this ...
0
votes
3answers
456 views

Re-use circuit breaker handle tie?

I have a double pole 30 amp breaker controlling a 230 volt load that I need to replace. I cannot obtain one at this moment; perhaps tomorrow but maybe next week. Either way, I have two good used 30 ...
2
votes
2answers
990 views

Can a laptop cause an AFCI to trip?

just stumbled onto this site and crossing my fingers that someone will be able to help. My problem is the tripping of an AFCI every 3/5 weeks when a 2nd TV is turned on. Sometimes soon afterwards, ...
1
vote
1answer
177 views

Can you wire a 30A 2P standard circuit breaker “downstream” from a 60A GFCI 2p circuit breaker?

Will this still provide GFCI protection? Is this against code? Does this represent a hazard? I have a subpanel with a 60A GFCI circuit breaker, that I want to use that to feed to 2 30a 240v ...
2
votes
4answers
149 views

Breakers tripping

USA (California) home with 240V 150A service. I have a contractor working on the house siding. He accidentally drilled though NM-B/Romex on a 15A circuit. (The repair of this is not my question and I ...
3
votes
1answer
1k views

When replacing non-grounding type receptacles is a GFCI receptacle required, or can any GFCI device be used?

Under the NEC (it was 210(7)(d)(3), but appears to have moved around some), it is permissible to replace an ungrounded receptacle with a GFCI receptacle, then wire further ungrounded or non-grounded ...
1
vote
1answer
368 views

Can I install tandem breakers in this panel, and would one 20 ampere circuit be enough for a garage?

I'm a home owner searching for information before hiring an electrician to come and do work on my home. What I want: Have a separate breaker\s to service a single car garage. 3 receptacles each ...
2
votes
3answers
323 views

Do receptacles require a 20 ampere breaker?

I thought wall recepticles required a 20 amp breaker. Am I wrong?