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

learn more… | top users | synonyms (2)

4
votes
2answers
747 views

Why does my circuit breaker keep tripping for a lighting circuit?

I have 4 light poles with 70 wattage bulbs in it. What size breaker do i need to run all four of my light poles. I have a 20 breaker on it, but the breaker keeps on tripping. Please help me.
0
votes
1answer
78 views

Trace a breaker to what it powers

I have started on the task of labeling all my breakers but in this process it has left me with one major issue, I have one breaker that doesn't kill anything in the house. During the checks every ...
1
vote
1answer
50 views

HVAC tripping breaker - things to check before replacing?

HVAC system (we're in Houston, it's still hot here) stopped working Tuesday. A/C guy came out, determined it was tripping breaker. Would trip immediately after resetting, but after a couple of ...
1
vote
2answers
169 views

How Do I Connect 00 AWG Wire to a 100A breaker?

I'm hooking a 100A service panel to my meter pan. There is the 100A disconnect panel on the right side that feeds the little house, I'm installing another panel on the left side to service my barn, an ...
0
votes
2answers
123 views

Do I need a breaker in main pannel for sub pannel?

I have no breaker space in the main 200amp panel. I'd like to set a 100 amp sub panel with its own breaker. Can I connect the sub panel to the main entry lugs on the 200 amp panel?
0
votes
1answer
1k views

How many ceiling fans and switches can I put on one breaker [duplicate]

I have a person that wants to wire in four light boxes and four ceiling fans with switches and I need to know if I can run all four of them safely from one breaker and if so what kind of breaker? This ...
1
vote
1answer
492 views

Circuit breakers off, but meter still running

I purchased a house a few weeks ago and got the power connected about a week ago. The house has been empty and I leave all the circuit breakers off. The Meter is digital but the display doesn't seem ...
0
votes
2answers
448 views

Electrician Terminology “FAU”

I've noticed these letters several times written on the circuit breaker panel door. Does someone know what F.A.U. stands for in this context?
1
vote
1answer
68 views

Is there any advantage of one of these types of switches over the other?

Shown in the photos below are two different 2-pole breaker switches in my circuit box. In order to turn the 15 amp switch on and off it must be pushed along a longer section of the breaker than the 20 ...
2
votes
1answer
205 views

How can I determine the rating of an unmarked dual-pole circuit breaker?

I would like to install a new electric cooktop. The panel has a dual-pole breaker serving the current electric cooktop but there is NO marking on the breaker to indicate the rating. The new cooktop ...
1
vote
1answer
78 views

What areas of a home are required to be AFCI protected?

I've got a Crouse Hinds panel with the majority of the breakers being of the ridiculous side connecting type. The panel and breakers are old and beginning to arc due to the lose connection. I've found ...
0
votes
0answers
93 views

I am having problems with my circuit breakers. can you help?

When I shut one breaker off all the power shuts off to 5 other breakers. What could that be?
2
votes
2answers
121 views

Connecting 2 GFCI Breakers to 2 Hot Leads and 1 Common

So I just bought my first house and in lieu of changing loads of outlets in the kitchen for GFCI outlets I went with two 20A GFCI breakers. Upon going to install the breakers I found that the cable ...
0
votes
0answers
76 views

wiring my mobile home breaker panel

Someone had broke in and stole my 200 amp breaker panel by cutting the wires how do i know what the wires go to after entering the ceiling also there is no writing on these wires to tell me what gauge ...
1
vote
1answer
66 views

Circuit Breaker installation

Why is it so difficult to put a circuit breaker in? I push the plastic part in but the steel contact does not go in. I broke a single 20 amp...any tricks?
1
vote
3answers
95 views

Circuit Breaker change

I am changing a Federal Pacific Electric Co. Circuit Breaker double 40amps but I can't find one. Can I use a double 50? It's for a wall oven?
1
vote
1answer
231 views

How can I replace circuit breakers with GFCI breakers when it is a multiwire branch circuit?

We have 2 carriage lights on our patio and 3 flood lights on our eves. The carriage lights are controlled by two 3-way switches and the yard lights are controlled by another set of two 3-way light ...
0
votes
0answers
61 views

Breaker for compressor tripping when a/c reaching stage 2

My breaker for the compressor is tripping when my a/c is switching to stage2 in very hot weather. Is there anyone who can give me the steps to troubleshoot this issue?
2
votes
2answers
984 views

Any reason not to leave unused breaker in the panel?

My main panel has a couple unused slots, but the metal tab covering those slots has already been removed. One of those slots has an unused breaker, the other one used to have a plastic filler panel, ...
5
votes
3answers
3k views

What does “Range” Mean in Electrical Circuits?

The switching have been tripping a lot at my apartment, sometimes an entire wall is completely powerless, but the rest of the rooms are just fine. Usually, I just need to turn the switch off and on ...
-1
votes
1answer
177 views

installing sub panel in detached guest house running three 60 amp breakers for appliances

so im installing a sub panel to detached guest house approximately 50' from the main panel. running all electric appliances electric range,electric tankless water heater, and a/c unit. all three of ...
2
votes
2answers
128 views

I have phantom electricity

I have three outlets in a room that are not on the same circuit as the rest of the outlets in two rooms. I have most of the circuits in the house mapped and identified on two breaker panels. The ...
4
votes
4answers
437 views

Different circuit breakers keep tripping, some not re-setting

Background: South Carolina house built in 2009, assume all electrical systems, main panel and circuit breakers new at that time. I moved into the house in May having transferred from the UK. I brought ...
1
vote
2answers
112 views

Light sconces tripping circuit breaker

I recently installed two sconces in our kitchen to replace some old halogen lights with LED bulbs. The boxes had three (?!) White wires twisted together, two black wires twisted, and one red. I ...
2
votes
2answers
327 views

How can I add arc-fault protection to circuits in this panel?

In my sub-panel that services the home I have 4 separate 20 amp circuit breakers all strapped together to trip all if one trips. On these individual circuits are the garbage disposal, clothes washer, ...
0
votes
1answer
130 views

No voltage from breaker even though breaker is good

I’ve searched the forums quite a bit and can’t find any other question like this one. I recently moved into a new house and needed to remove a light fixture from a wall in a bathroom. So I needed to ...
0
votes
3answers
229 views

2 breakers powering 1 set of outlets

this is my first time posting a question to a forum like this. Electrician added a breaker and ran a line to an outlet that had power from a different circuit but had a short in it that could not be ...
3
votes
2answers
171 views

How to track down a short circuit in attic with pressed metal ceiling?

When switching on a light the circuit breaker tripped. On the distribution board, I switched off the sub-circuit for the light. The rest of the house and the plugs in the room with the light still ...
2
votes
1answer
1k views

Replacing 10 amp breaker for 20 amp

I'll try to keep this short but there is a bit of background info that may be needed. Couple of days I rented a floor grinder to eliminate uneven concrete floor in the basement. The grinder kept ...
1
vote
3answers
2k views

Oven suddenly tripping circuit breaker…bad oven or bad breaker?

We have a double Thermador oven in our house. We've owned the house for around two years, and the oven has worked fine up until the last few weeks. Now, using either of the ovens trips the circuit ...
0
votes
2answers
2k views

Outlet causes breaker/fuse to trip but why

Been living in my house for 9 years. I've got a certain outlet in my master bedroom that just started doing something strange. Let's say I have a light on in my master bedroom...and I try to plug in ...
1
vote
3answers
11k views

Why does my power keep going out to most of my house?

My power frequently goes out, mostly at night or early morning. Sometimes it goes off multiple times in a row, sometimes just once. Most of the time, I can get it to come right back on by flipping the ...
0
votes
1answer
324 views

internal fuse on air handler blows every time it shuts off

air handler for air conditioner has worked fine since I moved into the house but this year both times the air conditioner has turned on it has not restarted. Both times so far the problem has been ...
0
votes
3answers
2k views

Got a used Electric oven - not sure what wire and breaker to use

We just got a used electric oven. We had propane, but no longer have access to propane. Currently there is only a standard wall outlet behind the oven. I realize I need to run a new wire, etc., but ...
0
votes
0answers
57 views

Can I install a 150A breaker if the the outdoor MCCB is 100 A?

I have a villa, which is 375m2. On the boundary wall of the villa I have a molded case circuit breaker (MCCB) rated for 100A. I need to install a main distribution panel (MDP) inside the villa. The ...
1
vote
1answer
839 views

Is it safe to pull a continuous 18 amps from a 15 amp outlet?

I have a heater that draws a continuous 18 amps and has a 20 amp plug. I created an extension cord to plug into the wall, however on one end it's a 20 amp receptacle - heater plugged into extension ...
2
votes
1answer
305 views

Is it possible to fry a lamp's internal wiring if I put the wrong bulb in?

I went to the hardware store pulled a bunch of LED bulbs off the shelf. One of the bulbs found its way into the wrong box and had a significantly smaller screw base than your typical light bulb base. ...
0
votes
3answers
2k 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 ...
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
60 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 ...
11
votes
2answers
25k views

Should all Federal Pacific panels be replaced?

I understand that Federal Panel Stab Lok breakers have the potential for becoming stuck, overheating, and starting fires. My home has a Federal Pacific panel but no outward markings of being a Stab ...
1
vote
1answer
116 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
2answers
1k 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 ...
2
votes
1answer
1k 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 ...
3
votes
3answers
414 views

Lighting circuit trips breaker every time

I have a lighting circuit in my home like so: Every time I turn on the switch, the breaker trips. This circuit has existed for over four years and only now has the problem begun. I've checked all ...
0
votes
2answers
115 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 ...
4
votes
3answers
333 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 ...
2
votes
2answers
437 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 ...
3
votes
2answers
405 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 (...