Questions tagged [circuit-breaker]

For questions generally relating to safety devices used to automatically stop the flow of electric current in the event of a fault condition. Use this tag for questions about fuses, too.

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3answers
52 views

Should the main circuit breaker be AFCI, CAFCI or just standard?

Let's say all the other breakers in the panel are standard (i.e. not ACFI). Would it help to have the main breaker AFCI or CAFCI? Conversely, let's say the other breakers are all CAFCI. Can I use a ...
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0answers
19 views

Only one side of Tandem Circuit lost power at outlets

Replaced all outlets in a room that was part of a 15amp tandem circuit breaker. One circuit had a room that has dual outlets with a switch controlling the top outlet on each. Turned both breakers off ...
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2answers
41 views

Why do type 2 SPD’s* require overcurrent protection (*load side, mains, Surge Protection Devices)

Bought a house built in the 1970’s in a 1970’s neighborhood. It has a 200AMP main panel. A serviceman replacing 1 of the 2 mainboards in the refrigerator suggested that I install an SPD inline in each ...
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1answer
42 views

Can fuses be intermittent?

While I was at work today I had a power outage in one of my rooms. I know because I had multiple computers in there that were off for several minutes(fully booted back up in 14 minutes), but the ...
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2answers
73 views

Turning off oven breaker cuts power to AC, and vice versa. Why?

Turning off oven breaker cuts power to AC, and vice versa. Why?
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1answer
53 views

how do I convert a existing circuit from 240 to 30 amp? [on hold]

I have an existing 240 plug in my garage and I want to convert that to plug in my camper for 30-50 amps.
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2answers
40 views

GFCI breaker trips

My 20 amp breaker in my basement to my unattached garage works fine, but when I put in a gfci breaker, it pops as soon as I flip it on, two different breakers. The only thing that is plugged into my ...
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1answer
52 views

Separate box for electric water heater?

Do I need a separate electrical box for an electric water heater. I was told I needed a one so it's up to code as per the electrician? Changing from gas to electric I thought I could connect it to the ...
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5answers
5k views

I do not have power to all my breakers

I exchanged my double pole 40 ampere breaker that supplied my sub panel for my garage with a single pole 40 ampere and now out of my six breakers in the sub panel only 1,3, and 5 have power. How do I ...
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1answer
32 views

Two Poles Three Black Wires and One White - Convert to 120 V Outlets

I have a two pole breaker with three black wires and one white wire. The breaker is 50 amps. The three black wires are labeled "Load Power", and the white wire is labeled "Neutral". Where an outlet ...
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1answer
93 views

circuit box problem

Sparks flew out of my breaker box, probably due to faulty wiring. In an effort to troubleshoot, I removed all the breaker and labeled them. Got a wire tracer and tried to trace the wires to see ...
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3answers
41 views

Solar Power System Circuit Breaker and fuse Amps

So the question is kinda part 2 of my question about the DC Output Today I went to Hellweg (It's like an Electronics shop in Germany/Europe). To buy a Circuit Breaker or Fuse (idk what I am looking ...
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1answer
63 views

Can I wire both a 50 amp hot tub and 50 amp RV plug in the same box?

I have two projects in the works, installing a hot tub and building an RV pad. Both the RV and hot tub run on 50 amps and 220 volts. RV's plug-in but hot tubs are wired directly. Is there a single ...
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1answer
72 views

Power tripping out

I live in Spain, my home's electrics are just terrible. I'm waiting for an electrician to look at it and quote me for sorting it all out. Things are frequently tripping out, I've been trying to spot ...
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2answers
91 views

What alternatives to Stab-Lok breakers are there?

After reading this article: https://inspectapedia.com/fpe/Federal_Pioneer_Panel_Safety.php and from it a link to this one: https://inspectapedia.com/electric/Circuit-Breaker-Defects-Aronstein-IEEE-...
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1answer
85 views

Why does a breaker buzz when you turn it on?

I've had an issue recently where turning on the light in one room occasionally turns off the power in that breaker. The breaker doesn't actually appear to be tripped, but resetting the breaker will ...
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2answers
128 views

Can I run a #12 outlet branch and a #14 light branch off a 30A breaker?

Was wondering if i can feed an entire room with one 30 amp breaker, 10/2 to an attic junction box, then break out 12/2 for outlet daisy chain (four 15 amp-type outlets) and 14/2 for a light circuit.
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1answer
78 views

Apartment's Hallway Lights Controlled By My Unit's Circuit Breaker

I manually flipped a breaker before doing work in my bathroom and noticed that the apartment hallway light is controlled by my unit's circuit breaker. Does this mean that I get billed for the hallway ...
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1answer
70 views

Electrical problem in the breaker box

The black wire is connected to the neutral bar and the white wire is connected to the breaker. Should it be this way for any reason
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0answers
34 views

Dryer (30amp) on Single Pole Breaker

My 200amp panel is pretty full so I started mapping all the circuits since I suspected that there are abandoned circuits or circuits with very small loads on them. I am used to finding dryers on 30amp ...
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2answers
89 views

Combining wires from two breakers to one appliance?

I have a wall oven and a microwave oven, connected to 30A and 20A breakers respectively, and both are 240V. Now I'm thinking of replacing it with another double-oven model that runs a single wire ...
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2answers
261 views

breaker trips every 2 to 8 days (4 companies failed to fix this)

4 different electrical companies have inspected my apartment none have solved this issue i've endured this for half a year now here's a video i made that explains the symptoms in detail: https://www....
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1answer
103 views

Terminating unused wiring in electrical box

I am upgrading my electrical box with more circuits, and circuit breakers. I would like terminate all the unused circuits wires in the electrical box panel with dummy circuit breakers rather than ...
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3answers
3k views

Why did my leaking pool light trip the circuit breaker, but not the GFCI?

This is, I am sure, an extremely naive question. I hope that's okay (and I hope it can be answered at a level I'll understand). The background: My swimming pool has underwater light fixtures, on ...
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3answers
40 views

3 wire 240 double pole breaker to. 110v single pole breaker

I have 3 wire ( black, white,green) 240 on a double pole breaker. White and black wire connected to breaker green to neutral bar. Want to convert to 120v single pole breaker. Which wire do I connect ...
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1answer
65 views

How do I replace and insert what kind of missing pin - bolt in a home fused disconnect box?

Power from Hydro (the electric company) runs into this disconnect box then continues to the meter. I'm looking for help as to what I should use to replace the missing bolt or pin that connects the on/...
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2answers
22 views

What is the correct connections for a Murray MP215AFC breaker for a Split A/C unit

I seem to be running into a never to be found answer on the wiring for this 240 2 pole combination AFC breaker. I have a Split unit wired L1 & L2 with a ground back to the sub panel not a ...
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3answers
59 views

GFCI Circuit Breakers Wired Incorrectly

Just moved into 5yr old home, was looking to expand a garage outlet to afford more outlets. The outlet is below the panel is a GGCI outlet, however, the circuit breaker is not, so, I am going to ...
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1answer
54 views

Breaker sometimes trips when Microwave turned on

Is there a power strip circuit breaker I can use to stop having to go to the basement when the microwave sometimes trips the circuit breaker?
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0answers
70 views

Weird Electrical Issue In Garage

Hi I have a question and I was hoping to get some insite. First I am getting a certified electrician to come check it out on Thursday but figured let me do my homework. So I noticed the other day my ...
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1answer
85 views

Circuit Not on Any Breaker, but Off with Main Breaker

Looking through my main panel today I discovered that at least 1 circuit does not appear to be attacked to any breaker. If I turn off the main breaker of the house, the circuit does turn off. How can ...
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3answers
95 views

My house breaker box have only breakers which seat only 1 wire. No seat for a load neutral. Can I still install a GFCI Breaker?

My house breaker box have only breakers which seat only 1 wire. No seat for a load neutral. Literally one screw on the breaker. There are neutrals on the bar and everything works no problem. I want ...
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1answer
53 views

Home electric circuit goes dead without tripping breaker

I have a 15 amp circuit in my home with 8 outlets. Every couple of months it mysteriously stops working, however, the breaker doesn’t trip. After a couple days I re-apply the breaker and all is good....
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3answers
110 views

Can I plug a washing machine requiring a 15A breaker into a 20A outlet?

I am removing an old Asko washer that plugs into single outlet 20 amp box. The new Samsung washer requires "AC 120 V / 60 Hz / 15 AMP fuse or circuit breaker." Can I safely replace the 20 amp ...
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1answer
62 views

Microwave on 220 volt branch

A friend has a microwave on the same circuit as electric stove. Independently they work fine but if an element on the stove is on and the microwave is turned on the breaker goes off. An electrician ...
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2answers
83 views

Exterior outlet not working

I have had a problem with 3 rooms and a bathroom all on one breaker. I originally thought I would need to split the circuit, but then decided to check the breaker first in case there were 2 wires ...
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2answers
106 views

Why don't we just use combination AFCI/GFCI breakers for every circuit in a home?

With pretty much every circuit in a home needing one of the two types of protection (AFCI or GFCI), why don't all new homes have combination breakers installed just to be safe? Would it hurt anything ...
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2answers
98 views

Twin breaker allowance

I plan to use a tandem(AKA duplex, slimline, twin, half-height, half-inch, double or wafer breakers) circuit breaker for kitchen. The 20 Amp Tandem Single Pole Type QT Circuit Breaker ( here is the ...
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1answer
94 views

Electricians left breakers unhooked

Handy homeowner here. Electricians ran wire and put in 5 new breakers on my panel as part of an addition to my house. One is hooked up and feeds an outlet, the other 4 are dead. Flipping the switches ...
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1answer
72 views

Installed new breaker to relieve load in existing circuit. Still trips new breaker

I recently moved a treadmill to workout room. Whenever the treadmill is in use, it trips the breaker shortly after starting up. I figured this is because the workout room also shares a circuit with ...
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0answers
16 views

changing fluorescent multi ballast lights with 7 wires and wall switch to simple led 3 wire lamp

i have situation where one end of old multi ballast lights have on one end a green (grond} a hot all the time red then a black and white wire. on other end there are black,white, and ground, that have ...
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2answers
61 views

Wiring a sub-panel with an equal sized breaker on each end of the feed, which will trip first?

I'm wiring up a small backyard tiny house for use as a rental.  Main power will be supplied by a 30A breaker and 10/2 wire coming from the main house, to an RV box, then to an RV plug, then into the ...
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2answers
285 views

Entire circuit dead after GFCI outlet

We had a storm, and a GFCI outlet breaker flipped (orange light on). I reset it by pushing the button, and the outlet started working again. But everything else on the circuit remains dead. Can a ...
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2answers
89 views

If I install a 30 amp breaker in my breaker box, can I use 15 amp outlets on the circuit, provided none of the appliances used exceed 15 amps?

I have a shed that has outlets wired with either 14 or 12 gauge wire and 15 amp receptacles. I already know that my total usage will be almost 30 amps. If I use a #10 on the first receptacle and a 30 ...
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2answers
852 views

GFCI Outlet in Bathroom, Lights not working

I completely lost power only in bathroom, so I reset the GFCI and then I turned on the light switch. As soon as I flipped the light switch up the lights flashed on then off and the GFCI outlet made a ...
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2answers
45 views

Need help understanding amperage ratings for panels and sub panels

Im trying to understand the concept of amperage ratings for panels, and sub panels, but I'm not sure I have it figured out, sorry for any novice terminology. I'm in America. Grounds omitted for ...
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2answers
74 views

Understanding the wiring of 2-Pole Quad Circuit Breakers

I only want to understand the concept, so you dont have to address if my panel accepts tandem breakers or a certain brand of breakers. I will also omit any reference to ground wires for clarity. I ...
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1answer
64 views

Why isn’t there a solution to detect loose neutral

Loose neutrals in a house can easily cause house fires and are not always detected until it is too late. Why isn’t there main “smart” breakers that not only detect loose neutrals / phase imbalance and ...
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1answer
47 views

fuse panel and sub panel replacement with no ground to be found

Replacing an old fuse panel with a new breaker panel, and a remote fuse sub-panel (on the other side of the basement) with a new breaker sub-panel. There is no water pipe anywhere near the incoming ...
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1answer
59 views

Wiring question for detached room

Would it be possible to power the detached room from the breaker box with two 30 amp breakers to the room with UF 10-2 wiring underground from the breaker box and then landed into the junction box at ...