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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4
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1answer
125 views

Where can I find a cover for this external breaker box (1961 SFH in CA)?

Just moved into a house built in 1961 (Bay Area, CA) and saw this box on the outside of the house in the back yard. I'd like to secure it somehow but haven't been able to locate anything that fits ...
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1answer
79 views

Can I use existing #4 wire to supply a 15A outlet?

I have a 2 part question. Can you connect an existing 4 gauge wire to a 15 amp breaker? (The wire is already there, instead of me pulling everything out.) Can I connect this 4 gauge wire to a 14/2 ...
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2answers
51 views

Oven warmer trips GFCI and bake element doesn't work

I have a Kenmore gas oven model 790.75663201. Started the warmer for the first time since I bought the house five years ago. The GFCI next to it tripped after a couple of minutes. Happens every time. ...
2
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2answers
84 views

Moved compressor from one outlet to another. Now it trips the breaker. Same circuit. Different outlet. Why?

I had a single phase 115v ac compressor connected to a 20A circuit. It worked in that location for many years. Recently, I moved the compressor to another outlet on the same circuit. Now it trips the ...
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0answers
33 views

Outlet, breaker issue

New home. I replaced all the old outlets with decos and reinstalled. I plugged in a light, 2 prong, and no issue. I plugged in a tester to check see that the others were wired correctly and the green ...
2
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1answer
80 views

Dryer & Stove share breakers in 1972 apt

Question1: Why would one hot from the stove be wired into the dryer breaker and one hot from the dryer be wired into the stove breaker? Each has a separate neutral and both are grounded with their ...
0
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2answers
92 views

Why did my house lights flicker when I was using kitchen appliances?

I was cooking in the kitchen using bake function of an air fryer for 30 minutes. Turned on the microwave for 30. Power went off on other circuits, but stayed on in the bedrooms and bathrooms. No ...
0
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1answer
38 views

What is the purpose of GFCI? [duplicate]

There is a circuit breaker in every home, which trips the switch if there is a fault somewhere in a circuit. And there is a GFCI outlet/switch which also trips if there is a fault downstream. If ...
3
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2answers
134 views

Thinking about replacing old fuse box. Looking for advice

In my detached workshop/garage, I have an old fuse panel servicing that building only. I am thinking about switching it out with a new small breaker panel. I have been reading everything I can find ...
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2answers
42 views

Replaced GFCI no power in line wire but power in load wire

We overloaded our back lanai outlet (used 20amp doggy hair dryer on a 15amp breaker oops prior house handled it so didn't think to check) and melted the GFCI outlet in the garage that protects the ...
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2answers
44 views

Can I use a 3-wire+ground to serve a 240v and a 120v circuit?

When I remodeled my home, in anticipation of replacing an old gas water heater with a new electric heater, I had a 10/3 cable run to the basement utility room. Now the heater has been delivered I ...
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2answers
88 views

Neutral and ground seperation at a sub-panel

Could someone explain to me why the neutral and ground bars are never bonded on a sub panel? It's my understanding that the reason they're separated is so that the current returning on the neutral ...
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2answers
81 views

Consumer unit tripping and hard to reset

I had a power cut this morning. After a lot of experimentation, it seems to be related to the washing machine. The thing that confuses me is that when we power the washing machine the master circuit ...
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2answers
56 views

External GFCI Won't Reset

Last night we had a good rain storm and an exterior GFCI outlet tripped. That outlet is controlled by a switch in my foyer and is used to turn walkway lights on or off. The test button of the outlet ...
0
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2answers
91 views

Why did my lights go out when I accidentally dropped a charger plug on a power cord with empty sockets?

I unplugged my computer charger from a multi-plug extension cord with many empty sockets and the wires were still tangled on the floor so I pulled on the charger to get it loose, but I accidentally ...
0
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1answer
42 views

Can I have a NEMA 14-30 outlet on a 50 amp breaker?

I'm having an electrician install a new circuit in my garage. I don't currently have a Tesla or other high powered car, but I might in the future, so I want to have the wiring capable of handling a ...
0
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2answers
65 views

zinsco breaker box in garage

Just got this place. This panel is in the garage. It is connected to the house main on a 50amp breaker. the panel in garage has 8 circuits going out to 20 outlets and one light fixture on ceiling. I ...
0
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1answer
20 views

Shorted receptacle, now another recep (GFCI) not working. Breaker perhaps?

Receptacle on one breaker, light switch next to it on another breaker. Mistakenly touched receptacle black wire on light switch and caused sparks. Receptacle failed after that. Had another nearby GFCI ...
0
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1answer
45 views

How can I add a service disconnect between main panel breaker and load side

I am working on a small shop and installed a 30amp plugin type breaker to the main breaker panel. Now the shop has load of a 230v ac Single phase motor, some lights and outlets. I wanted to add a ...
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2answers
101 views

RV body frame producing a 33-40V~

I have a problem with any given breaker leaking a current to the frame of the body. I have tested the pedestal of that the RV is connected to and there seems to be no problems there, with all ...
8
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2answers
2k views

Do the end caps on this fuse get transferred to the new fuse when/if it blows?

This is one of the time delay fuses in the box outside by my a/c condensor unit: New ones don't come with the copper end caps as far as I can tell: I'm guessing they just get pried off the bad fuse ...
2
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2answers
89 views

No ground bus in panel

Correct me if I’m wrong but there is no bus panel here. Working on a bath remodel and running new wires to two new breakers for new GFCI receptacle and one for heated floor. As this is main panel ...
8
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3answers
1k views

Can someone explain this Tandem Breaker Setup to me?

Question I'm scratching my head trying to understand why my Sub Panel was set up using the tandem breaker configuration described (with picture) below. There are 3 tandem breakers, with the top two on ...
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1answer
73 views

How to convert eaton type BRD to type BR and is this a good idea?

There seems to be a shortage of breakers around me. No one has the Eaton type BR breaker in a 20 tandem. Electrical supply house handed me a BRD type and I had heard about removing the metal plate in ...
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1answer
33 views

Need to know if 50 amp break

Want to know 100amp breaker box Can be use
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0answers
36 views

Burning 20 amp breaker

I have a plug in hot tub on a 15amp GFCI outlet (120V). The cord for the hot tub and outlet have GFCI. I have tested the outlet and it works fine. The breaker started getting hot and burned out. I ...
4
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1answer
72 views

Burned neutral wire on breaker

I recently asked for help because my dishwasher was tripping the circuit at random points in the cycle a few times last week. It was suggested to switch the breaker for another to see if it was a ...
0
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2answers
65 views

Is my new monitor tripping my AFCI breaker?

I just bought a new computer monitor last night (a Viotek GN34C) and since then, the 15A AFCI breaker for my bedroom has gone off twice. I doubt I'm drawing too much power, since only my PC, monitor, ...
7
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2answers
544 views

Crimp spade connectors in breaker box?

I am installing an Eaton CHSPT2ULTRA surge protector to my Siemens QP breaker box. The surge protector has (4) 14-gauge stranded wires to connect. I had no problems making a tight connection with ...
0
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3answers
88 views

double pole breaker trips all the time

First of all, I have a dumb question: does this white double pole breaker offer 20A or 40A (20A+20A as labeled) in total? This double pole breaker controls both pool pump and washer (washing machine). ...
0
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2answers
68 views

How to test a Circuit Breaker

I have very old Wadsworth circuit breakers that almost never trip. An electrician told me that sometimes these breakers aren't tripping when they should. There's very little online about this company ...
2
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1answer
81 views

Faulty breaker? Older than the others?

One of my breakers keeps tripping - it is on a circuit with only a dishawasher and microwave on it. It is almost always the dishwasher that causes the break. Some days it does, some it doesn't. Today, ...
3
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1answer
129 views

Is it safe to replace a 15 amp GFCI outlet with a 20 amp GFCI outlet?

I have a 15 amp GFCI outlet on a circuit that has a 20 amp breaker in the fuse panel. Is it safe to replace the 15 amp GFCI outlet with a 20 amp GFCI outlet?
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0answers
40 views

I have a light switch that crosses multiple breakers

The switch is part of a 3way gangbox. I recently had the panel updated to a 220 from 100. But the electricians didn't map it any better than it was already mapped and just essentially gave me more ...
3
votes
1answer
93 views

Do modern, well designed circuit breakers and/or panels have a 25-40 year lifespan?

If I type "electrical panel lifespan" into Google, I get a lot of results from electrical service providers that panels and circuit breakers both wear our after several decades, and require ...
1
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3answers
82 views

Amperage, receptacles, breakers

I acquired a fixer upper house built in the early 1950s. I looked into the electrical box and all the breakers there. It looks like some random assignment of breakers to the points of use throughout ...
1
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3answers
84 views

Need help planning an electrical renovation

I live in Thailand and I am renovating a small townhouse. I want to do the right thing and plan the circuit breaker with the correct amps. After a little reading it seems we should use 1.5mm cabling ...
1
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2answers
67 views

Correct voltage of hot wires with common neutral

I just bought a house and am changing around some outlets in the garage, and I want to make sure the electricity is wired properly. There are 6 wires in a conduit going to the garage, three hot (red, ...
0
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1answer
72 views

Wire in breaker panel is dead

The left side of my kitchen stopped working recently. I replaced the breaker with no avail. I then took off the breaker and tested the black wire itself. It reads 0v how do I replace this wire?
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0answers
86 views

What would cause a terminal to explode like that on a circuit breaker switch?

My landlord was having his fun turning on and off my stove and hot water to get me to move out instead of fixing broken windows. As soon as the police got involved and my lawyer sent a notice, he had ...
0
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1answer
57 views

How do you (safely) test a GFCI circuit breaker from the outlet when the circuit has no ground?

I know I can press the "test" button on the breaker in the panel. But I want to double-check that there isn't some strange wiring situation hidden in the walls that could prevent the GFCI ...
1
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1answer
57 views

I accidentally short the c wire and both units not turning back on

I was trying to installed my nest thermostats.the power were shut off but it seem some current still in, so it short the system my question I can't located the fuse on the board so is that mean the ...
2
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3answers
107 views

AFCI / GFCI Circuit failure

I've been unable to diagnose why a circuit in my house no longer works. It's a 20 amp circuit that feeds 4 outlets in my kitchen area, and it has both a GFCI(link) and AFCI. The entire house is ...
1
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1answer
37 views

Dimmer burned and the breaker tripping on an existing LED circuit

Let me try to explain this the best I can: I have a single recessed LED circuit that has 13 lights on two dimmers, 9 on one and 4 on another, covering kitchen and dinning, respectively, on a 15 amp ...
7
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2answers
816 views

Should my receptacle tester be able to trip a GFCI breaker in the panel box?

I have a receptacle tester with a button to test GFCI. It works properly in tripping the GFCI if the outlet itself is a GFCI outlet. However when I test it on circuits which have a GFCI breaker ...
1
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1answer
68 views

Best way to wire 50amp in breaker box

I'm trying to install a 50amp breaker for a NEMA 14-50R outlet. After taking off the cover and investigating how the existing wires are installed, I'm unsure of the best way to install the new breaker....
8
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2answers
2k views

Why is my neutral wire connected to a breaker?

I'm going to be running a new electrical line to a new shed. I opened up my breaker box and came across what's pictured below. The top 20A breaker goes to our well pump, and the 15A goes to the shed. ...
1
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1answer
80 views

Help identify this breaker panel config

I'm confused about the power available to me by looking in this breaker box. I'm thinking of leasing this space, which is an office/retail shop. Wall outlets have both 120 and 240 volt outlets. Owner ...
1
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2answers
169 views

CAFI vs AFCI? Pigtail?

I need a new AFCI circuit breaker for a new refrigerator-only circuit we're running. Square D Homeline. Don't want any GFCI outlet or breaker. I bought two breakers at home depot, but I don't know ...
3
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2answers
1k views

Would an old bad main meter panel wear out a newer panel and breakers in house?

lights flickering,temporary power loss last few weeks. Scheduled main meter panel upgrade in a few days. This am half of house lost power w/o breakers tripping? Can the old meter panel wear out the ...

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