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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0answers
35 views

Hot tub wiring plan - does my plan check out?

I'm looking for feedback on my electrical plans for a hot tub install. The space is in a 7 unit building located in NYC. The apartment is owned, not rented. I am planning on hiring an electrician for ...
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2answers
329 views

Cannot get to the screw behind disconnect switch

I'm trying to unscrew what "seems" to be (I'm not an expert) a heat pump disconnect switch. I don't know the function of this box. It's also connected to the furnace (see pictures). Box is ...
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62 views

How can I reverse my breaker box cover panel ? Opens the wrong direction

I have a square D load center - HOMC12UC. You can install it with the door opening in either direction, since there are identical punchouts in the top and bottom. However, my installer wasn't ...
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1answer
37 views

New circuit - Eaton Combined AFCI/GFCI Breaker Trips when any switch is thrown

OK, so I have spent the entire weekend upgrading the last remaining old circuit in my 1943 home. It is comprised of 5 switches for overhead fixtures (details below). Before I changed this all out, all ...
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2answers
111 views

Are there any legitimate concerns about tandem breakers?

I recently had an electrician install a new 30 space 60 circuit panel in my house, upgrading from a 20 space since I was running out of space. I bought a small number of tandems to save some space. ...
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31 views

supplying electric to a shed

So to break this down, I am running conduit since it's code here for 18 burial. Was running 10/2 because of the 70 feet by the time I was done, and wanted to mitigate any line loss. Never...ever, ...
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2answers
50 views

Supplying electricity to a shed

I can't find a straight answer to this, and my dad was the electrician, not me. I have a finished shed 65 feet from the house (8x12). Three receptacles run off of 14/2, one overhead light box, and (1)...
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0answers
64 views

No power to entire circuit after adding a single receptacle

I was just adding a receptacle to one of my electric circuits. Once completed, I turned the circuit breaker “on”. No power on any of the receptacles and lights on that circuit. I checked every ...
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1answer
51 views

Can I use a single wire and run two jumpers to two gcfi outlets and on the other side run two wires off the single wire to two gcfi circuit breakers?

Situation: Have a jetted bathtub that requires 2 15A gfci outlets each to its own breaker. Problem only have one wire running into tub area (would have to tear up.newly installed floor to run another. ...
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0answers
19 views

Can I use a single jumper wire to run to two outlets and two breakers? [duplicate]

Situation: Have a jetted bathtub that requires 2 15A gfci outlets each to its own breaker. Problem only have one wire running into tub area (would have to tear up.newly installed floor to run another. ...
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5answers
135 views

How can I add a 50AMP breaker for a NEMA 14-50 outlet to my panel?

I have two 150amp panels, both with sub-panels installed. I need to add a 50amp breaker for an electrical vehicle charging port. I'm looking for the best way to do this, with what I have available. ...
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1answer
48 views

Refrigerator Keeps Tripping Breaker

Read the whole story before responding. Refrigerator started tripping the circuit after being in our new house for 5 years now. Nothing new has been added to the outlets on that circuit breaker(20 ...
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2answers
86 views

Will a GFCI-protected 15A circuit meet light power tool needs in a shed?

I want to run electric from my house to shed, which is 23 feet from my house. I was going to run 12/2 wire from the outside gfci underground to the shed. I plan on having 2 lights and 4 outlets in the ...
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0answers
54 views

Garage outlet causes unrelated outlet's breaker to trip

When I use the power outlet (240v, 15A) outlet in my garage, it trips the breaker for the power in my home office upstairs. What is also interesting and concerning is that the breaker for the garage ...
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1answer
18 views

What size is the fuse on a watermaster/orbit sprinkler timer box? Blinking red

I've got a "watermaster" old sprinkler timer box. Fuse blew, it's got a blinking red light, what replacement fuse can I use? Appears same size as this box: https://www.youtube.com/watch?v=...
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29 views

50 amp GFCI Tripping randomly

My 50 amp GFCI Breaker tripped periodically so I disconnected the load wires from the lugs and turned it back on And after about a minute it tripped again. I then changed the breaker and it tripped ...
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1answer
75 views

Test button on GFCI breaker does nothing?

I've installed a 240V 50 A GFCI breaker for a to-be hot tub in a subpanel and just done a preliminary test. If I power it on, a non-contact voltage tester shows its load cable is live. However the ...
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3answers
3k views

What is the difference between a “handle tie” and “common trip” in circuit breakers?

This image shows a quad-breaker with handle ties. Image borrowed from this DIY question One of the comments noted that despite the "handle ties", this is not a "common trip" ...
2
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1answer
41 views

Is wiring supplying an integrated HVAC breaker a branch circuit or feeder?

Since this air handler / furnace has overcurrent protective devices in it, would my wiring from the panel then be a feeder or branch circuit? I kind of think it would be a feeder circuit. And that ...
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0answers
72 views

How do you wire a 250 volt plug when you need 240 volt power for a hot water heater

I have a 50 breaker/ plug in a temporary RV power source. The hot water heater I have needs 240 volt. How do I connect the wires on the 50 amp plug so that it runs the 240 volt needed for the hot ...
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1answer
30 views

RCCB - Type A vs AC

I would like to install an RCCB at the electrical point that will power a few devices that are going to be in my fish pond. Documentation and general info online say that Type AC RCCB can work with ...
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0answers
39 views

Light switches are not working, all outlets are

I woke up this morning and realized that none of the light switches in my home are working, however all outlets are still working. I checked the breaker and nothing was tripped, then I went ahead and ...
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0answers
26 views

Combination 20 amp dbl breaker tripping when oven is in heating cycle

We renovated a kitchen and installed a GE Profile single wall oven rated at 20 amps, I fed this with a 45 foot run of 10-3 nm cable to allow for oven substitution down the road and also I already had ...
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3answers
97 views

Does power distribution within a house need individual neutral lines from the circuit breakers?

My house has "star connections" (from the central circuit breaker panel box) for the neutral lines to power different rooms, as is normal. There is no GFCI to worry about. Would any problem ...
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2answers
101 views

Seeking advice on how to rearrange existing breakers and add 2 circuits, including a 20A GFCI/AFCI breaker in a split-buss GE panel

My panel is a GE TX1612RH split-buss 125A panel (photo below). It is an outdoor panel, vintage 1980 when home was built. I want to run two 20A circuits to a shed 60-ft away and would like to know if ...
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1answer
65 views

Generator Transfer Switch for 2 Panels

I'd like to install a Transfer Switch (10 circuits) from the Generator to the two panels I have. Each panel is rated at 200 amps. If I turn off the main breaker in one of them, the other panel still ...
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2answers
67 views

Two hots, one shared neutral, can it work with plug on neutral GFCI/AFCI breakers?

Situation: A 1950s house with some equally old wiring, and some remaining EMT wiring that is being put onto a new QO main svc panel (QO142M200PCAFVP). This is a plug-on-neutral panel. I believe per ...
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1answer
61 views

Why has one circuit lost power?

About 2 days ago we noticed that a 20 amp (single pole) circuit breaker was tripped. Ok not a big deal, it's doing it's job. Then I noticed that the breaker was tripping even with a single light on. ...
16
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4answers
5k views

Can I run a 15A table saw on a 15A circuit if there are also shop lights on the same circuit?

I apologize if this is a tired question, but none of the other similar questions I found are close enough to what I really need to know. I am hoping to buy a DeWalt table saw for use in my garage. The ...
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3answers
86 views

GFCI tester is tripping 15A breaker in panel; outlets on circuit do not appear to be GFCI outlets - is this a problem?

Level of electrical wiring knowledge: Very basic, if that Problem: 15A single-pole breaker in panel randomly trips - has been doing so since buying house in 2009 (house built in 1987) Trouble shooting ...
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3answers
998 views

Lights flickering, outlets randomly stop working

We bought a house built in 1990 in CA and have been having issues w/ lights flickering when other appliances/fixtures are run. When I turn the powder room fan OFF, a lamp connected to a receptacle 20 ...
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1answer
105 views

Can I install required breaker in my electrical panel?

GOAL: installing an external 240v wall outlet to power a future air compressor. I have attached a picture of the electrical panel in my house. I would like to understand what I am looking at in the ...
2
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0answers
93 views

Voltage drop to water heater

A couple months ago, I replaced my water heater. For the sake of full discolsure, I replaced an AO Smith 40 gal lowboy with a Bradford-White 50 gal lowboy, but the electrical requirements were still ...
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2answers
97 views

Can an AC and a dryer go on the same breaker?

I have a sub panel breaker box that has a 30 amp breaker in it right now with a dryer rated at 20.7 amps connected. I want to attach an air condition unit to this sub panel by replacing the current 30 ...
2
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2answers
243 views

Can I add a second 100A service panel alongside the existing one on the same feeder lines?

I want to install central air conditioning in my home but my current service is 100 A, I believe. If I were to upgrade to the 200 Amp service, could the breakers be configured where I have two 100 Amp ...
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2answers
1k views

New house generator AC breaker tripping

I have been in our new house less than 1 year. Yesterday we had a a prolong power outage so I decided to test the generator I got for hurricane season to the house existing generator inlet. I turned ...
2
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2answers
104 views

How do I intall GFCI breaker if wire for outlets is 12/3 using two breakers?

I have kitchen outlets that have one breaker powering the top outlets, and a separate breaker powering the bottom outlets with the tab broke off on each outlet. There are a total of 7 different ...
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1answer
52 views

What is my circuit breaker capacity load

I have sassin breaker 3SB1-63 C63 400v 6000A What is the amp of it really confused
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0answers
45 views

Breaker buzzing even after replacement

Ok, so. I just built a small home for myself. I did all the wiring with the help of a friend. I just now got a solar setup, 8 months later, and am hooking it all together. I have 2 breakers one of ...
4
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1answer
70 views

Electrical hook up for new stove top

The cook top I am replacing (a small, old Credo unit) uses a 2P 30A Circuit breaker. The similarly small new Summit cooktop I plan to install has the following electrical specs: Connection voltage: ...
0
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1answer
43 views

4 wires in single-pole switch

I am trying to put a smart switch in place of a regular one and when I opened the box I see 4 wires instead of 3 and looks like one of the black wire actually feeds the remaining devices on the ...
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1answer
429 views

Using NEMA 14-50 with 60A breaker

An electrician installed a Tesla wall charger with a 60A breaker. I've added a NEMA 14-50 receptacle to the circuit behind a toggle switch (either the wall charger is powered or the plug, not both). ...
7
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1answer
1k views

Main breaker and branch breaker tripped simultaneously

I live in a high rise apartment built in the '70s (USA), and this afternoon we suddenly lost all power to just our unit. After some investigation we found that the main disconnect (70A) powering our ...
2
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2answers
90 views

Is a noisy / humming GFCI breaker OK?

I noticed a slight humming noise coming from a subpanel in my house. Narrowed it down to a single GFCI breaker. When I press the test button on this breaker and it trips to off, the sound is gone. Its ...
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1answer
56 views

Should my pool pump be hard-wired or plugged into an oulet?

I have pool heat pump plugged to 30A outlet, with 10# my questions : following instructions on the plate, is it ok to leave this pump plugged to this 30A outlet (connected to 30A breaker) I mean is ...
13
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4answers
1k views

GFCI Breaker - Good or Bad?

I have a GFCI circuit (GFCI breaker in the breaker box). If I attempt to test this circuit by plugging in my GFI Tester into a standard outlet that is on this GFCI circuit, the GFI Tester lights ...
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0answers
52 views

Can I add a 60 amp hot tub on a 100 amp service?

I'm adding a hot tub to our backyard. The hot tub can pull up to a max of 60 amps when all the pumps and heater are going. However, a sales rep said it's not common that you would be pulling all 60 ...
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2answers
95 views

AFCI breakers in a Main Panel installed and tripping immediately with neutral pigtail connected

Finishing my basement and had some help with our electrical install. I'm located in NJ btw, being that we installed new branched circuits (about 18 outlets and 16 LED lights), I had to use 3 breakers....
3
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2answers
63 views

Total Possible Amperage of Sub-Breaker Box

I've been trying to find more information on how cheaters work but could never come to a definite decision on how many total amps they might pull. Basically my question comes down to this: In the ...
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4answers
68 views

Trace live wire without an outlet

I have an old-school intercom installed in the house that I am in the process of disconnecting. When I remove the master unit from the wall, I found 120v mains coming in directly to a transformer ...

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