Questions tagged [afci]

Arc-fault circuit interrupter are safety switches, similar to GFCI, that are used to detect electrical arcing and shutoff power to prevent the risk of fire.

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2answers
73 views

All my AFCIs trip as soon as load applied on a new panel

I'm adding new panel connected to my main with a 125 amp breaker. I'm moving some circuits from the main to the new panel and adding one new circuit. The existing circuits use a standard breaker but ...
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2answers
93 views

Preventing inductive kickback from reaching mains in a plugin A/C unit

What off-the-shelf plug-in devices are available to prevent inductive kickback from reaching the mains circuit? Explanation: I have a plug-in Air Conditioner unit (rated 10.8A) on a 20A panel-...
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1answer
50 views

Compatible GFCI/AFCI combo breakers

I have this panel: https://www.homedepot.com/p/Eaton-BR-125-Amp-6-Space-12-Circuit-Indoor-Main-Lug-Flush-with-Ground-Bar-BR612L125FGP/305882536 And these EATON Type BR120 Type C120 breakers: What ...
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3answers
82 views

Is this panel eligible for GFCI/AFCI breakers?

I have the panel below, and would like to know if it's recommended and or easy to simply replace current breakers with more modern GFCI/AFCI ones. I think they provide extra safety, and it seems it's ...
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3answers
96 views

Disposal Circuit Update

I moved to a house built in 1995 and want to update the disposal connection, but found some conflicting rules that I don't know how best to comply with. The existing connection is a 14-2 NM cable run ...
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1answer
43 views

AFI Breakers Overheating and Tripping - would switching some to regular circuits with an AFI outlet be an acceptable solution?

We have recently upgraded several of our circuit breakers to the new combination AFI units required by NEC. Our panel is full, however, so this means several of these AFIs are stacked next to each ...
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3answers
1k views

Do AFCI and GFCI protect against cheap equipment and bad wiring?

Generally I only buy electrical fixtures (lights, fans, etc.) from a reputable seller out of concern for fire risks, but if AFCI breakers and GFCI receptacles are installed, would that eliminate any ...
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1answer
53 views

AFCI breaker issue

I finished my basement and installed an AFCI breaker for my outlets. I have 12 outlets on the breaker. I passed all electrical inspections and all seemed well. I had used some of the outlets with no ...
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2answers
91 views

AFCI - worth installing and not just GFCI?

How worthwhile is it to install dual-function CAFCI / GFCI outlets rather than going with ones that are just GFCI? Is it a significant increase in safety factor?
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2answers
829 views

Is it possible to tell from labels if the breakers are AFCI / GFCI in the main panel?

I'm deciding if I should upgrade my main panel, and one of the input I want to understand is how different is this panel from modern code requirement. From the photos below, is it possible to tell if ...
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1answer
81 views

AFCI receptacles vs GFCI receptacles for non-grounded outlets

I'm replacing a few 2-prong receptacles in an old house, and all these outlets do not have ground wires. Cost for rewiring is too much and I'm thinking about using GFCI / AFCI receptacles instead. My ...
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4answers
111 views

Wire at the end of the circuit activates my tester at about 12-14 inches away

Have a new circuit in the basement that includes a dimmer switch and 4 recessed lights, in addition to 6 outlets. The switch and the lights are at the end of the run. The order is:: panel > AFCI ...
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3answers
211 views

New Home: daily, random, multiple AFCI breakers tripping

We have a brand new home in Puget Sound which we moved into 2 months ago. We are plagued with constant, random, tripping of multiple AFCI breakers on a daily basis. Some days, just two or three ...
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1answer
175 views

Wiring a blank face afci, gfci and a regular outlets in a circuit, made a loud noise in gfci box

I've a new basement kitchen 20amp circuit (with regular 20 amp breaker) that has a blank face AFCI (near the panel), GFCI outlet (first outlet in the kitchen) and regular outlet at the end (used a 15 ...
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2answers
156 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, ...
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1answer
166 views

Microwave trips the AFCI almost every time it is used

Our new microwave trips the AFCI almost every time we use it. Electrician says it is drawing too much power and we should return it. Samsung over range Microwave 120 volts 1.5 kw AFGI 20 amp
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2answers
115 views

MWBC for split kitchen receptacle

When installing a split receptacle in a kitchen, where the top and bottom are each their own circuit, is there any way you can use an MWBC, or is your only option to run two normal circuits with two ...
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3answers
121 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 ...
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2answers
530 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 ...
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1answer
76 views

Running new fridge line, get regular breakers, AFCI, combo with GFCI, GFCI outlet, etc?

My fridge (2017 GE upper double doors 1500 W, 145 W icemaker) is now on part of a four-outlet circuit with a microwave. An electrician is going to run a new circuit to the fridge only. He said I can ...
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2answers
63 views

Outlets and lighting on covered patio - 240V to 120V

I have installed a covered patio and would like to add lights and a couple of outlets. The current set up is a breaker out there that was set up for a potential AC hookup; it is fed by a 10gauge wire ...
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1answer
151 views

Paint on stranded copper wire twisted together with a wire nut -- dangerous?

Putting new light fixtures into an old house. Wires are stranded copper with a little paint on some of the stranded copper part. Normally I'd cut it off and expose a little more wire, out of an ...
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3answers
167 views

Are dual-function AFCI/GFCI breakers less effective than single-purpose GFCI breakers?

I have a house with old wires (cloth) that lack ground. I've been advised that we can install GFCI breakers on those circuits to help protect against the lack of ground. But since the wires are cloth, ...
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0answers
285 views

Eaton AFCI/GFCI breaker is only blinking once when turning it on

Model: CHFN120A1CS Description: Eaton CH arc fault / ground fault circuit breaker, All-In-One, 20A, 10 kAIC , Single-pole, 120V, pigtail, 3/4" AFCI/GFCI I bought two of these breakers and ...
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1answer
264 views

AFCI breaker trips on the second start of table/miter saw

I recently purchased a new table saw and miter saw and they are tripping my AFCI breakers. Curiously, each saw starts up and runs fine the first time I try it and I can stop it without tripping the ...
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92 views

Does a GFCI also protect against arc faults?

I have an old house, the electrical cabling only has two wires with no ground wire. When I bought it years ago, I had an electrician in to look at it, and they put GFCI blank-face receptacles on every ...
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3answers
4k views

Bosch Drawer Microwave causes ARC Faults

I have a brand new Bosch Microwave (model: hmd8451uc) installed as the only device on the entire circuit. Anytime I use the Microwave on this circuit, it triggers the breaker's ARC Fault. Breaker (...
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2answers
107 views

Can AVR or loose speaker wires cause AFCI to trip?

I have a newly constructed ADU and the AFCI breaker for the plug my AV system is in keeps tripping. We've replaced the breaker twice with no change and checked all the internal wiring. I had a Denon ...
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0answers
26 views

240 V AFCI substituting two 120 V not AFCI breakers

Could 240 V - 20 A AFCI breaker be used to supply power to two 120 V - 20 A circuits requiring AFCI protection? Recently wired to two separated 120 V 20 A non AFCI breakers but with common neutral?
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1answer
125 views

Are you supposed to leave the pigtail lead on an GCFI / AFCI breaker curled up?

Here's an example of the kind of breaker I'm thinking of: They come with the lead neatly curled up. Is this curl meant to be maintained for some reason once the breaker in installed? Or is it just a ...
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1answer
288 views

Smoke detector wiring - black wire in 3 wire appears to be damaged. Can I use power from AFCI circuit to power but use red wire to interconnect?

I have ~10 smoke alarms (one per bedroom, one per hall). Somehow the last one isn't working. The green light didn't go on. I've done some troubleshooting - swapped the connectors and swapped the ...
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1answer
195 views

AFCI Compliance with Multiple First Outlets on [Multiwire] Branch Circuit

I've pulled a MWBC into the crawlspace of my house, with one phase supplying outdoor GFCI receptacles and the other phase supplying nothing so far. The conductors are enclosed in a combination of all-...
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3answers
362 views

AFCI breaker - ruined by fridge?

I have a house that is just under 2 years old. My 2 year old GE Profile fridge (model PWE23KSKJSS) is hooked up to a dedicated circuit that runs off a 20 AMP Arc Fault breaker. There is nothing else ...
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1answer
97 views

AFCI trips when adjacent breaker is switched on

I added 2 separate circuits to a small space on the first floor. Both circuits were AFCI/GFI protected in the breaker panel. Both circuit home runs ran to one junction box before splitting. 1st ...
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2answers
67 views

Is my AFCI outlet to blame for a trip when continuing a circuit outdoors due to moisture?

I have an AFCI outlet in my foyer, and the circuit continues through that outlet and out to the porch for an overhead light above the front door, and then past that to the front of the house for an ...
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1answer
373 views

How to find a neutral to ground short on my main panel

I've just installed a subpanel in my attached garage. The rough in has passed inspection, however my main panel has standard breakers and has never had fault finding interrupter breakers in it, and ...
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1answer
47 views

Is AFCI required for detached workshop subpanel?

As I read the 2014 NEC 210.12 AFCI protection is only required for a "dwelling unit", which would not include a detached workshop. Is that interpretation correct?
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1answer
886 views

Breaker for 240V baseboard heater, do I need GFCI/AFCI?

I have an old electric 240V baseboard heater. Currently, it is using 2 single pole 20 amp breakers. I am going to change that to a 1 double pole breaker. No neutral is used. Is GFCI and/or AFCI ...
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1answer
52 views

When an AFCI or GFCI breaker is tripped or turned off does it break the neutral line also?

When an AFCI or GFCI breaker trips or turned off does the neutral on the circuit break from the bus bar?
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1answer
139 views

Do AFCI breakers interfere with any shop equipment?

I'm setting up a workshop and have several tools planed which I've heard don't get along with Arc Fault Interrupters. I don't know if this is true or just something people tell themselves to get out ...
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1answer
104 views

Is it possible/recommended to use AFCI/GFCI breakers when replacing subpanel?

I'm replacing my old subpanel. (It was from Federal Pacific.) I'm not rewiring my home. And I understand that I'm not required to use AFCI/GFCI breakers. Is it possible to use AFCI/GFCI breakers with ...
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1answer
68 views

Is it required to use AFCI/GFCI breaker when replacing subpanel?

I'm replacing my subpanel at home. My jurisdiction adopts NEC 2017. When replacing a subpanel, is it required to have CAFCI on all circuit breakers for all 120V circuits? When replacing a subpanel, ...
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2answers
487 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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2answers
142 views

Refrigerator on GFCI is tripping other AFCI breakers in the house

This is going to sound really weird, but it has been going on for 6 years and the electricians that wired our house spent multiple days trying to figure it out before we found it was definitely the ...
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2answers
693 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....
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1answer
107 views

My GFCI/AFCI 20a kitchen socket warning lights are both flashing

Hope someone can help. All my outlets in my kitchen work, but my two GFCI/AFCI 20A outlets occasionally and utterly randomly will flip and for the most part the AFCI light on the outlet will flash, ...
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1answer
84 views

Should I use DF (AFCI + GFCI) breaker for circuit sharing bathroom lights?

I have a bathroom which shares a lighting circuit with other living areas. In California this is required to be AFCI protected, but not required to be GFCI protected (receptacles are on a separate ...
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2answers
74 views

Is AFCI a requirement outside the United States?

I have been asked to come into a site (outside of United States; Central America to be specific) - but one of the personnel there asked about NEC compliance; specifically AFCI. How can I educate ...
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1answer
256 views

2 AFCI Breakers Tripping - One instantly and the other after a few minutes

I have 2x 15amp AFCI Siemens breakers, both are tripping. One breaker would trip instantly and the other one after a few minutes. Nothing new was plugged in into these circuits. It just happened out ...
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245 views

No power at bathroom outlets

Recently moved into a new house. First thing I did was go to the panel and, tediously, went through each breaker to make a detailed master breaker list. After doing so I noticed that my outside ...