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Questions tagged [junction-box]

A junction box is a container used to enclose electrical connections (junctions).

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Part 2 - What sort of ceiling fan support do I need where I can't find framing?

I am return and resume to work on my ceiling fan in the dining room. Last August of 2018, I tried to put it up but the support bar is different than others. I did not know what to do until I saw a ...
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1answer
22 views

Moving and covering light fixtures in bathroom

I currently have 2 small light fixtures in my bathroom on either side of my mirror above the sink. My plan is to add a new fixture above the mirror and patch/cover the existing fixtures. It's first ...
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1answer
64 views

How do I remove this old metal ceiling junction box?

There is this metal bar over this junction box which also holds a light fixture. There is also 4 BX cables connected to it in which I am trying to upgrade the existing light fixture attached to it ...
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1answer
61 views

Easiest way to connect to a junction box when the wires won't reach?

I got a new attic fan, and the wires won't quite reach to the junction box that the old fan was wired to. What's the easiest way to complete this connection in a code-compliant manner? Everything is ...
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1answer
59 views

Counting Smoke Detector Wires In Junction Box

I want to connect a wire to get power for for a ceiling fan to an existing junction box in the attic that is used right now only for a smoke detector. Box currently has a 12-3 wire coming in, and the ...
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1answer
41 views

Mounting an electrical box to screws drilled into the ceiling

A plastic box junction box shall be mounted to a drywall industrial ceiling with two screws. The box will be filled with many low voltage wires before it is brought to the worksite (making it very ...
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1answer
114 views

Terminating unused wire in breaker box [duplicate]

I have an unused wire that used to be hooked up to the dryer breaker that is "hanging" in the breaker box. What is the correct way to terminate this wire? I don't want to cut it in case we want to use ...
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1answer
53 views

OK to attach a metal electric junction box and armored cable (MC) to underside of subfloor in basement?

Is it OK to attach a metal electric junction box and armored cable (MC) to underside of the subfloor in a basement with an exposed ceiling? Or does it have to be attached to the side of the joists in ...
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2answers
51 views

How should large, stranded ground conductors be connected to metal junction boxes?

Say I have a #6/3 cable being spliced in a metal junction box. How would the (presumably stranded #8) ground wire be connected to the box?
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1answer
60 views

How do I properly align an outdoor light fixture?

I was trying to install an outdoor light this afternoon. Unfortunately the outlet box is interfering with the mounting bracket. I looked around at a few different lights and it looks like I would have ...
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3answers
170 views

Can I use 14 gauge wire on a 20 AMP electrical circuit? [duplicate]

Running 12-2 Romex cable from the electrical panel to a J-box located in attic. J-box will connect two GFCI outlets and extend a 14-2 cable to the ceiling light fixture box, where other 14-2 cable ...
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1answer
74 views

Can I cover an electrical box with tile? [duplicate]

I had 5 outlets moved to under my cabinets. The Electrician put a junction box over the old outlets. I now need to install backsplash. Can the tile guy cover the box with the backsplash?
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78 views

How can I replace the outlets when the boxes are too small?

I need to replace the outlets in my 54 y/o home but the junction boxes are too small to accommodate the new outlets. Is there a way to replace the junction boxes without having to cut a new hole?
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1answer
95 views

how is a blank wallplate attached to drywall

Are blank wall plates normally attached directly to a drywall with screws, or it has to be fixed to electrical box?
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1answer
29 views

Hot line creating circuit with ground

Two receptacles and a sconce -- all sharing a wall -- stopped working the other day. I took everything apart looking for loose connections and found the following: The two receptacles only have one ...
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1answer
72 views

What is this black cylinder on the side of my electrical junction box?

This junction box houses electrical wiring to a light fixture in a closet. The light no longer works and i'm wondering if this black thing is a possible cause.
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2answers
90 views

How should I splice the very short wires for this LED shop light into my 12/2 NM-B?

I'm installing 3 LED shop lights in my basement workshop. I've already run new 12/2 NM-B wire to a few junctions and switches, per light. The attached picture is an example of the final splice I need ...
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1answer
321 views

No Junction Box for Ceiling Light

Today I discovered that (at least) one of the ceiling lights in my house isn't mounted on a junction box. As an added bonus, most of the wiring is fabric insulated copper. You can see the single ...
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1answer
33 views

Junction box for different unit's circuit

If my basement apartment and main unit have each their own electrical panels, can I have a junction box (located on the ceiling) in one unit that belongs to the other unit? For example, can there be ...
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3answers
120 views

How to tap into a light switch whose junction box is already full?

I have a light switch I want to tap into to add another power outlet a few feet away. I believe this switch's junction box is already too full to accommodate adding new wires. I think I would have ...
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1answer
325 views

Can I install a device transformer in a junction box to keep it behind the wall surface?

I'm in Oregon, USA, and trying to figure out a code-compliant way of hiding a wall wart (AC/DC transformer) behind a small device (about 3"x3"; if it matters, the specific device is a smart garage ...
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3answers
200 views

I want to install outlet on existing junction box

I tried to install an outlet on existing junction box as below, but failed because it's too small to put in. I have 3 solutions to think. Remove junction caps and put 2 outgoing lines into backstabs ...
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1answer
129 views

How to organize multiple electrical wires going into an ultra thin recessed light?

I am installing ultra thin recessed light in the basement and it comes with a very small metal box (probably 2x4 in in size). Due to the old wiring of the house, there are 5 wires coming in totally: ...
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1answer
107 views

Junction box above ceiling to add second sub panel from existing sub panel feed

I'm posting this question to determine if there is a safe manner to do this that meets code and isn't a redneck solution. The sub panel in my garage is run off a 50 amp breaker that is in my service ...
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1answer
58 views

Individual conduits for each phase to reduce amount of stud being drilled

I'm trying to do some improvements on an existing structure that leaves me little room for maneuvering. I'll break it down as simply as possible. I have two large PVC junction boxes (completely ...
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2answers
63 views

Remove old light box with a stud and nut anchor

I read a post asking this question, but there is no answer for actually removing the box. I do want to remove the box to install a retrofit recessed LED light. My bungalow was built in 1952. All ...
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2answers
55 views

Will ceiling junction box support fan mounting?

Will current ceiling junction box support fan? Not exactly sure if a fan was mounted to it prior as I recently moved into this apartment. Somewhat older of an apartment and box doesn’t directly state ...
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3answers
406 views

How to splice into existing underground rigid metal conduit below ground and hide junction box?

I have an existing rigid metal conduit run from the service panel to a junction box location that was previously powering an outdoor appliance. The circuit is 20A and running 12 guage wire. The RMC ...
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4answers
2k views

Do the quick connectors in my new bathroom fan need to be in a junction box?

I recently replaced a bathroom extractor fan. The new model uses "quick connect" electrical connectors, where I stick the house wiring into this little plastic device, and apparently that's all! The ...
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1answer
39 views

Need help identifying function of odd looking switch/connection/??? mounted to 2nd story Fascia

This photo is zoomed in on a gang box that is mounted to the 2nd story exterior Fascia of my buddy's log cabin. We are trying to figure out what this is for as neither of us have seen this before. ...
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1answer
88 views

Mounting box slightly offset in ceiling: is there an offset mounting bracket that I can use to mount ceiling fan?

We're having a new house built, and yesterday we went to check out the progress. They've finished drywalling and sheetrock mudding and we noticed that the electrician installed one box off center. We'...
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2answers
199 views

What are the consequences of connecting hot or neutral wires of cables from two different circuits together in a junction box?

Some receptacles in my home required turning off two 15A breakers to kill the power; investigating I found a junction box where hot wires on the two circuits had been connected together. I sorted out ...
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0answers
95 views

Does crossbar need to be flush against junction box?

I have a question regarding installing a chandelier light fixture in my apartment. The light fixture I bought came with a standard crossbar and I originally screwed it flush into the junction box. ...
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31 views

Box mounting point

What are the chances of this setup passing an inspection? 4x4 box is mounted on a stud, relay attached to the bottom 1/2 knockout, transformer will be mounted at the front of the box. This is in ...
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1answer
243 views

Can I use a light fixture box as a junction box for a Baseboard

I would like to know if it's allowed to use an octagonal box currently used for a light as a junction box for two baseboard heater ( I need to relocate the current line). The reason we need to ...
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1answer
59 views

Transformer location

I've got a very basic question - I have a 120V to 24V transformer https://www.functionaldevices.com/products/building-automation/details/TR40VA040/ and on the transformer surface it calls out "install ...
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0answers
374 views

Box needed for outdoor porch light?

I am replacing an old outdoor covered porch light fixture with a new LED fixture. The back of the new fixture plate is only about 1 inch max and needs to be flush with the existing wooden support ...
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1answer
88 views

Run conduit from exterior sconce

We have a sconce on the outside of our brick house on a covered patio currently. I would like to run conduit from it to allow us to place an exterior fan on the same covered porch. My questions: 1) ...
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1answer
86 views

Ceiling light junction box multiple wire detection

I have tried to change a ceiling light and am confused as to why there are so many cables jammed into the box and some of them are burnt. I need some advise as to what to do. I have attached the best ...
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1answer
91 views

Attic Fan Box Vapor Barrier

This past weekend I installed a ceiling fan to replace an already existing light fixture. I had to replace the plastic electrical box from when the home was built in 1992. I am unable to get into the ...
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1answer
153 views

Can I install junction box on a basement rim joint from inside

I am pulling wire from my basement for an outside receptacle. I drilled a hole through the rim joist. To secure pvc pipe from inside, I wanted to install a junction box on inside, and use a metal box ...
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0answers
136 views

Wifi Light Switch won't fit in my electrical box

I am fitting wifi light switches. My back boxes are square metal, but the dimmer switches are all round euro style. Is there a way to utilise these without repairing the wall. Perhaps a converter ...
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2answers
491 views

Are splices made with insulated cable connectors required to be inside a junction box?

I have a need to splice a 6/3 romex and 4/3 romex in my attic. It would look something like this: 4/3 |-- (6/3) new destination -----| |-- (4/3) original destination I am looking at ...
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3answers
815 views

Replacing ceiling fan bracket

I'm replacing an old ceiling fan. The old one wobbled a lot even after tightening the blades and trying to balance it. Right now the electrical box is just a plastic one that appears to be screwed ...
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2answers
1k views

What is the purpose of this grounding screw in a plastic electrical box?

Upon inspecting my light bulb socket in the garage of my new construction home (2018), I found a random grounding screw which wasn't wired to anything but attached to some bar. Does anyone know what ...
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1answer
674 views

Remove old ceiling pancake (pan) junction box, or how to work around bolt in that box?

I'm having a difficult time removing an existing ceiling junction box/pan. There was a nut holding the bolt in the center. I thought the nut was holding the box in place, but even with the nut gone ...
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1answer
317 views

Wiremold Ceiling Fan Box not compatible with Harbor Breeze mounting bracket. How to fix?

I am surface mounting a Harbor Breeze ceiling fan directly to a wooden beam using a Wiremold Metal Ceiling Fan junction box. The wiremold box has two #10 screws which go from the back of the mounting ...
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2answers
1k views

Options for mounting a ceiling fan box directly to interior wooden Ridge Beam

I am tasked with mounting a ceiling fan w/ light in an interior master bedroom that has a wooden ridge beam (covered with textured drywall) going down the center of the vaulted ceiling. Since the ...
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1answer
282 views

Can I use a gutted sub panel as a junction box

I am going to be replacing my all in one 100A breaker panel with a 200A panel. The old panel has the ground/neutral bus at the bottom of the box and the wires are cut too short to reach the bus bars ...
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2answers
191 views

Can I cut the protruding conduit to the floor level and cover it with junction box?

I've removed the old island which had the electric range, with the conduit coming from the crawlspace: The junction box was attached to the back of the cabinet holding the range. But the new island ...