Questions tagged [junction-box]

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

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1answer
64 views

Grounding metal electrical boxes

I would like confirmation on the following: Is any metal box automatically grounded if it is supplied by an armored cable (without a ground wire) that is properly connected to the box and back to the ...
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1answer
62 views

How do I add a receptacle outside off the porch light

I put in a gazebo in the back of the house and I want to install a receptacle from the only electrical source which is a porch light. I could just run some wire thru the base of the light and run it ...
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3answers
62k views

What is the proper way to install a junction box above a dropped ceiling?

I'm doing some remodeling in my basement and part of that work involves moving a switch. When I was tracing the wires for the switch I found this above my dropped ceiling: Now, I'm no electrician, ...
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5answers
2k views

Ceiling fan electrical box missing female screw holes

I have an existing electrical box that appears to support ceiling fan installation but it is missing the 2 female screw holes I'm used to finding in these boxes. Is there some sort of intermediate ...
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3answers
1k 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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3answers
4k views

How can I install an electrical plug without a stud nearby?

I need to place an electrical outlet where there is no stud. Where can I find outlets to do this?
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1answer
321 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
84 views

How can I mount a light to a square junction box?

In my entryway, there is a lighting fixture box that is sticking out of the ceiling drywall. (See attached image below) The box is 4 inch by 4 inch. I assume that it came with some kind of ceiling ...
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1answer
64 views

Does a cover exist for a 3.5 inch round electrical box?

I have a 3.5 inch round electrical box in the garage that is being used as a junction box. The inspector says that it has to be covered. However, I am unable to find a 3.5 inch pvc cover for this box. ...
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1answer
168 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
100 views

How to move a junction box?

Hi i want to move a junction box that's behind my back splash into a cabinet but so i should be able to access it as needed according to the code but the wires from the top and bottom are exact so i ...
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Can an electrical junction box be closed and covered if not needed?

Can an octagon fixture box that was also found to be a junction box, be closed and covered over in the ceiling after remodeling. Box not needed.
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2answers
91 views

I opened a light switch and found an unterminated wire in the junction box. Is this unsafe?

I switched of the main circuit breaker to the house and opened up a light switch to see if I had a neutral wire, so I could buy a smart switch. But when I took off the plate I found what appears to ...
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2answers
36 views

Adding a ceiling fan to circuit of light fixtures

I have 4 recessed 40 watt lights in the ceiling of the living room. They are all on the same switch (circuit). Can I add a ceiling fan to the room and splice the conductor into one of the 4 J boxes so ...
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1answer
261 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
119 views

Can I use the same junction box for two appliances?

Complete noob here. I'm finishing building my kitchen and the last part - the wiring of electrical oven and glass cooking plates, is presenting me with some challenges. I am located in Germany. ...
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2answers
43 views

NM cable from wall box to dishwaster

I need to connect my dishwasher to an electrical box in the wall under the sink but it is recessed so the cable must come out through the front plate and not side knockouts. Out of the same box will ...
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2answers
67 views

Romex exiting junction box just below 8 feet

I am installing new outlets by drilling up from the garage between the wall cavity and fishing romex up. As seen in the picture: I had my first inspection and the inspector called out that the ...
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1answer
102 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
127 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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2answers
69 views

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
28 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
119 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
70 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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2answers
36k views

How to tell if a ceiling junction box is braced to hold the weight of a ceiling fan?

My new home is almost done being built, and one of the extras I asked for was for two of the rooms to have junction boxes in the ceiling suitable for hanging a ceiling fan in the future. The light ...
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1answer
286 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
102 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
53 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
68 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
356 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
104 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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2answers
85 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
119 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
31 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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2answers
699 views

Metal electrical box extenders

I have a metal box and conduit outlet in my kitchen where a bar cabinet is going to be installed. I assume it would be way too much effort to rip out plaster and move the box to a new location, so I ...
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1answer
84 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
125 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
517 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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2answers
563 views

Ceiling fan mounting bracket issue

first time poster. I need to replace a Casablanca ceiling fan in my house that we've owned for a year. The house was custom built in 2002. I bought a Hunter ceiling fan to replace the old one, but ...
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1answer
34 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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2answers
25k views

Can I screw a ceiling fan electrical box directly to the joist?

I am putting in a ceiling fan in a bedroom. It is a smaller one approx. 18 lbs. The remodeling-type expander brace failed, so can I just screw one side of the box to the joist? (I cannot access the ...
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3answers
224 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
582 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
514 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
144 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
156 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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2answers
893 views

Bathroom exhaust fan/light combo only fan works

I bought a new bathroom exhaust fan and light combo. It came with two sets of wires, one for the fan and one for the light. It also came with an extra ground for the motor (where should I put that)? ...
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1answer
64 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
1k views

Power wires too short, what to do?

When I see a short wire, what can I do? There are close to ceiling junction boxes on top of the outlets where the wires come from, should I pull the short wire back into them and splice them with new ...
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2answers
98 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 ...