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Questions tagged [junction-box]

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

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1answer
22 views

How to attach a doorbell transformer to a plastic junction box?

My son's doorbell isn't working, I'm not getting any voltage, and I traced the wiring to the transformer located in the basement behind a finished ceiling used for a light fixture. I would like to ...
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2answers
50 views

Is my 2-gang switch box over-full with 5 cables?

I am installing a dimmer, and I thought there were a lot of wires in this box. It looks like there are 5 cables into a 2-gang box. I tried to draw a little diagram and attach a photo to make it ...
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1answer
129 views

What is the best way to handle house wiring cables with short sheathing?

I'm replacing a couple switches in a bathroom with smart switches and ran into a problem. The previous owner redid the bathroom and the switch box in question had 5 Romex cables (four 12/2, one 12/3) ...
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1answer
71 views

safely de-energizing a junction box so that I can permanently cover it up

I have a junction box in my ceiling that is controlled by a single light switch. I no longer want to use the junction box or have it exposed and I'd like to cover with drywall-- much preferable to a ...
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1answer
41 views

Will this ceiling fan box replacement work in old work hole?

I have had a hanging light fixture in the middle of the living room which I now want to replace with a ceiling fan+light. Nothing huge and fancy... but a hunter nonetheless. The old pan box was, old (...
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2answers
115 views

Garage wiring puzzle

I'm trying to figure out the wiring in my finished garage. It has two ceiling junction boxes, with attached porcelain lights, and three wall outlets. I'll say up front that all of this was done ...
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7answers
3k views

Outlet screwed directly into stud

I was replacing old outlet in my house and came across an outlet that is screwed directly into the studs. Also the stud and the junction box were cut to fit the outlet. The new outlet is too big to ...
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1answer
56 views

Separating 12-3 wire from panel to feed a bathroom fan and light

I am replacing an existing heater, light, night light, exhaust fan unit with a new unit that only contains a light and exhaust fan. The existing wiring has a 12-3 coming straight from the panel with ...
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1answer
68 views

Can you mount a plastic junction box to metal studs?

Inspired by this answer Forget about plastic boxes, they are a wild misfit. They are generally kitted up to nail to wood joists. Can't nail to a steel joist. For a standard "new work" box, I ...
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1answer
47 views

How can I install an exterior porch light where there is no junction box?

I live in an older house with small, exterior porch light fixtures outside 3 doors. Those fixtures need to be replaced. When I pulled the first one off, I found 2 wires coming thru the wall - no ...
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5answers
126 views

Using non-metallic cable with this metal box having armored cable attached?

I'm planning to using this existing outlet to add an additional outlet for a TV directly above. The kit I purchased has a plastic old work receptacle box. Can I use building wire (Romex) into this ...
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2answers
60 views

Can I install NM cable, junction boxes on attic rafters

I'm replacing knob-and-tube wiring, and plan to add blown-in attic insulation afterward. I figure it would be safer to run NM wire on the underside of the attic rafters than to bury it in insulation, ...
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2answers
675 views

Handybox Extension

Can you stack a handybox with an extension outside of the drywall? This puts the total box size at just shy for 4". I know handyboxes can be used with conduit, but can they be double-stacked in a ...
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2answers
653 views

How to wire up a 240 V oven?

I recently purchased a Whirlpool WOS51ES4ES electric oven from Home Depot with the intention of installing it myself. Our old oven is gas, so I need to run a new 240 circuit. The oven draws 20A. I ...
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2answers
43 views

Vanity light installation using an old work box

I have a vanity light that weighs 5.6 lbs. The old work box I have is rated for 6 lbs. This seems very close to me. Is there something else I should be using?
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3answers
674 views

Are “terminal block” style junction boxes allowed in the US?

In the UK it seems pretty common to see junction boxes with built-in screw terminals that are used only for splicing wires from 2 or more cables together. Typical example: (source) Sample wiring ...
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4answers
3k views

Are these pigtails inside the panel and outside a junction box allowed?

I am concerned about a newer electrical panel's installation, where one of the older load wires, at the main electrical panel, appear to be shorter in length, appear not reaching the desired circuit ...
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1answer
42 views

Any issue with GFCI outlet touching sides of outlet extender?

I have to extend a single gang outlet box to account for added depth from beadboard wainscoting. The box is PVC and so is the outlet extender. The problem is, the outlet is a GFCI and it is very snug ...
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4answers
1k views

Can I wire this light fixture set with the plate mounted directly to the stud?

I'm not an electrician. Light fixture has terrible installation instructions. I bought two. I pig-tailed one. I used 14-2 Type UF for the pig-tail because I didn't have 2' of Romex at the time. In ...
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1answer
21 views

What size junction box do I need for a wall mount with a 3.5 inch base?

I have some wall sconces that have a 3.5 inch round base; will a 3.5 inch round junction box work or do I need one that is smaller, like 3-inches? Do they even make those?
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3answers
75 views

Low Voltage between Neutral and Ground wires in Dishwasher Junction Box

My Bosch 800 series Dishwasher will not function. I plan on swapping the control module. In the junction box, at the terminals, I'm reading 120V between Hot and Ground, and between Hot and Neutral. ...
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4answers
1k views

Is a grommet needed for romex into this metal junction box?

I bought a 6-pack of these LED downlights. The metal junction box has knockout holes to run my 14-2 (with ground) wire. I was surprised that the J-box didn't come with grommets after knocking out the ...
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1answer
83 views

Flush Mounted PVC Electrical Junction Box or alternative ideas to supply two sub-panels

I'm not an electrician, but I am a pretty aggressive DIYer that wants to do things the right way (i.e. I plan on getting a permit and everything inspected but I need a gameplan first). I have a ...
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1answer
79 views

How can I rerun cables along stairs where a wall is being removed?

I want to partially take down the wall that currently serves as my staircase handrail. I will replace that portion of the wall with a cable rail. . The picture above was taken while the house was ...
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3answers
133 views

Adding new 240v 30 amp outlet by tapping into existing NEMA 10-30 outlet box

Here's the situation: House was built in the 1980s. My laundry room has an existing NEMA 10-30 outlet that is not being used since we have a gas dryer. I am thinking about getting an electric car so I'...
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2answers
1k views

Need help wiring two lights from a switch at the end

I am trying to wire two lights in my shed with a switch at the end of the circuit. Power comes from a subpanel on the back of my house and is connected to a GFI outlet. Power then goes underground ...
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2answers
171 views

Adding wires to EMT conduit to add circuits

unfortunately, the kitchen wiring in our new condo is severely outdated. Just two circuits; one 15amp for lights and one 20amp for fridge, microwave, gas stove and oven, garbage disposal, dishwasher ...
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2answers
80 views

Light junction box cover does not conceal the box opening

I recently replaced a hallway ceiling light with a pendant, only to find that the supplied canopy was smaller (5") than the hole previously cut in the ceiling (6"). I'm hoping someone has encountered ...
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2answers
5k views

How can I add a recepticle to this junction box full of push splices?

This is a picture of the junction box with all the wires. I've just never seen a junction box with this many wires. I'm brand new at DIYing electrical stuff but I'm fixing my attic up into a bedroom ...
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1answer
91 views

How to remove old pancake junction box (metal brace, lathe and plaster cieling)

I'm trying to upgrade my ceiling electrical boxes for ceiling fans. The house is from 1935 and lord knows when the electrical work is from, but it's old. Got up in the attic to get the old box out ...
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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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1answer
93 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
81 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
286 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 ...
2
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2answers
100 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
41 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
103 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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1answer
159 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
47 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 ...
1
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2answers
96 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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2answers
71 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
30 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
242 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
76 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
166 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
178 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
458 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
174 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
59 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
85 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 ...