Questions tagged [junction-box]

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

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36 views

Junction box in dishwasher bay

According to the NEC, is it permitted to put an electrical junction box inside a dishwasher bay behind the actual dishwasher? If it ever had to be reached, which I hope is never, the dishwasher ...
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45 views

Are rubber grommets OK for junction box?

I'm looking at options for lighting my basement workshop. I really like these "canless" ones that would mount in the suspended ceiling. Interestingly, some come with junction boxes, but MANY do not--...
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Old house. Front porch light wiring is piped so need to know how to install an outlet box. Pic attached

I removed the old front porch light and found that the old wiring is being run through a pipe that sticks out about 1/2”. I can’t install the new light because it needs to flush to an outlet box. ...
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Why is this 50's junction box so immobile?

This 50s Junction box does not budge. I want to replace both the box and the wire, but neither is moving. The wire won't move because it runs horizontally before the vertical. I'd like to remove the ...
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How do I make my doorbell not connected to a light switch?

The transformer for my wired doorbell is connected to a light junction box. The doorbell works just fine if the light (which the transformer is connected to) is turned on using the wall switch. If the ...
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1answer
107 views

Is this a safe way to extend this wiring?

The picture below is just above our cooker extractor hood underneath the first floor floorboards. I need to bring through the 140mm diameter ducting from the extractor hood. I need to do this in the ...
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Using drywall screws for electrical boxes?

I am installing the following items: and I am using regular 1 1/4" drywall screws to secure them. Is there any concern in regards to shear strength or rot that would make me regret using drywall ...
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1answer
91 views

Can this junction box wiring be used for a duplex receptacle?

! Hi - this junction box was covered with a plug cover That had no openings in it, just a blank cover over the wall box. As you can see from the image we have two cables entering the box from the top ...
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1answer
98 views

Help me, please, put together some junction boxes

I’m putting together some junction boxes for domestic lighting using RS own brand DIN terminals in a suitable enclosure (home automation later would favour grouping the wiring into a limited number of ...
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1answer
66 views

Fastening ceiling box to side of joist

Is there such a ceiling junction box that will allow me to attach it to the side of a joist from inside the box? NB: I have a finished ceiling. I know I can install a support bar and attach a box to ...
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70 views

adding light to 3 way switches

My daughter's stairway has a ceiling light halfway down but basement landing area. It's dark... it needs light. I installed one of the new LED lights in the suspended ceiling, and ran its feed over ...
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How can I remove a cable from a junction box?

I have a ceiling junction box in my garage that has four armored cables coming into it. I want to remove one of the cables as I'm not using it. I don't have access to the back side of the box, because ...
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67 views

Two circuits in same junction box?

Can two different circuits go through the same junction box? That is, two cables enter from different breakers and they tie to cables exiting, but the two circuits aren't connected except for the ...
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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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52 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
138 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
80 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
46 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
205 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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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
148 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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99 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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60 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
212 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
114 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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677 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
686 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
46 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
785 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
49 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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22 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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101 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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2k 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
112 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
81 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
320 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
247 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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93 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
119 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
95 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
93 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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524 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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122 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
44 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
107 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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