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Questions tagged [junction-box]

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

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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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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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79 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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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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114 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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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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47 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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37 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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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
83 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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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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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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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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148 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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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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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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45 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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35 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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171 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
52 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
37 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
42 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
100 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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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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375 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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Use ring terminals and bolt + screw for main electrical line?

Can these ring terminals be used to extend the electrical line in a house? They would be soldered to the wire and connected with a bolt/screw, something like this: Currently the main line is ...
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366 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
611 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
339 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
160 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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441 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
108 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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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 ...
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2answers
370 views

Should the wiring to my recessed light have a strain relief and a ground wire connected?

I had this can light installed by a contractor. It was not attached to anything, just resting on top of a hole in the ceiling. The cable is not entering through the plastic grommets. There are no ...
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2answers
290 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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3answers
1k views

Are splices required in a junction box?

If I have a conduit with 6 wires (3 separate circuits), and I want them to split at some point, can I send the conduit (A) to a 4-inch square junction box and then send 2 wires to leave the junction ...
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830 views

OK to bundle wires together with colored electrical tape?

I have 3 bundles of 3 12AWG THHN wires each, black-white-green (red tape) black-white-green (blue tape) black-white-green (black tape) these 3 bundles come out of the load center and into 1/2 EMT. ...
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3answers
122 views

Can I split off a 20a with a conduit body?

So I am coming out of my subpanel with 1/2 in metal conduit and using metal handy boxes with NEMA 5-20 for all the receptacles on my two indoor branch circuits. One is dedicated for a window unit AC. ...
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135 views

How to open this electrical junction box?

I have an electric blanket where the insulation has escaped from its clamp. Totally easy fix, as long as you can get into the fitting. But there are no screws or anything. There are three recessed ...
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35 views

How to screw using the holes in this enclosure?

I have this enclosure: I wonder how I can connect some PCB (consider it as a plate where I drill holes) in to the holes from the enclosure (the 6 smaller holes in the bottom, where you can see 5 in ...
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59 views

Need help identifying ground screw

I am installing a chandelier and there is no ground wire in the metal junction box, but there is a screw with a copper wire already running to it. The wire runs up through the box. Is this the ground ...
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3answers
368 views

240V/60A circuit in PVC on the ground

This home has a PVC pipe running from outside the garage, to a pool+spa setup. The electrical circuit seems to be carrying 240V/60A - (primarily for the water heater). It runs on the ground beside a ...
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2answers
123 views

Query: 2 cables in 1 junction box

Please see image A below. Previously attached was a 3-bulb fixture. I have replaced it with a 4-spotlight bar successfully by copying the previous wire configuration. Lacking the background, the ...
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2answers
213 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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3answers
1k views

Damaged Wire Insulation

I opened an electrical box today to a bit of a surprise - a little bit of exposed conductor on one of the wires! As far as I can tell, there is no damage to the conductor (12 gauge). Note that this ...
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3answers
1k views

Ground wire from the junction box

Background: I am a regular DIYer just starting out. My question is regarding the ground wire while installing a chandelier. I have just moved to a new location in Ontario, Canada. The house was built ...
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1answer
196 views

Plastic junction boxes and covers in floor?

Our family room is currently being remodeled to include a raised/tray ceiling. Once the drywall was removed from the ceiling and the plywood removed from the attic floor above the family room, it was ...
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Honeywell Wireless receiver BDR91 blowing out fuses

I have wired 2 wireless relay BDR91 units to a junction box and connected them to a zone valves (1 for heating and 1 for water). I am running S-plan system and for some reason, my fuse keeps on ...
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2answers
521 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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247 views

How to Use GFCI Square Cover?

I have a 4" square box which I'm going to put a GFCI outlet in. I got one of the raised covers with a rectangular cutout for GFCIs. However, the outlet itself doesn't sit flush with the cover. When ...