Questions tagged [junction-box]

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

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How do I seal an electrical box for a ceiling fan?

We recently installed new electrical boxes and hung fans from them. We caulked around the boxes to seal off airflow into the attic. There are several small holes (and one has a medium sized hole) on ...
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1answer
100 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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167 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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32 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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481 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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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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1answer
53 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
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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1answer
315 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
166 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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199 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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43 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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286 views

Dimmer Switch Installation in Multi Gang Box

I want to install a smart dimmer switch in a 3 switch box (which requires neutral). However the one switch I need to replace is one of the simple toggle switches with 2 black wires connected inside ...
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58 views

Running New Electrical Line

I found a junction box under my deck that has grey cable, with each individual wire wrapped in the gray sheathing. So for example, the white wire has the white insulation around the copper wire, and ...
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501 views

Installing new outlet in the middle of an existing run

We're in the process of doing some minor reno in our basement, and we'd like to put our entertainment center in one corner. Unfortunately there's no plug near there, so I want to add one. The ...
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364 views

What type of junction box cover do I need?

We are building a set of shelves to cover up a sewer pipe in my basement. The shelves will have a false back that covers the pipe then have usable shelves in front of it. The only problem is that ...
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953 views

What is the purpose of these removable “collars” on ceramic light fixtures

This fixture happens to be plastic, but all my ceiling juntion box mounted 600w rated light fixtures have a removable collar. I don't see the point in this extra part. Is there some sort of shade I ...