Removing a Medicine Cabinet Light Installing a New Fixture
How to Install a Wall Fixture Electrical Junction Box – If the light fixture is a bar type then a larger junction box can be installed off center if the fixture will allow a hole to be drilled in line with the wall box for the wiring to pass through into the wall box for the connections.
Installing a Wall Fixture Electrical Junction Box
Electrical Question: I am trying to replace and old bathroom lighting fixture which is attached to a medicine cabinet.
- It is one piece and the whole unit has been removed.
- The medicine cabinet will be replaced by a regular mirror and I want to install a new light fixture and center it above the mirror.
- There is a stud where the mirror must be centered.
- There are water pipes running along either side of the stud.
- I was told to use a pancake junction box but my new fixture has 4 black, 4 white and a ground wire.
- I’m sure it would be a code violation to try to shove all those wires into the pancake.
- The pancake is 4″.
- What is the maximum number of wires that can go into the pancake?
- Is there another alternative?
It seems I may have to look for a different fixture with fewer wires.
This electrical question came from: Stu, a Homeowner from Meriden, CT
See more about Home Wiring for Connecticut
Thanks for your electrical question Stu.
How to Install a Wall Fixture Electrical Junction Box
- The links below will give you all that you need, but typically the light fixture has an area where the wires from the wall pancake box can be routed into and the connections can usually be made inside the light fixture, otherwise your right, the pancake box is not large enough.
- If the light fixture is a bar type then a larger junction box can be installed off center if the fixture will allow a hole to be drilled in line with the wall box for the wiring to pass through into the wall box for the connections.
- If this is done the hole should have an insulated bushing installed to protect the wiring.
The Following will assist you with your Bathroom Electrical Wiring
Electrical Wire for the Home
Complete listing of electrical wire types and parts used for home projects with electrical code information serves as selection guidelines.
Electrical Junction Boxes for Home Wiring
- Understanding electrical junction boxes and what they are used for. Home electrical wiring is the process of installing electrical wire to a location that will serve electrical devices or an appliance.
- One very important component is the box where the wire will be installed. The type and size of the home wiring electrical boxes will depend upon the circuit size, application and its location.
How to Install Bathroom Electrical Wiring
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Fully Explained Photos and Wiring Diagrams for Bathroom Electrical Wiring with Code Requirements for most new or remodel projects.
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This is a testing tool that I have had in my personal electrical tool pouch for years, and is the first test tool I grab to help identify electrical wiring. It is a Non-contact tester, [amazon.com], I use for the detection of Standard Voltage in Cables, Cords, Circuit Breakers, Lighting Fixtures, Switches, Outlets and Wires. Simply insert the end of the tester into an outlet, lamp socket, or hold the end of the tester against the wire you wish to test. Very handy and easy to use.
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