Installing a light fixture or outlet in the ceiling requires an electrical junction box to hold the wire connections and the fixture or device.
Ceiling fixture box installation.
Push the box into the hole in the ceiling until the lip of the box is flush with the drywall.
Installing a ceiling electrical junction box.
Most ceiling boxes are large enough.
A grounding pigtail was added using number 14 wire and a 10 32 green ground screw.
Number 10 x 1 5 sheet metal screws were used to secured the pancake box to the ceiling joist.
The box is grounded through the correct use of the cable connector and the bx armor.
Junction boxes typically hold up to 50 pounds.
Install a plastic old work ceiling junction box if your fixture weighs 10 pounds or less.
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Check the label to make sure the box is designed to support more than 35 lbs.
An easy solution is to install a fan brace box available from home centers and hardware stores that s designed to be installed without cutting any additional holes in your ceiling.
The nec dictates how many wires and clamps you.
Before you begin make sure your junction box can support the weight of the new light fixture.