What part do I need to seal up a junction box when I have an Ethernet cable coming out?

[Bmr4life]

I have one of these round boxes but the wire needs to exit out the side. How do I seal that hole up with the wire?

 

[sebastiantombs]

There are weatherproof connectors that a compression with a rubber grommet to compress around the wire. SJ connectors are what they're called. I use those with Duct Seal, a flexible, waterproof, putty used by electricians. Both are available at most "big box" home improvement store, Lowes or Home Despot.

 

[Bmr4life]

Thanks. I've been using duct seal for the house penetrations.

So these SJ connectors seal tight on an ethernet cable? Also, do I need to cut the connector off?

 

[Tom S]

To get one small enough to pass through the appropriate rubber bushing you may well have to crimp on a new end. The Dahua boxes I have purchased came with a similar type piece just made out of white plastic.

 

[sebastiantombs]

Well, given that the hole is made for 18/3 or 16/3 SJ cord, typically, they don't crimp tight which is why I mentioned Duct Seal. An RJ connector, let alone one with a WP housing on it won't fit through it. Lowes and Home Despot may, or may not depending on local demand and inventory, have them in stock. Amazon may be a better choice or a real electrical supply house.

 

[Bmr4life]

In that case I can just dill a hole in a plug and use duct putty with it. Thanks again.

 

[sebastiantombs]

True, but then you lose the advantage of a rubber lined bushing to prevent chaffing of the cable. Alternately, add a few wraps of good electrical tape around the cabe, at the point where the bushing is, to let the bushing clamp down on the cable

 

[ctgoldwing]

In that case I can just dill a hole in a plug and use duct putty with it. Thanks again.

You might want to consider silicone rubber. It pretty tough stuff and if you make a 'grommet' shape out of it around your cable it will help keep the cable from moving at all, provide a cushion between the hole edge and not be prone to falling out like duct putty.

I am in the middle of an outdoor project adding 2 more cameras and 4 IR illuminators in the woods.
I found a product called 'Liquid Electrical Tape' by Permatex:
Amazon.com: Permatex 85120 Liquid Electrical Tape, 4 oz: Automotive
I used it to seal the wires going through the compression fittings of my boxes. Messy stuff but it sets up with a nice seal.