Cable gland that will accept cable with larger diameter pre-fitted RJ45 plug...?

[slicendice]

I'm fitting a ReoLink security cam system at home and one of the cameras needs to be mounted on the wall, just under the rear upstairs window. The camera (PoE) is pre-wired with a female RJ45 socked, so I want to run a cat6 cable down the wall from the loft into a junction box on the wall, then feed the camera cable into the junction box where they'll be connected. As it's an outside camera, the junction box is watertight (IP66) and therefore where the cables enter the junction box also needs to be watertight as well.

I've got some M20 cable glands (https://amzn.eu/d/ec3K2To) but the problem is the hole in them isn't big enough to take the RJ45 ethernet plug from the camera:

The RJ45 ethernet socket is about 18mm in diameter, but the hole in the gland is about 12mm, so there isn't a cat in hell's chance of getting it through.

Are there any kind of cable glands available that might be able to handle this? I did find some split cable glands online (that open out so you can lay the cable in them, then snap them shut, without needing to push the socket through), which would be ideal but there don't seem to be any for a single ethernet cable that fit into a 20mm hole in the junction box.

Would greatly appreciate any suggestions...

 

[JohnW2]

The RJ45 ethernet socket is about 18mm in diameter, but the hole in the gland is about 12mm, so there isn't a cat in hell's chance of getting it through. .... Are there any kind of cable glands available that might be able to handle this? I did find some split cable glands online (that open out so you can lay the cable in them, then snap them shut, without needing to push the socket through), which would be ideal but there don't seem to be any for a single ethernet cable that fit into a 20mm hole in the junction box.

There are big ones out there, but you would probably then have to do something to deal with the fact that, if it is big enough for the plug to go through, it will be far too bit to seal onto the cable. For example, this 40mm one from CEF (click here) - which, as you can see, is said to have a 'cable entry' of 22 - 32mm.

Kind Regards, John

 

[slicendice]

Thanks John...but yes, it looks like that's only suitable for 22-32mm canoe...cat6 is about 6mm!

 

[Sureitsoff?]

Cable glands for cables with connectors

www.4most.co.uk

there was a thread about this scenario some time ago as well

Cable glands for cables with connectors | icotek

Split cable glands with metric threads for cables with connectors. Protection class up to IP66 / IP68 / UL type 12 / 4X, very quick and simple assembly.

www.icotek.com

https://www.icotek.com/en-gb/news-service/sample-kits#Split cable glands get a free sample here......

 

[EFLImpudence]

I did find some split cable glands online (that open out so you can lay the cable in them, then snap them shut, without needing to push the socket through), which would be ideal but there don't seem to be any for a single ethernet cable that fit into a 20mm hole in the junction box.

Then get un-split ones the correct size and split them yourself.

As it's an outside camera, the junction box is watertight (IP66) and therefore where the cables enter the junction box also needs to be watertight as well.

Enter the cable at the bottom of the box so it does not have to be 100% watertight.

 

[hllns]

Reterminating the RJ45 plug is going to be less hassle than all of this even if it takes a number of goes.

 

[Sureitsoff?]

And if you want to make sure a junction box is waterproof you could use this stuff

Magic Gel IP68 300ml | Toolstation

Low viscosity, non toxic potting compound with no shelf life. Re-enterable even after long periods. • Fast cross linking (<10min) and cross links at sub zero temperatures • Gives protection degree greater than IP68, fully submersible Operating temp: -60 to +200°C. Dielectric strength...

www.toolstation.com

 

[Tigercubrider]

I really miss 35mm film cans. They were so useful for stuff like this.

https://www.amazon.co.uk/LUCY-WEI-Canisters-Geocaching-Accessories/dp/B07ZDBGBXW/ref=asc_df_B07ZDBGBXW?tag=bingshoppinga-21&linkCode=df0&hvadid=80814201147393&hvnetw=o&hvqmt=e&hvbmt=be&hvdev=c&hvlocint=&hvlocphy=&hvtargid=pla-4584413743271885&psc=1

 

[JohnW2]

Thanks John...but yes, it looks like that's only suitable for 22-32mm canoe...cat6 is about 6mm!

Yes, but that's a problem you will inevitably have - if a gland is big enough for the plug to go through, it almost certainly will be too big to tighten/seal onto the cable - so you'll have to 'seal' it somehow yourself - even if only with silicone.

Kind Regards, John

 

[JohnW2]

Then get un-split ones the correct size and split them yourself.

That's fine for the 'sealing ring' (I'm sure that most of us have done that with grommets) - but the hard plastic (threaded) moulding would also have to be split (to get plug through), after which I suppose one would have to try to glue it back together (leaving the thread 'cable').

Kind Regards, John

 

[Sureitsoff?]

I got about 50 old 35mm film cans from a local photo processers. They had hundreds and as far as they were concerned I could have taken them all. So find your local one and go in and ask.