Outdoor Junction Box with wire from back

[DJDJDJDJ]

Hello,

I am looking for an outdoor junction box for a night flood light. Most boxes I see have openings from sides of the box only. I would like the junction box to be installed on top of the wire coming out from the wall and have one wire going out from the top to light. Any ideas which box would be suitable?

Thank you.

 

[telectrix]

wiska boxes, but you'd need to drill the back entry hole, then seal between box and wall with silicon or some other sealer.

 

[DJDJDJDJ]

Great. Thank you. Didn't know if they made any with a back entry hole that was weather proof. If I have to drill my own and seal, then no problem.

 

[SparkyChick]

I use a one entry conduit box, glue a short length (just long enough to fit in two fittings) of conduit into the hole and then glue a female converter onto that and put a gland in the end. If you've got good quality PVC cement knocking around, this may be cheaper and seems to work just as well. Drill a hole in the back and then ring it in sealant and screw it to the wall.

 

[Octopus]

Great. Thank you. Didn't know if they made any with a back entry hole that was weather proof. If I have to drill my own and seal, then no problem.

And as you plan to exit upwards don't forget to drill the drain hole

 

[DJDJDJDJ]

I use a one entry conduit box, glue a short length (just long enough to fit in two fittings) of conduit into the hole and then glue a female converter onto that and put a gland in the end. If you've got good quality PVC cement knocking around, this may be cheaper and seems to work just as well. Drill a hole in the back and then ring it in sealant and screw it to the wall.

Thank you very much.

 

[SparkyChick]

I wouldn't use this method for top entry... in fact I wouldn't use top entry at all outside. Always try for bottom entry to minimise the chances of water ingress.

 

[DJDJDJDJ]

I wouldn't use this method for top entry... in fact I wouldn't use top entry at all outside. Always try for bottom entry to minimise the chances of water ingress.

Thank you Sparky. I will try and see if I can move things around.

 

[telectrix]

top entry would be OK if box was mounted under soffit. otherwise bottom entrty with drip loop in cable is advised.

 

[DPG]

I wouldn't use this method for top entry... in fact I wouldn't use top entry at all outside. Always try for bottom entry to minimise the chances of water ingress.

<Juvenile comment removed on legal advice>

 

[Delboybully]

Rear entry hole

IP65 Adaptable Box 80 x 80 x 52mm - https://www.NoLinkingToThis/p/ip65-adaptable-box-80-x-80-x-52mm/14556

 

[a-z electrics]

BG double weatherproof socket.. they have entry holes top bottom and side. Can't see a problem if you use rated compression glands but side entry then turning upwards would be preferable I suppose.

 

[a-z electrics]

Oh sorry I misread the original.. Yes wiska box with compression glands no problem.. choose your size and colour!

 

[telectrix]

BG double weatherproof socket.. they have entry holes top bottom and side. Can't see a problem if you use rated compression glands but side entry then turning upwards would be preferable I suppose.

but OP wants rear entry so the cable coming through the wall is not shown externally. a short length of 20mm pvc consuit throuh wall and protruding 1/4" into the box or with an adaptor, coupled with sealant between box and wall is my preference

 

[Dave OCD]

Where the situation permits I'll sometimes fit a 20mm nylon gland if the hole behind the fitting is big enough to accept it.

 

[Deleted account]

At tech talk couple of days ago and wiska had stand with j/b that has rear entry with film pierce holes. They've been long awaited. Much better that siliconing back of j/b like I've had to do up til now.

 

[a-z electrics]

but OP wants rear entry so the cable coming through the wall is not shown externally. a short length of 20mm pvc consuit throuh wall and protruding 1/4" into the box or with an adaptor, coupled with sealant between box and wall is my preference

Agreed! A bit of silicone squirted into the wall holeafter conduit and cable fitted will work a treat. Use the right size drill bit for the conduit and it will be nice and tight. I am a big fan of the Wiska box.. you can screw the gland straight into them, you don't need a backnut. If no junction inside the box it will be 100% reliable. If need to join wires inside, use wago terminals.

 

[a-z electrics]

At tech talk couple of days ago and wiska had stand with j/b that has rear entry with film pierce holes. They've been long awaited. Much better that siliconing back of j/b like I've had to do up til now.

Oh that sounds good! Must get some.. are they in severe sizes?

 

[telectrix]

Moulded & Weatherproof Boxes - Meeting IP66, IP67 and IP56 Glands - https://www.tlc-direct.co.uk/Manufacturers/Wiska/Boxes_Adaptable_Moulded/index.html

 

[Deleted account]

Oh that sounds good! Must get some.. are they in severe sizes?

Sorry. Not sure.
I just saw one size on show, but more than likely they will be in all sizes. I would presume they are going to have the rear entry as standard in all there boxes.
Don't quote me on that, I'm guessing.