Electronics enclosure for mains power plug

I am developping a system to remotely control mains sockets by means of power line carrier signals based on the TDA5051 chip.

I am now looking for a suitable plastic enclosure with 3 prong UK type of plug on one side, to plug into wall sockets, and a receptacle on the other side where various apliances will connect. That is something like a wall charger box. Even if the receptable is not there, I can install it myself later.

Anyone knows were I can get these ? Obviously, price is also something to consider since i will need a number of these!

I Googled "Wall Wart Enclosure" and I found [u]these[/u], but the ones I found have a U.S. plug.

A "line lump" design would be cheaper & mechanically easier... Just buy an extension cord, chop it in half, and stick a box in the middle.

Obviously, price is also something to consider since i will need a number of these!

You can buy an X-10 module for about $20 USD (and an Insteon module for about twice that). I'd be surprised if you can build one for $20.

I'd be surprised if you can build one for $20.

I was planning to build it for about 20 euros plus the cost of the box.
X10 etc might be cheaper but my design can be interfaced on the rest of the home automation system I ve ready built based on RS485 links. I am also building an RS485<>PLC gateway

I Googled "Wall Wart Enclosure" and I found these, but the ones I found have a U.S. plug.

Yes, I also found those too...

Thanks for your feedback..

You could get one of these and rip the already working bits out of it

Enclosure

I used the front part of an extension cord replacement plug like this:

Cut a hole to fit the front (white) part of the plug & glued it in, didn't use the "back shell", surely someone in the UK makes something similar.

I used the front part of an extension cord replacement plug like this:
Wiring Device - Kellems | Hubbell Wiring Devices & Kellems Grips
Cut a hole to fit the front (white) part of the plug & glued it in, didn't use the "back shell", surely someone in the UK makes something similar.

For the receptacle (back) part I thought I could use something like this which is designed to be securely mounted by just making an opening on the box.

The problem is the front plug (male) where I couldn't find anything similar. I am not so sure if just cutting a hole and gluing a part taken from a common mains plug for example will do since this part of the device takes considerable force every time it is plugged or removed from the wall receptacle. In addition, you got to get the materials properly matched to make a good bond with the glue. Usually project boxes are made from ABS while plugs are made of other plastics, flame retardant or even rubberized in some cases. I think it would be best if the ""plug part"' is ready made.

Just one question

How many people are you hoping to electrocute with your "glued" up design. 230V appliances have to tested over and over again and pass vigorous tests to be sold on the UK market

Have you included the cost of all this on top of your design?

How many people are you hoping to electrocute with your "glued" up design. 230V appliances have to tested over and over again and pass vigorous tests to be sold on the UK market

Not sure if you are referring to my design or DVDdoug's comment. Mine certainly has no glued parts.

How many people are you hoping to electrocute with your "glued" up design. 230V appliances have to tested over and over again and pass vigorous tests to be sold on the UK market

Not sure if you are referring to my design or DVDdoug's comment. Mine certainly has no glued parts.

Not so sure either to what extend this " rigorous testing " applies to all those far eastern made products that flooded the EU market these days and they are often picked up by the RAPEX system as potentially dangerous / unsuitable.

Lota of untested stuff from china with false markings.
Thing is over here i would be prosecuted , difficult to prosecute somone in china.

Testing is mandatory here.

Hi,
Would a power board be suitable, if it had enough room inside, there are many designs around.
images.jpg

Tom.... :slight_smile:

images.jpg

Saw off the front 6 - 8 mm of the unused back shell, now you have a collar you can put inside the box and screw in the 3 retaining screws from the front. Too simple?

Maplins do these:

http://www.maplin.co.uk/p/psu-enclosure-5-n07kh

Ian.

ian332isport:
Maplins do these:

http://www.maplin.co.uk/p/psu-enclosure-5-n07kh

Ian.

Maybe get one of those extension lead sockets and mount it on the front ?
BTW the testing mentioned is only mandatory if you are trying to sell it.
There are some exemptions under CE rules for kits sold for hobby/home construction though.

Watcher linked a socket that you may be able to cut a square hole and mount.
Those maplins boxes i have used and are thin plastic though.
Some reinforcement i think is needed

ian332isport:
Maplins do these:

http://www.maplin.co.uk/p/psu-enclosure-5-n07kh

Ian.

NO!!!
these are no use, plastic earth pin, completely unsafe for this application.

NO!!!
these are no use, plastic earth pin, completely unsafe for this application.

My thoughts exactly! Protective Earth Wire connection is a must!

Missed that.

Ones with metal are available though , i have one, not sure where it came from though.

Spiratronics do one I think but its too costly at around 13 pounds each.

I am fairly sure i have seen better on alibaba

Postage can also be much better .

Trailing sockets can be had from farnell for about £1, just not a pretty solution.

I am fairly sure i have seen better on alibaba

You mean aliexpress ? Been searching there too..