Maintenance Free Junction boxes using Wagos

Well, that's a 2017 leaflet, so maybe they've discontinued them all apart from grey by now?

Has anyone ever figured out the full history of wago, connexbox and wagobox?

I'd say cables are very rarely clipped to joists and neither are JBs fixed to the joist either. It would mean lifting a whole load more of the floor than needed during a re-wire.

And if a new installation, best not to fit a JB in an inaccessible place anyway.

For a re-wire, what would be wrong with clipping the cable just near the junction box and not elsewhere? It'd serve the same purpose as a cable clamp.

Places that were accessible can easily become inaccessible later - such as by tiling a floor, fitting units above, etc.

Not really - easy to pull a cable through a clip. Not so with a proper cord grip.

As per the OP's question. Personally, if it has worked OK to date, I'd leave things as they are. Seems to be a solution to a problem that wouldn't exist if care was taken in the first place.

red going for 50 pence last December - possibly a clear-out

Dammit. I extended a ring using a Wago MF JB and thought I was being a good boy by using 773-173s but didn't spot this minimum diameter. I think I ought to take the carpet up and inspect them... (which, if I do, will of course make me wonder if they needed to be maintenance free afterall!).

Looks like it's my lucky day! *This* is why I take photos of everything I do in the house, particularly 'behind the scenes' stuff:

Are these going to be in a ceiling void or on the ground floor with definitely no access, one can after all put in dummy air vents in a ceiling to allow access to such things. Brian

it looks like you have some crunched up metal sheet/foil above the connector used for the live wires?

S.

Or is it just (camera flash?) reflecting off the translucent part of the wago?

looks to me flash reflected from the plastic on the end of the Wago that does not detract from an excellent "photo of record"

Matthew is that a 773-173 below the 222 series used for the CPC and if so do you think a 773-104 would fit on top? The reason I ask is because the junction boxes I am replacing have spurs coming off them so I need to get something with at least a 3-way for the CPC. The data sheet for the similar Wagobox 221-4 shows the three slots filled and the CPC?s inserted into a 5-way folded back on the cables, I am not sure the standard Wagobox will allow that using a 222 series connector. I have seen a data sheet that showed the combinations of different connectors you can use in the slots but cannot seem to find it now.

Richard

The older wagoboxes allow for two columns of 222 or 773 connectors, the newer wagoboxes allow for three columns of the smaller 221 or 2273 connectors (but the latter require some form of "adapter" to wrap around the connector)

Andy I appreciate what you are saying but my question is if you have inserted a 773-173 connector into each slot of the standard Wagobox, how much room is left in each slot for additional connectors bearing in mind, because of spurs, I will have three CPC?s to connect too.

Richard

Yes, that's it.

It's all jolly confusing isn't it. Perhaps if you're using these things day-in-day-out the numbers all become second nature. Regarding your questions/thoughts:

At the end of the day even if constructing these boxes in less-than-perfect alignment with the instructions (which you really have to go looking for and then some time digesting the nuances of) then I'm sure the end result would be a million times better than the round screw-down junction boxes which I see are still widely available and, presumably, still used. Sure, such boxes are not allowed to be used in maintenance free locations but even if accessible who in real life actually maintains these boxes and how often?

I don't have any 773-173s so don't know how much room they eat, but I'd be surprised if you couldn't fit a 773-104 in the same slot as well.

I've tended to use 773-104 and 773-106 for CPCs, other wise with 222s you need a 5+3 linked just to get 6 earths commoned, I haven't switched to 221 yet, which would let you fit more in, especially with the XL boxes.

with 222s you can fit into one slot 5+2, 3+2, 2x3 or 3x2 with 773 you can fit 2x6 or 3x4 (I don't have any of the larger 773s to check)

mixing the types you can fit a 222-105 and a 773-104 (but not a 773-106) so if the 773-173 is as long, or longer than a 222-105, you won't fit a

a 222-105 is 16.5mm long, how long is a 773-173 ?

I've never found in one place the sizes across ranges but TLC have a Data Sheet for the 773 range which lives in me box