Wagos

[MDJ]

Anyone ever tried to twist a wago when it's on a cable? I did a joint earlier in the week with a 32 amp wago which can take .75mm2 to a 4mm2 cable, according to the instructions it can be used by both stranded and solid cores, I pushed a wago onto a 2.5mm2 solid core, The spark I was working with tried to pull it off the cable to see how strong they were, he failed, I tried and failed, the connection held, however the actual wago could be twisted on the cable, anyone else had this? we assumed they have been tested to BS and must have passed the tests, if so how can a wago which can twist on a core be adequate? seems strange to me, I may write to the company about it.

 

[telectrix]

twist and pull to remove cable from wago. you'll see the score marks on the copper where the wago has bit into it.

 

[MDJ]

Tried that fella, they would not come off, but should a wago be able to rotate on a cable? seems like a poor joint.

 

[telectrix]

well, an artic trailer pivots on the tractor unit and it don't come off.

 

[i=p/u]

well there getting popped in all over uk so the way you gus talk about rubber cable il be talking about wagos and t&e

 

[MDJ]

Hmm thanks Tel, very helpful hehe, the point I tried to make is when a connector is on a cable and done up tight with a screw driver the connector will not rotate on the cable, the wago I used in the week will twist very easily but wont pull off, it jut seemed strange to me this, ah well maybe it is okay I suppose.

 

[telectrix]

see what you mean. but then aeroplanes seemed strange to african tribesmen.

 

[kingeri]

I know what you mean, it's a secure connection in terms of it's not gonna come loose, but the fact that it rotates makes you think that the electrical connection isn't brilliant.

 

[MDJ]

yup thats my exact thinking, just seemed strange, a bit like bath beating Gloucester at rubgy, just strange hehe

 

[kingeri]

Used hundreds of them and never had an issue when it comes to testing. So I think they must be ok! Plus, as you said, they're BS blah blah marked.

 

[tazz]

Hmm thanks Tel, very helpful hehe, the point I tried to make is when a connector is on a cable and done up tight with a screw driver the connector will not rotate on the cable, the wago I used in the week will twist very easily but wont pull off, it jut seemed strange to me this, ah well maybe it is okay I suppose.

Seen alot of these used on site, and they all think there great.....I think time is going to tell on these. Oxidising over time in one comment i would be thinking of. How do these sand up on 500v insulation tests and especially R1/R2...?

 

[MDJ]

Good point Tazz, I may whack a 1000 volts through one actually next week to see what happens, I love the fact they are easy to use and probably own over 600 of them at the moment, however me and My sparky was suprised by the fact they do twist on a solid cable and just couldn't decide between us whether they are safe or not, hence my comment about writing to the company even though a BS number is on them, jut seems a bit weird and not like it is a secure connection, perhaps there is a good reason behind it.

 

[tazz]

I thing the R1 /R1 will show them their true colours. Any unwanted resistance will be the key to their life span

 

[Steve_P]

I know they're similar but I prefer hellerman, there's a point in them that lets you poke a probe into them for testing which wago don't have. Know what you mean about rotation but reckon it depends how much contact is being made inside those little bits of plastic.

 

[Paul.M]

Before I say this I must state I love Wago's. Help me out today NO END. Made the job quicker and easier, but thats not the question.

There is a question in the C&G 17ed regs and it asks:- What weight does a termination need to take under dead weight?

The answer is 4Kg.

Now that is dead weight and not twisting but when would and termination be twisted to the point where the screw or clamp or crimp be subjected to that amount of force?

Ok we all have twisted and pulled off the Wago lighting push fit connectors (white and gray type) but I think that is a bonus and not a default in the product???

Alright I'm a bit biased on these type of products but it will be interesting what the manufacturer has to say about your finding MDJ. Please post back

 

[Spark1979]

According to a wago rep I was talking to says you can remove a wago by twisting and pulling hence releasing the connector and cable, a wago connector can be removed and reused where as hellerman cannot be reused, ask hellerman and they agree if you ask them. So I assume they are made to rotate as long as they have no weight on them

 

[imago]

The connection point inside a wago is akin to a blade edge in that it digs into the copper at roughly 90 degrees to the core. So when you twist it the 'blade' flexes and allows a screwing action. The chock block or screw type connector makes contact with a flat ended point on the screw tip. They make very similar contact areas between the connector and the core, just in a different shape.

I was sceptical about the Line/Wago connectors at first, so I broke a couple open to see what the story was for myself. As for corrosion, they are no better or worse than screw connectors from what I can see.

The advantage that the wago/line connectors have over the screw is that they maintain pressure if the core deforms or expands and contracts.

 

[Victor]

I have been using Wago's for the last 3 to 4 years here in France. Never had a problem with insulation testing or R1/R2 or in fact a problem at all with them

 

[jenions]

According to a wago rep I was talking to says you can remove a wago by twisting and pulling hence releasing the connector and cable, a wago connector can be removed and reused where as hellerman cannot be reused, ask hellerman and they agree if you ask them. So I assume they are made to rotate as long as they have no weight on them

I've re'used hellermnans before with no issue, to be honest I don't find much difference if any between wago and hellerman.

 

[amlu]

temporally second fixed a 25 point ring with wagos today, insulation resistance higher than my tester can do, noted the continuity ...will compare it after fitting sockets