The IET is carrying out some important updates between 17-30 April and all of our websites will be view only. For more information, read this Announcement

Rules and Guidelines
Want to participate in the discussions? Please read our Community Rules and Guidelines. Need some help? Visit Support and Answers.

  • State Not Answered
  • Locked Locked
  • Replies 19 replies
  • Subscribers 31 subscribers
  • Views 2613 views
  • Users 0 members are here
Options
You may also be interested in
This discussion is locked.
You cannot post a reply to this discussion. If you have a question start a new discussion

Wago’s pull test

Baldyhugh
Hi all.

I've been using wago’s for a couple of years now and more recently the 221 series mainly on lighting circuits. As I do with all terminations, I do a gentle ‘pull test’ after connection which was drummed into me from apprenticeship days to check if the wire is securely held. I also do this with the wago’s but on occasion find that the wire will pull back slightly but not pull out. It can then be pushed forward again fully up into the terminal. I find that this happens more with solid conductors rather than stranded or flex. My query is, am I damaging the internal workings of the wago by carrying out this pull test? I like the reassurance of a pull test on terminations but should it be given a miss on wago’s?


thanks in advance
  • 0
    A reasonable non jerky pull should be fine -  don't pull like some gorrilla uprooting a tree,  but to test with a few  hundred grams force is reasonable.


    they are pull  tested to EN 60947 7/7 and EN 60998 2/2  (and pass by a good margin), so you should stick to a fraction of this - 10N  is  like lifting 1 kilo ,and that is permitted  for even the smallest wire.

    0585c01bd07b6ebcb07aee5d6fdf2bfb-original-pull-test_wago.png
  • 0
    I do a push test with standard Wagos - will it go any further in? Of course, one can see whether or not the conductor is fully home. 221s have the advantage of being clear also. I cannot quite see the point of using the lever types for permanent work, but I like the 222s for R1+R2 and ring testing. I have had a play just now and nothing seems to be loose as described above. To be honest, I have never given it much (any) thought, but I think that a wee tug is second nature. Good tip! ?
  • 0
    I only use the levers if i am connecting a flex as i have never been able to push one into the standard Wago without it just bending over.   If you need to get a smaller cable out of the standard Wago without  destroying it, so maybe to test.  If you push another core of the same size up along side it will pull out with a gentle wiggle if you are careful  (I have only tried it with 1.0mm)  



    Gary
  • 0
    Thanks for your replies 


    I have to say that I use them for permanent work mainly on lighting circuits and find them a lot faster than traditional strip connectors. I find them especially useful if connecting different conductor types together as a standard 15a connector didn’t grip them equally I found. I just happened to notice when applying a gentle pull to a solid conductor in a 221 wago the other day that it pulled back slightly which was a bit concerning. I’d didn’t pull out however. I wondered whether doing a pull test had bent the spring mechanism inside it. Seems the consensus is that a gentle pull test is ok.


    Thanks again all
  • 0
    it pulled back slightly which was a bit concerning

    For the non-lever types, I suspect it would be just a matter of the retaining spring/blade 'biting' into the conductor - so if anything the pull should make it more secure rather than weakening anything.

      - Andy.
  • 0
    Hi Andy


    it was the 221 so was the lever type but I guess that they grip in the same way.


    thanks
  • 0
    aligarjon:

    I only use the levers if i am connecting a flex as i have never been able to push one into the standard Wago without it just bending over.   If you need to get a smaller cable out of the standard Wago without  destroying it, so maybe to test.  If you push another core of the same size up along side it will pull out with a gentle wiggle if you are careful  (I have only tried it with 1.0mm)  


    Yes, I don't think that the ordinary ones are intended for flex, but there are the straight through ones for lighting with a sort of push button for release.


    I have just tried the second wire trick. It worked for 1.5 mm² and 1.0 mm², but the second wire tends to catch! However, if you use a scrap for the second wire, it can suffer a bit of abuse when you pull it out. 2 x 2.5 mm² doesn't fit. Another good tip! ?


  • 0

    For the non-lever types, I suspect it would be just a matter of the retaining spring/blade 'biting' into the conductor - so if anything the pull should make it more secure rather than weakening anything


    Andy, do the lever type and non lever type grip in a different way? I thought that there was a blade, spring mechanism in both

     



  • 0
    Baldyhugh:

    ... do the lever type and non lever type grip in a different way? I thought that there was a blade, spring mechanism in both.


    Videos explain it here, here, and here. Enjoy!


  • 0
    aligarjon:

    I only use the levers if i am connecting a flex as i have never been able to push one into the standard Wago without it just bending over.   If you need to get a smaller cable out of the standard Wago without  destroying it, so maybe to test.  If you push another core of the same size up along side it will pull out with a gentle wiggle if you are careful  (I have only tried it with 1.0mm)  



    Gary


    Some Wago's, like the 773's, are only suitable for Class 1 (solid) and Class 2 (stranded) conductors (both of these would come under the denomination "sol" used by some manufacturers). To the best of my knowledge, the Wago's are all marked in some way with the wire types they will terminate - moulded in the plastic so you might need specs in poor light though.

    The 221's and 222's do Class 1, 2, and 5 (Flexible) but not Class 6 (Extra-flexible).


Join us to get the best from IET EngX.

Joining EngX lets you personalise your experience so you stay up to date on the topics that interest you, plus you’ll be able to make connections who are looking to collaborate, exchange ideas and more.

Join us Not now

Community Rules & Guidelines