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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
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  • 0
    Thanks for that Chris. They all appear to have a blade/spring mechanism. Andy’s comment made me think that it was only the non lever types had a blade/spring and the lever types for example 221 series which I use worked in a different way. I was just curious that although they are pull tested on a test rig in the factory, under normal conditions when being used for real, the installer would be best not to pull each conductor for his/her own peace of mind. The thought being that they are sold as giving a known termination whereas a choc block connector For example is up to the installer to tighten to an acceptable torque. I for one give every termination I make a gentle pull test and never had any worries before as doing this will never weaken a screw on a neutral or earth bar in a CU for example but the spring/blade in a wago is designed for a set clamping force and trying to pull a cable out after insertion in a real installation could alter this.
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  • 0
    Thanks for that Chris. They all appear to have a blade/spring mechanism. Andy’s comment made me think that it was only the non lever types had a blade/spring and the lever types for example 221 series which I use worked in a different way. I was just curious that although they are pull tested on a test rig in the factory, under normal conditions when being used for real, the installer would be best not to pull each conductor for his/her own peace of mind. The thought being that they are sold as giving a known termination whereas a choc block connector For example is up to the installer to tighten to an acceptable torque. I for one give every termination I make a gentle pull test and never had any worries before as doing this will never weaken a screw on a neutral or earth bar in a CU for example but the spring/blade in a wago is designed for a set clamping force and trying to pull a cable out after insertion in a real installation could alter this.
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