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Type-A RCD failing 180 degree ramp test

Former Community Member
Former Community Member
Hi


We are testing a type-A RCD (see image: "ABB") with a METREL MI 3152 (see image: "MI 3152 test").

As the image shows, the ramp test (I delta) is failing to trip the RCD for the negative half wave.


Have oneone seen this before?


Br Sebastian
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  • 0
    I looked at this last night, both moulded cases look identical, but the labels are mis-matched. I am assuming the iffy RCD is the top one and the label lacks the professional looking finish to the lower one and there isn’t the same amount of information.


    Looking at the label on the top RCD I would question its provenance, but I am not picking anything up in particular on “Made in Italy” being highlighted.


    Andy
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  • 0
    I looked at this last night, both moulded cases look identical, but the labels are mis-matched. I am assuming the iffy RCD is the top one and the label lacks the professional looking finish to the lower one and there isn’t the same amount of information.


    Looking at the label on the top RCD I would question its provenance, but I am not picking anything up in particular on “Made in Italy” being highlighted.


    Andy
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