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AFDD Trip times

Former Community Member
Former Community Member
HI, just wondering how people are testing domestic AFDD'S 

I have been testing 30ma single pole AFDDs and im getting rcd disconnection times of roughly 80ms on 1x.

Is this normal? they consistently come up with around 80ms which is obviosly over the permissable 40ms.


my question is am i testing these wrong? is there a different way of procedure to test these devices? they are all the wylex brand if thats any help.


many thanks in advance for your responses
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    I saw in a youtube video that AFDD are normally slower than RCDs  i think its just how they are presumably they need to take several cycles to be sure its a real fault and not just a passing event
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    I saw in a youtube video that AFDD are normally slower than RCDs  i think its just how they are presumably they need to take several cycles to be sure its a real fault and not just a passing event
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