Do only electronic RCD's/RCBO's have functional earths?

Does the equivalent model do without?

It has been a few years since I gave it up...:(
 
Yea nothing Eaton has a FE.

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The MR30s still have a FE but they're a MEM legacy product.

I don't remember seeing an RCD with a FE other than the A100HE.
 
Returning the the original question, I have to say that I personally agree with Eaton about this. No matter what vocabulary one uses, the chance of a lost neutral and an earth fault arising simultaneously is so extremely small that I really don't think it's really a justification for having a FE on RCBOs.

It's worth saying again that the great majority of UK installations rely on RCDs, rather than RCBOs, for fault protection and, AFAIAA, very few (if any - I'm never seen one) of them will have FEs.

Kind Regards, John
 
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