Wednesday 14 August 2013

Q & A of the Day – What is the fault withstand rating for a typical consumer unit?

Question: What is the fault withstand rating for a typical consumer unit rated in kA?
I ask because such information provided only seems to relate to switchboards - for example, 35kA for 1 sec.

Answer: Typically this would be 16kA as a conditional rating when backed-up by a domestic cut-out fuse.


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