Published: 24 August 2012
Category: Q&A
James McMullen asks a question about RCBO functional earths. It has been answered by Schneider Electric (Theme – Installation Tips):
This Q & A is one of thousands posted in our Technical Expertise area, and answered on a daily basis by our Voltimum Experts.
Question: Could you please confirm whether it is acceptable to group up the functional earths on RCBOs and put them into one terminal, rather than putting each one with the circuit protective conductor (CPC) from the corresponding circuit?
Answer: The SP&N RCBO earth cable is used as an earth reference.
The preferred method would be to have a dedicated terminal for testing and diagnostic reasons.
Other wiring methods would be up to the individual electrician to decide.
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