- Reaction score
- 2,115
GN3 p110 gives an example of an MEIWC being used when replacing a circuit breaker with an RCBO of the same rating (as well as some lighting points being added to the circuit in the example). If I was changing the rating or type of the OCPD, I personally would use an EIC but I can see the argument for using a MEIWC. Converting a radial circuit to an RFC, I would definitely use an EIC.