S
Steve_P
I was doing a board change today and 10 out of the 15 RCBO's were returning a value in the region of 19ms at 1x and 30 at 5x. Tried more than 1 MFT (both Metrel but got the same sort of results). So this is still within the 40ms's but with new RCBO's would you personally accept or return them?