Seems the term ELCB was still in use when they were installed though.
I'm trying to remember when RCCB came into use as the replacement term for a current-operated ELCB. I don't think it was until the early 1980s.
Does anyone know how this change of terminology happened ?
I'm not sure why the change was ever proposed in the first place. And although RCD might be easier to say than RCCB, that was an even more ridiculous change. Why replace the more descriptive term
circuit breaker with the vague
device anyway?
![[Linked Image]](https://www.electrical-contractor.net/ubb/confused.gif)
Although RCD is now the "official" name, I know that at least a couple of years ago Crabtree was still labeling some units as RCCB.
ElCBO is also so much easier to say than RCCBO.
Just to confuse things even furthe, over here the combination overcurrent/earth-leakage breaker is now generally referred to as an RCBO (only one
C).
