M marc8 - Reaction score 164 Jun 7, 2017 #51 Make sure that RCD up front (100ma) is time delayed, if you install a 30ma rcd down stream the 100ma rcd could still trip unless time delayed.
Make sure that RCD up front (100ma) is time delayed, if you install a 30ma rcd down stream the 100ma rcd could still trip unless time delayed.