Thanks for your input,i spoke with the technical dept at merlin gerin today and they were almost positive it was down to the breaker being lightly loaded causing the trips as suggested in that thread
They suggested an engineer visit to re programme the trip unit to sort out the issue,it seems to...
Hi all,i have a problem with a merlin gerin masterpact 800amp m08 h1 circuit breaker.
over the weekend the breaker has been randomly tripping with little load on it,the tripping mechanism will indicate a fault and the breaker will discharge
the phases have around 45 amps on them when this...