Trip-indicating auxiliary contact AGM [t-head1]

The trip-indicating auxiliary contact is of particular importance. Two separate contact pairs signal that the circuit-breaker is in the tripped position. One contact pair (normally open & normally closed) signals general tripping and one pair signals tripping in the event of a short circuit. If the normally open contact 4.43/4.44 and the normally closed contact 4.21/4.22 are connected in series, then it is also possible to indicate overload tripping differentially.