ABB RD3M - Functions; Pre-alarm Function

ONOFF
Pre Alarm
OUTPUT Relay
Prealarm / TRIP
7 8 9
10 11 12
Functions
Pre-alarm → by moving the dip-switch to ON the pre-alarm function is
activated: the output contacts marked by terminals 7 8 9 will switch if a
differential fault above 60% I∆ occurs.
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ABB_76x88mm_RD3M_rev4.indd 17 19/09/11 11:02