ABB RD3M Handbuch Seite 17

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.
BB_76x88mm_Rd3M_rev4.indd 17
Pre Alarm
OFF
7 8 9
OUTPUT Relay
Prealarm / TRIP
17
ON
10 11 12
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