ABB RD3P - Page 18

ONOFF
Pre Alarm
Autoreset
OUTPUT Relay
Prealarm / TRIP
7 8 9
FAIL SAFE
OUTPUT Relay
TRIP
10 11 12
OUTPUT Relay
Prealarm / TRIP
7 8 9
10 11 12
ONOFF
Pre Alarm
Autoreset
ON
ON
7 8 9
FAIL SAFE
OUTPUT Relay
TRIP
10 11 12
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 above 60% I∆ occurs.
Autoreset → by moving the dip-switch to ON the automatic reset function
is activated: the Relay OUTPUT contacts will revert to the stand-by status
when the fault status ends.
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ABB_76x88mm_RD3P_rev4.indd 18 19/09/11 11:04