ABB RD3P - Page 15

2
3
5
10
30
1
2
3
5
10
1
0,5
0,3
0,1
0,03
0,5
0,3
0,2
0,06
0
FAULTON
l %
l
n [A] t [s]
ONOFF
20% 40% 60% 80%
Pre Alarm
Autoreset
TEST RESET
IEC60947-2/M
RD3P
Test no Trip (3s)
Description
The RD3P device is part of ABB’s RD3 family of residual current relays and
provides residual current monitoring and protection in compliance with
annex M to the CEI EN 60947-2 standard* and can be used in combination
with all MCBs S200 and moulded-case devices in the Tmax range up to
T5 for industrial plants.
The LED bar and the two output contacts of the RD3P range of residual
current relays can be used for signalling.
*Up to 630A
15
ABB_76x88mm_RD3P_rev4.indd 15 19/09/11 11:04