User Manual

3UG4.1 line monitoring relay
6.4 3UG4513 line monitoring relay
3UG4 / 3RR2 monitoring relays
Manual, 02/2013, NEB927043002000/RS-AA/002
109
Reset response
The device features an autoreset that resets the output relays to their original state after an
error message and rectification of the fault that has occurred.
Note
The red LED is a fault diagnostics display and does not indicate the current state of the
relay!
Function diagrams 3UG4513
Phase failure and undervoltage Incorrect phase sequence
11/14
-20 %
L1-L2-L3L2-L3L1-L2-L3
n
3~
5 %
11/12
21/24
21/22
1
2
3
4
OFF
OFF OFFON ON
LED
11/14
11/12
21/24
21/22
L3-L2-L1
1
2
FLASH OFFOFF
LED
①
LED phase failure / phase sequence: Red
①
LED phase failure / phase sequence: Red
②
Phase failure
③
Tripping delay time
④
Hysteresis
②
Phase sequence