User Manual

3UG4621/3UG4622 current monitoring relays
7.6 Circuit diagrams
3UG4 / 3RR2 monitoring relays
Manual, 02/2013, NEB927043002000/RS-AA/002
163
7.6.2 Wiring examples
Wiring examples
Note
If this arrangement is not complied with, the monitoring relay may be destroyed and the
short-circuit current may damage the plant!
3UG46..-.AW30
Single-phase operation Three-phase operation
< >
AC/DC
M
load
Load
U
load
11
14
M
12
A1
A2
IN
3UG462.-.AW30 single-phase operation
< >
A
C/DC
Load
A1 IN
A2 M
L3 L2L1
11
1412
3UG462.-.AW30 three-phase operation
3UG462.-.AA30
Note
If this arrangement is not complied with, the monitoring relay may be destroyed and the
short-circuit current may damage the plant!
Operation with a separate control circuit and load current circuit
• single-phase
< >
24 V AC/DC
M
load
U
load
Load
11
1412
A2 M
A1
IN