User Manual

3UG4641 cos phi and active current monitoring relay
12.6 Circuit diagrams
3UG4 / 3RR2 monitoring relays
288 Manual, 02/2013, NEB927043002000/RS-AA/002
12.6 Circuit diagrams
12.6.1 Internal circuit diagrams
Internal circuit diagrams 3UG4641






/[ /\1 ,1
FRVSKL!
Figure 12-1 3UG4641 cos phi and active current monitoring relay
12.6.2 Wiring examples
Cos phi and active current monitoring for single-phase motors
L or N
N or L
3UG4641
Lx
Ly/N
IN
12
11
14
22
21
24
M
1~
ϕ
I r
| / |
I r
|
/
ϕ
|
Figure 12-2 Cos phi and active current monitoring for single-phase motors