User Manual
3UG4641 cos phi and active current monitoring relay   
12.2 Operator controls and connection terminals 
  3UG4 / 3RR2 monitoring relays 
280  Manual, 02/2013, NEB927043002000/RS-AA/002 
12.2  Operator controls and connection terminals 
Front view / terminal labeling 3UG4641 
Front view  Description 
Position digits 
① 
Terminal block (removable): 
Connection is possible using screw terminals or spring-loaded terminals. 
② 
Arrow keys for menu navigation 
③ 
SET key for menu navigation 
④ 
Device order number 
⑤ 
Label 
⑥ 
Legend for menu 
⑦ 
Display for parameterization, actual-value indication, and diagnostics 
Terminal labels 
Lx  Power supply (measuring signal) ∼ / + 
Ly/N  Power supply (measuring signal) ∼ / + 
IN  Measuring signal input (current) 
12  Output relay K1 CO contact NC contact 
11  Output relay K1 CO contact root 
14  Output relay K1 CO contact NO contact 
22  Output relay K2 CO contact NC contact 
21  Output relay K2 CO contact root 
24
2122
12
14
11
IN
Ly/N
Lx
3UG4641-.....
SIRIUS
90--690V
 -> cos = PF
Ires -> Active current
onDel -> Current on delay 
Mem ? -> Memory?
 NC -> Circuit principle
24  Output relay K2 CO contact NO contact 
You will find additional information on the connection terminals and the permissible 
conductor cross-sections in Chapter "Connection methods (Page 19)." 
You will find information on connecting in Chapter "Circuit diagrams (Page 288
)." 










