User Manual
3UG4621/3UG4622 current monitoring relays
7.2 Operator controls and connection terminals
3UG4 / 3RR2 monitoring relays
154 Manual, 02/2013, NEB927043002000/RS-AA/002
7.2 Operator controls and connection terminals
Front view / terminal labeling 3UG4621 / 3UG4622
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
A1+ Rated control supply voltage AC/DC+
A2- Rated control supply voltage AC/DC-
M (GND) Measuring signal input -
IN Measuring signal input +
12 Output relay K1 CO contact NC contact
11 Output relay K1 CO contact root
1 3-500mA
14
1112
A2-
M
IN
A1+
3UG4621-.....
SIRIUS
24V
onDel -> Current on delay
Del -> Imin/Imax delay
Mem ? -> Memory?
NC -> Circuit principle
14 Output relay K1 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 162
)."










