User Manual

3UG4501 filling level monitoring relay
5.2 Operator controls and connection terminals
3UG4 / 3RR2 monitoring relays
76 Manual, 02/2013, NEB927043002000/RS-AA/002
5.2 Operator controls and connection terminals
Front view / terminal labeling
Front view Description
Position digits
①
Terminal block (removable):
Connection is possible using screw terminals or spring-loaded terminals.
②
Rotary button for setting the monitoring mode.
③
Display field: drainage control (OV) or inflow control (UN)
④
Rotary button for setting the sensor sensitivity (R sens)
⑤
Rotary button for setting the tripping delay (Delay)
⑥
Device order number
⑦
Label
⑧
Status display: LED contact symbol (yellow)
⑨
Status display: LED coil symbol (green)
Terminal labels
A1+ Rated control supply voltage AC/DC+
A2- Rated control supply voltage AC/DC-
M
(GND)
Reference point
Min Minimum level
Max Maximum level
12 Output relay K1 CO contact NC contact
11 Output relay K1 CO contact root
14
1112
Min
A2-
Max
M
A1+
3UG4501-.....
SIRIUS
UN
R sens
2
10s
0,5
Delay
10
30
3
100
200kΩ
5
7
24V










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 81)."