Siemens 3UG4 - Operator Controls and Connection Terminals

3UG4625 residual current monitoring relay with 3UL23 transformer
8.2 Operator controls and connection terminals
3UG4 / 3RR2 monitoring relays
192 Manual, 05/2016, NEB927043002000/RS-AC/004
8.2
Operator controls and connection terminals
3UG4625 front view/terminal labeling
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 article number
⑤
Label
⑥
Legend for menu
⑦
Display for parameterization, actual-value indication, and diagnostics
Terminal labels
A1+
Rated control supply voltage ∼ / +
A2-
Rated control supply voltage ∼ / -
C1
Connection for 3UL23 residual current transformer
C2
12
Output relay K1 CO contact NC contact (alarm output)
11
Output relay K1 CO contact root
14
Output relay K1 CO contact NO contact
22
Output relay K2 CO contact NC contact (warning output)
21
Output relay K2 CO contact root
24 Output relay K2 CO contact NO contact
You can find additional information on the connection terminals and the permissible
conductor cross-sections in the Chapter "Connection methods (Page 21)".
You can find information on connecting in the Chapter "Circuit diagrams (Page 206)".