4.5 3RR22 current monitoring relays
4.5.1 Operator controls and connection terminals
Front view / terminal labeling (standard version)
Front view Description
Position digits
① Connection for contactor mounting or for stand-
alone assembly
② Arrow keys for menu navigation
③ SET key for menu navigation
④ Legend for menu
⑤ Control circuit terminal (removable):
The control circuit can be connected using either the
screw-type or the spring-loaded connection system.
⑥ Main circuit terminal (permanently connected):
The main circuit can be connected using either the
screw-type or the spring-loaded connection system.
⑦ Label
⑧ Device article number
⑨ Display for parameterization, actual-value indication,
and diagnostics
Terminal labels
B1 Supply voltage ∼ / +
B2 Supply voltage ∼ / -
Q Semiconductor output, e.g. for pre-warning
threshold
32 Output relay K1 CO contact NC contact, e.g. for
alarm threshold
31 Output relay K1 CO contact root, e.g. for alarm
threshold
34 Output relay K1 CO contact NO contact, e.g. for
alarm threshold
2/T1, 4/T2,
6/T3
Main circuit terminals
14/22 Feed-through contactor auxiliary switch (S00)
A2 Feed-through contactor coil terminal (S00)
You can nd additional information on the connection terminals and the permissible conductor
cross-sections in the Chapter "Connection methods (Page 23)".
You can nd information on connecting in the Chapter "Circuit diagrams (Page 68)".
3RR2 current monitoring relays
4.5 3RR22 current monitoring relays
SIRIUS 3UG4 / 3RR2 monitoring relay
Equipment Manual, 07/2021, NEB927043002000/RS-AD/005 61
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