Equipment - Siemens SIRIUS 3RU Manual

Technical data
11.3 Performance features
11.3.3

Equipment

Table 11- 3 Features of 3RU21, 3RB20 / 3RB21 and 3RB30 / 3RB31 overload relays
Feature
RESET function
Remote RESET function
TEST function for auxiliary
contacts
TEST function for electronics
Status display
Integrated auxiliary contacts:
1 NO contact
1 NC contact
Via a separate module.
1)
Only on the 3RB21 / 3RB31 electrically with 24 V DC.
2)
150
Description
Enables manual or automatic resetting of
•
the relay
Enables remote resetting of the relay
•
Enables simple function testing and wiring
•
Allows checking of the electronics
•
Displays the current operating state
•
Can be used to output signals
•
Enable shutdown of the connected
•
contactor to protect the load
SIRIUS 3RU thermal overload relays / SIRIUS 3RB electronic overload relays
3RU21 3RB30 /
3RB31
✓ ✓
✓ ✓
1) 2)
✓ ✓
-- ✓
✓ ✓
✓ ✓
✓ ✓
Manual, 09/2016, A5E03656507420A/RS-AB/003
3RB20 /
3RB21
✓
✓
2)
✓
✓
✓
✓
✓