Technical data
11.4 3RB30/3RB31 solid-state overload relays
SIRIUS Innovations - SIRIUS 3RU2 thermal overload relays / SIRIUS 3RB3 solid-state overload relays
Manual, 09/2014, A5E03656507420A/RS-AA/002
123
11.4
3RB30/3RB31 solid-state overload relays
11.4.1
3RB301/3RB302/3RB311/3RB312 solid-state overload relays
11.4.1.1
General technical data
General technical data for 3RB30/3RB31 overload relays
Table 11- 11 General technical data for 3RB30/3RB31 overload relays
Type
3RB301., 3RB311.
3RB302., 3RB312.
Size
S00
S0
Width
45 mm
45 mm
Tripping in the event of
Overload, phase failure, and phase asy
ground fault (3RB31 only)
Tripping class acc. to
IEC/EN 60947-4-1
CLASS
3RB30: 10E/20E,
3RB31: 5E, 10E, 20E and 30E adjustable
Phase loss sensitivity
Yes
Overload warning
No
Resetting and recovery
•
Reset options following tripping
Manual, automatic, and remote RESET (depending on the version)
•
Recovery time
- Automatic RESET
min
approx. 3 min
- Manual RESET
min
Immediately
- Remote RESET
min
Immediately
Equipment
•
Display of operating state on device
Yes, via switch position indicator slide
•
TEST function
Yes, electronics can be tested by pressing the TEST button/
auxiliary contacts and wiring of control circuit are tested by
moving the switch position indicator slide/
self-monitoring
•
RESET button
Yes
•
STOP button
No