3Rb30/3Rb31; General Technical Data - Siemens SIRIUS 3RT Series System Manual

SIRIUS 3RU2/3RB3 overload relays
5.10 Technical data
5.10.3

3RB30/3RB31

5.10.3.1

General technical data

Table 5- 43 General technical data for 3RB30/3RB31 overload relays
Type
Size
Width
Tripping in the event of
Tripping class acc. to
IEC/EN 60947-4-1
Phase loss sensitivity
Overload warning
Resetting and recovery
Reset options following tripping

Recovery time

- Automatic RESET
- Manual RESET
- Remote RESET
Equipment
Display of operating state on device

TEST function

RESET button

STOP button

Explosion protection – safe operation of motors with
"increased safety" explosion protection type
EC type examination certificate number

conforming to Directive 94/9/EC (ATEX)
Ambient temperatures
Storage/transport

Operation

Temperature compensation

Permissible rated current

- At internal cabinet
temperature 60 °C
- 70 °C
546
3RB30 1., 3RB31 1.
S00
45 mm
Overload, phase failure, and phase asymmetry +
ground fault (3RB31 only)
CLASS 3RB30: 10 / 20,
3RB31: Select from 5, 10, 20, and 30
Yes
No
Manual, automatic, and remote RESET (depending on the version)
min approx. 3 min
min Immediately
min Immediately
Yes, via switch position indicator slide
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
Yes
No
PTB 09 ATEX 3001 II (2) GD
°C -40 ... +80
°C -25 ... +60
°C +60
% 100
% On request
3RB30 2., 3RB31 2.
S0
45 mm
100
1)
SIRIUS Innovations
System Manual, 01/2011, A8E56203870002-03