SIRIUS 3RU2/3RB3 overload relays
5.10 Technical data
SIRIUS Innovations
548 System Manual, 01/2011, A8E56203870002-03
5.10.3.2 Main circuit
Table 5- 44 Technical data for the main circuit, 3RB30/3RB31 overload relays
Type 3RB30 1.,
3RB31 1.
3RB30 2.,
3RB31 2.
Size S00 S0
Width 45 mm 45 mm
Rated insulation voltage U
i
(pollution degree 3)
V 690
Rated impulse withstand voltage U
imp
kV 6
Rated operational voltage U
e
V 690
Type of current
DC current
No
AC current
Yes, 50/60 Hz ± 5%
Current setting A 0.1 to 0.4 to
4 to 16
0.1 to 0.4 to
10 to 40
Power loss per device (max.) W 0.05 ... 0.2
Short-circuit protection
With fuse without contactor
See "Selection and ordering data" in Catalog
LV 1 N SIRIUS Innovations.
With fuse and contactor
See the chapter titled "Motor starter protectors (Page 379)"
Protective separation between main and
auxiliary current paths acc. to IEC/EN 60947-1
(pollution degree 2)
V 690
1)
1)
For grounded networks, otherwise 600 V
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