User Manual

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

(pollution degree 3)

V 690

Rated impulse withstand voltage U

imp

kV 6

Rated operational voltage U

V 690

Type of current

 DC current

 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

For grounded networks, otherwise 600 V