User Manual

SIRIUS 3RU2/3RB3 overload relays
5.10 Technical data
SIRIUS Innovations
System Manual, 01/2011, A8E56203870002-03
543
5.10.2.4 Auxiliary circuit
Table 5- 41 Technical data for the auxiliary circuit connection, 3RU21 overload relays
Type 3RU21 16 3RU21 26
Size S00 S0
Width 45 mm 45 mm
Number of NO contacts 1
Number of NC contacts 1
Auxiliary contacts - Assignment 1 NO for the "tripped" signal;
1 NC for disconnecting the contactor
Rated insulation voltage U
i
(pollution degree 3)
V 690
Rated impulse withstand voltage U
imp
kV 6
Contact rating of the auxiliary contacts
 NC with alternating current AC-14/AC-15,
rated operational current I
e
at U
e
- 24 V A 4
- 120 V A 4
- 125 V A 4
- 230 V A 3
- 400 V A 2
- 600 V A 0.75
- 690 V A 0.75
 NO with alternating current AC-14/AC-15,
rated operational current I
e
at U
e
- 24 V A 3
- 120 V A 3
- 125 V A 3
- 230 V A 2
- 400 V A 1
- 600 V A 0.75
- 690 V A 0.75
 NC, NO with direct current DC-13,
rated operational current I
e
at U
e
- 24 V A 1
- 60 V A
1)
- 110 V A 0.22
- 125 V A 0.22
- 220 V A 0.11
 Conventional thermal current I
th
A 6
 Contact reliability
(suitability for PLC, 17 V, 5 mA)
Yes