Auxiliary Circuit - Siemens SIRIUS 3RT Series System Manual

SIRIUS 3RU2/3RB3 overload relays
5.10 Technical data
5.10.3.4

Auxiliary circuit

Table 5- 46 Technical data for the auxiliary circuit connection, 3RB30/3RB31 overload relays
Type
Size
Width
Number of NO contacts
Number of NC contacts
Auxiliary contacts - Assignment
Rated insulation voltage U
(pollution degree 3)
Rated impulse withstand voltage U
Contact rating of the auxiliary contacts
NC with alternating current AC-14/AC-15,

rated operational current I
24 V
120 V
125 V
250 V
NO with alternating current AC-14/AC-15,

rated operational current I
24 V
120 V
125 V
250 V
NC, NO with direct current DC-13,

rated operational current I
24 V
60 V
110 V
125 V
250 V
Conventional thermal current I

Contact reliability

(suitability for PLC, 17 V, 5 mA)
Short-circuit protection
With fuse operating class gL/gG

550
V
i
kV
imp
at U
e e
A
A
A
A
at U
e e
A
A
A
A
at U
e e
A
A
A
A
A
A
th
A
3RB30 1.,
3RB31 1.
S00
45 mm
1
1
1 NO for the "tripped" signal;
1 NC for disconnecting the contactor
300
4
4
4
4
3
4
4
4
3
2
0.55
0.3
0.3
0.11
5
Yes
6
3RB30 2.,
3RB31 2.
S0
45 mm
SIRIUS Innovations
System Manual, 01/2011, A8E56203870002-03