SIRIUS 3RU2/3RB3 overload relays
5.10 Technical data
SIRIUS Innovations
550 System Manual, 01/2011, A8E56203870002-03
5.10.3.4 Auxiliary circuit
Table 5- 46 Technical data for the auxiliary circuit connection, 3RB30/3RB31 overload relays
Type 3RB30 1.,
3RB31 1.
3RB30 2.,
3RB31 2.
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 300
Rated impulse withstand voltage U
imp
kV 4
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
250 V A 3
NO 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
250 V A 3
NC, NO with direct current DC-13,
rated operational current I
e
at U
e
24 V A 2
60 V A 0.55
110 V A 0.3
125 V A 0.3
250 V A 0.11
Conventional thermal current I
th
A 5
Contact reliability
(suitability for PLC, 17 V, 5 mA)
Yes
Short-circuit protection
With fuse operating class gL/gG
A 6
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