SIEMENS
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Siemens IC 10 · 2017
Overload Relays
SIRIUS 3RB2 Electronic Overload Relays
3RB22, 3RB23 for high-feature applications
7
1)
The assignment of auxiliary contacts may be influenced by function
expansion modules.
General data (continued)
Electromagnetic compatibility (EMC) – Interference immunity
• Conductor-related interference
-
Burst acc. to IEC 61000-4-4
(corresponds to degree of severity 3)
kV
2 (power ports), 1 (signal port)
-
Surge acc. to IEC 61000-4-5
(corresponds to degree of severity 3)
kV
2 (line to earth), 1 (line to line)
• Electrostatic discharge according to IEC 61000-4-2
(corresponds to degree of severity 3)
kV
8 (air discharge), 6 (contact discharge)
• Field-related interference acc. to IEC 61000-4-3
(corresponds to degree of severity 3)
V/m
10
Electromagnetic compatibility (EMC) – Emitted interference
Degree of severity A according to EN 55011 (CISPR 11) and EN 55022 (CISPR 22)
Resistance to extreme climates
– air humidity
%
100
Installation altitude above sea level
m
Up to 2 000
Mounting position
Any
Type of mounting
• Evaluation modules
Stand-alone installation
• Current measuring module
Size
S00 to S3: Stand-alone installation,
S6 and S10/S12: Stand-alone installation or mounting onto contactors
Type – Overload relay: evaluation modules
3RB2283-4A.1
3RB2383-4A.1
Size contactor
S00 ... S10/S12
Dimensions of evaluation modules
(W x H x D)
mm
45 x 111 x 95
W
H
D
Type – Overload relay: evaluation modules
3RB2283-4A.1, 3RB2383-4A.1
Size contactor
S00 ... S10/S12
Auxiliary circuit
Number of NO contacts
2
Number of NC contacts
2
Number of CO contacts
--
Auxiliary contacts – assignment
• Alternative 1
-
1 NO for the signal "tripped by overload and/or thermistor",
-
1 NC for disconnecting the contactor,
-
1 NO for the signal "tripped by ground fault",
-
1 NC for disconnecting the contactor
or
1)
• Alternative 2
-
1 NO for the signal "tripped by overload and/or thermistor and/or ground fault",
-
1 NC for disconnecting the contactor,
-
1 NO for overload warning
-
1 NC for disconnecting the contactor
Rated insulation voltage
U
i
(pollution degree 3)
V
300
Rated impulse withstand voltage U
imp
kV
4
Auxiliary contacts – contact rating
• NC, NO contact with alternating current AC-14/AC-15,
rated operational current
I
e
at
U
e
-
24 V
A
6
-
120 V
A
6
-
125 V
A
6
-
250 V
A
3
• NC, NO contacts with DC 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
0.2
• Conventional thermal current
I
th
A
5
• Contact reliability
(suitability for PLC control; 17 V, 5 mA)
Yes
Short-circuit protection
• With fuse, operational class gG
A
6
• With miniature circuit breaker, C characteristic
A
1.6
Protective separation
between auxiliary current paths
Acc. to IEC 60947-1
V
300
CSA, UL, UR rated data
Auxiliary circuit – switching capacity
B300, R300
© Siemens AG 2016