SIEMENS
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Siemens IC 10 · 2017
Overload Relays
SIRIUS 3RB2 Electronic Overload Relays
3RB20, 3RB21 for standard applications
7
Type
3RB2056, 3RB2153
3RB2066, 3RB2163
Size
S6
S10/S12
Dimensions (W x H x D)
(overload relay with stand-alone installation
support)
mm
120 x 119 x 155
145 x 147 x 156
General data (continued)
Touch protection
acc. to IEC 60529
• Screw terminals/busbar connections
Finger-safe with terminal covers for vertical contact from the front
• Straight-through transformers
Finger-safe
--
Shock resistance with sine
acc. to IEC 60068-2-27
g
/ms
15/11 (signaling contact 97/98 in position "tripped": 4 g/ 11 ms
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 B acc. 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
Direct mounting/stand-alone installation
W
H
D
© Siemens AG 2016