SIEMENS
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Siemens IC 10 · 2017
Overload Relays
SIRIUS 3RB2 Electronic Overload Relays
3RB22, 3RB23 for high-feature applications
7
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Technical specifications
The following technical information is intended to provide an ini-
tial overview of the various types of device and functions.
More information
Application Manual "SIRIUS Controls with IE3/IE4 Motors",
see
Configuration Manual "Configuring SIRIUS Innovations – Selection Data for
Fuseless and Fused Load Feeders",
see
Operating Instructions "3RB22, 3RB23 Electronic Overload Relays",
see
Technical specifications,
see
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
General data
Tripping in the event of
Overload, phase failure and phase asymmetry (> 40 % according to NEMA),
+ ground fault (with corresponding function expansion module) and activation of the
thermistor motor protection (with closed PTC sensor circuit)
Trip class
acc. to IEC 60947-4-1
CLASS
5E, 10E, 20E and 30E adjustable
Phase failure sensitivity
Yes
Overload warning
Yes, from 1.125 x
I
e
for symmetrical loads
and from 0.85 x
I
e
for unsymmetrical loads
Reset and recovery
• Reset options after tripping
Manual, Automatic and Remote RESET
• Recovery time
-
For automatic RESET
min.
- For tripping due to overcurrent: 3 (stored permanently),
- For tripping by thermistor: Time until the motor temperature has fallen 5 K
below the response temperature,
- For tripping due to a ground fault: no automatic RESET
-
For manual RESET
min.
- For tripping due to overcurrent: 3 (stored permanently),
- For tripping by thermistor: Time until the motor temperature has fallen 5 K
below the response temperature,
- For tripping due to a ground fault: Immediately
-
For remote RESET
min.
- For tripping due to overcurrent: 3 (stored permanently),
- For tripping by thermistor: Time until the motor temperature has fallen 5 K
below the response temperature,
- For tripping due to a ground fault: Immediately
Features
• Display of operating state on device
Yes, with four LEDs:
- Green LED "Ready",
- Red LED "Ground Fault",
- Red LED "Thermistor",
- Red LED "Overload"
• TEST function
Yes, test of LEDs, electronics, auxiliary contacts and wiring of control circuit by
pressing the button TEST/RESET / self-monitoring
• RESET button
Yes, with the TEST/RESET button
• STOP button
No
Protection and operation of explosion-proof motors
EC type-examination certificate number
according to directive 2014/34/EU (ATEX)
PTB 05 ATEX 3022
II (2) GD
WW/view/en/23115758
--
Ambient temperatures
• Storage/transport
°C
-40 ... +80
• Operation
°C
-25 ... +60
• Temperature compensation
°C
+60
• Permissible rated current
-
Temperature inside control cabinet 60 °C
%
100
-
Temperature inside control cabinet 70 °C
%
On request
Degree of protection
acc. to IEC 60529
IP20
Touch protection
acc. to IEC 60529
Finger-safe
Shock resistance with sine
acc. to IEC 60068-2-27
g
/ms
15/11
W
H
D
© Siemens AG 2016