SIEMENS
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Siemens IC 10 · 2017
Overload Relays
SIRIUS 3RB2 Electronic Overload Relays
3RB22, 3RB23 for high-feature applications
7
1)
For the 3RB22 and 3RB23 overload relays in combination with a
corresponding function expansion module.
2)
Analog input modules, e.g. SM 331, must be configured for 4-wire
measuring transducers. In this case the analog input module must not
supply current to the analog output of the 3RB22 and 3RB23 relay.
3)
If two different conductor cross-sections are connected to one clamping
point, both cross-sections must be in the range specified.
Type – Overload relay: evaluation modules
3RB2283-4A.1, 3RB2383-4A.1
Size contactor
S00 ... S10/S12
Control circuit
Rated insulation voltage
U
i
(pollution degree 3)
V
300
Rated impulse withstand voltage U
imp
kV
4
Rated control supply voltage
U
s
• 50/60 Hz AC
V
24 ... 240
• DC
V
24 ... 240
Operating range
• 50/60 Hz AC
0.85 ×
U
s min
U
s
1.1 ×
U
s max
• DC
0.85 ×
U
s min
U
s
1.1 ×
U
s max
Rated power
• 50/60 Hz AC
W
0.5
• DC
W
0.5
Mains buffering time
ms
200
Sensor circuit
Thermistor motor protection
(PTC thermistor sensor)
• Summation cold resistance
k
1.5
• Response value
k
3.4 ... 3.8
• Return value
k
1.5 ... 1.65
Ground-fault detection
The information refers to sinusoidal residual currents at 50/60 Hz.
• Tripping value
I
1)
-
For 0.3 ×
I
e
<
I
motor
< 2.0 ×
I
e
> 0.3 ×
I
e
-
For 2.0 ×
I
e
<
I
motor
< 8.0 ×
I
e
> 0.15 ×
I
motor
• Response time
t
trip
ms
500 ... 1 000
Analog output
1)2)
Rated values
• Output signal
mA
4 ... 20
• Measuring range
0 ... 1.25 ×
I
e
4 mA is equivalent to 0 ×
I
e
16.8 mA is equivalent to 1.0 ×
I
e
20 mA is equivalent to 1.25 ×
I
e
• Load, max.
100
Conductor cross-sections for the auxiliary, control and
sensor circuits as well as the analog output
Connection type
Screw terminals
Terminal screw
M3, Pozidriv size 2
Operating devices
mm
3.0 x 0.5
Prescribed tightening torque
Nm
0.8 ... 1.2
Conductor cross-sections (min./max.),
1 or 2 conductors can be connected
• Solid or stranded
mm
2
1 × (0.5 ... 4)
3)
, 2 × (0.5 ... 2.5)
3)
• Finely stranded without end sleeve
mm
2
--
• Finely stranded with end sleeve (DIN 46228-1)
mm
2
1 × (0.5 ... 2.5)
3)
, 2 × (0.5 ... 1.5)
3)
• AWG cables, solid or stranded
AWG
2 × (20 ... 14)
Connection type
Spring-type terminals
Operating devices
mm
3.0 x 0.5
Conductor cross-sections (min./max.),
1 or 2 conductors can be connected
• Solid or stranded
mm
2
2 × (0.25 ... 1.5)
• Finely stranded without end sleeve
mm
2
--
• Finely stranded with end sleeve (DIN 46228-1)
mm
2
2 × (0.25 ... 1.5)
• AWG cables, solid or stranded
AWG
2 × (24 ... 16)
© Siemens AG 2016