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Siemens IC 10 · 2017
Contactors for Special Applications
SIRIUS 3RT.4 contactors for resistive loads (AC-1), 3-pole
4
1)
In the case of DC coils, increased starting currents (2.6 A on average)
arise during the first 200 ms. For direct control from a PLC, we recommend
special 3RT204.-.KB4. coupling contactors with adapted power
consumption, suitable for a PLC output current of 2 A
(see page 3/64)
.
2)
The OFF-delay of the NO contact and the ON-delay of the NC contact
are increased if the contactor coils are attenuated against voltage peaks
(varistor +2 to 5 ms, diode assembly: 2x to 6x).
Type
3RT244.-.A...
3RT244.-.N.3.
3RT1456
3RT1466
3RT1476
Size
S3
S6
S10
S12
Control
Solenoid coil
operating range
(AC/DC)
0.8 ... 1.1 x
U
s
Power consumption of the solenoid coils
(for cold coil and 1.0 x
U
s
)
• AC operation, 50 Hz,
standard version
Closing
VA
296
--
--
P.f.
0.61
--
--
Closed
VA
19
--
--
P.f.
0.38
--
--
• AC operation, 50/60 Hz,
standard version
Closing
VA
348/296
--
--
P.f.
0.62/0.55
--
--
Closed
VA
25/18
--
--
P.f.
0.35/0.41
--
--
• AC operation, 50/60 Hz,
for USA/Canada
Closing
VA
326/326
--
--
P.f.
0.62/0.55
--
--
Closed
VA
22/22
--
--
P.f.
0.38/0.4
--
--
• AC/DC operation
Closing for AC operation
VA
--
163
--
P.f.
--
--
--
Closed for AC operation
VA
--
3.1
--
P.f.
--
--
--
Closing for DC operation
W
--
76
1)
--
Closed for DC operation
W
--
1.8
--
Power consumption of the
solenoid operating mechanism
(for cold coil and rated range
U
s min
...
U
s max
)
• Conventional operating mechanisms
-
AC operation
Closing for
U
s min
/
U
s max
VA
--
250/300
490/590
700/830
P.f.
--
0.9
Closed at
U
s min
/
U
s max
VA
--
4.8/5.8
5.6/6.7
7.6/9.2
P.f.
--
0.8
0.9
-
DC operation
Closing for
U
s min
/
U
s max
W
--
300/360
540/650
770/920
Closed at
U
s min
/
U
s max
W
--
4.3/5.2
6.1/7.4
8.5/10
• Solid-state operating mechanism
-
AC operation
Closing for
U
s min
/
U
s max
VA
--
190/280
400/530
560/750
P.f.
--
0.8
Closed at
U
s min
/
U
s max
VA
--
3.5/4.8
5.5/8.5
5.6/9
P.f. at
U
s min
/
U
s max
--
0.6/0.6
0.5/0.4
-
DC operation
Closing for
U
s min
/
U
s max
W
--
250/320
440/580
600/800
Closed at
U
s min
/
U
s max
W
--
2.1/2.8
2.8/3.4
3/3.6
PLC control input
(IEC 61131-2, type 2)
V DC
--
24, at
30 mA power consumption
• Operating range
V DC
--
17 ... 30
Operating times for 1.0 x
U
s
2)
• AC operation
Closing delay
ms
13 ... 50
50 ... 70
--
Opening delay
ms
10 ... 21
38 ... 57
--
• DC operation
Closing delay
ms
--
50 ... 70
--
Opening delay
ms
--
38 ... 57
--
Operating times
(Total break time = Opening delay + Arcing time)
• Conventional operating mechanisms
- For
U
s min
...
U
s max
Closing delay
ms
--
25 ... 50
35 ... 50
50 ... 70
Opening delay
ms
--
40 ... 60
50 ... 80
70 ... 100
• Solid-state operating mechanism, actuated via A1/A2
- For
U
s min
...
U
s max
Closing delay
ms
--
100 ... 120
110 ... 130
125 ... 150
Opening delay
ms
--
80 ... 100
• Solid-state operating mechanism, actuated via PLC input
- For
U
s min
...
U
s max
Closing delay
ms
--
40 ... 60
50 ... 65
65 ... 80
Opening delay
ms
--
80 ... 100
• Arcing time
ms
--
10 ... 15
© Siemens AG 2016