SIEMENS
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Siemens IC 10 · 2017
Power Contactors for Switching Motors
3TF2 miniature contactors, 3-pole
3
1)
Applies to 50/60 Hz coil:
At 50 Hz, 1.1 x
U
s
,
side-by-side mounting and 100 % ON period the
max. ambient temperature is +40 °C.
2)
The 3TX4490-1J additional load module is recommended
for higher residual currents;
see page 3/150
.
3)
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
(noise suppression diode 6 to 10 times; diode assembly
2 to 6 times, varistor +2 to 5 ms).
Contactor
Type
3TF2
Size
00
Control
Solenoid coil operating range
1)
0.8 ... 1.1 x
U
s
Power consumption of the solenoid coils
(for cold coil and 1.0 x
U
s
)
Standard version
• AC operation, 50 Hz
Closing
VA
15
P.f.
0.41
Closed
VA
6.8
P.f.
0.42
• AC operation, 60 Hz
Closing
VA
14.4
P.f.
0.36
Closed
VA
6.1
P.f.
0.46
• AC operation, 50/60 Hz
1)
Closing
VA
16.5/13.2
P.f.
0.43/0.38
Closed
VA
8.0/5.4
P.f.
0.48/0.42
For USA and Canada
• AC operation, 50 Hz
Closing
VA
14.6
P.f.
0.38
Closed
VA
6.5
P.f.
0.40
• AC operation, 60 Hz
Closing
VA
14.4
P.f.
0.30
Closed
VA
6.0
P.f.
0.44
• DC operation
Closing = Closed
W
3
Permissible residual current of the electronic circuit
2)
(with 0 signal)
• AC operation
mA
3 x (230 V/
U
s
)
• DC operation
mA
1 x (230 V/
U
s
)
Operating times for 0.8 ... 1.1 x
U
s
3)
Total break time = Opening delay + Arcing time
Values apply with coil in cold state and at operating temperature
for operating range
• AC operation
Closing delay
ms
5 ... 19
Opening delay
ms
2 ... 22
-
Dead interval
To use the 3TF2 AC-operated contactor in reversing an additional dead
interval of 50 ms is required along with an NC contact interlock.
• DC operation
Closing delay
ms
16 ... 65
Opening delay
ms
2 ... 5
• Arcing time
ms
10 ... 15
Operating times for 1.0 x
U
s
3)
• AC operation
Closing delay
ms
5 ... 18
Opening delay
ms
3 ... 21
-
Dead interval
To use the 3TF2 AC-operated contactor in reversing an additional dead
interval of 50 ms is required along with an NC contact interlock.
• DC operation
Closing delay
ms
19 ... 31
Opening delay
ms
3 ... 4
• Arcing time
ms
10 ... 15
© Siemens AG 2016