SIEMENS
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Siemens IC 10 · 2017
Contactors for Special Applications
3TK20 miniature contactors for resistive loads (AC-1), 4-pole
4
1)
Applies to 50/60 Hz coil:
At 50 Hz, 1.1 x
U
s
, with 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 3/118)
.
Type
3TK20
Size
00
Control
Solenoid coil operating range
1)
0.8 ... 1.1 x
U
s
Solenoid coil power consumption
(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 at 1.0 x
U
s
• AC operation
-
Closing delay
ms
5 ... 18
-
Opening delay
ms
3 ... 21
-
Dead interval
To use the 3TK20 AC-operated contactor in reversing duty 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