SIEMENS
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Siemens IC 10 · 2017
Contactor Relays
3TH4 contactor relays, 8- and 10-pole
5
1)
Coils for USA, Canada and Japan: 0.85 to 1.1 x
U
s
at 60 Hz.
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
(suppression diode 6x to 9x); diode assembly 2x to 6x;
varistor +2 to 5 ms).
Contactor relays
Type
3TH42, 3TH43
Control
Solenoid coil operating range
• AC operation
0.8 ... 1.1 x
U
s
1)
• DC operation (except 24 V)
0.8 ... 1.1 x
U
s
-
At 24 V DC
0.8 ... 1.2 x
U
s
Solenoid coil power consumption
(for cold coil and 1.0 x
U
s
)
• AC operation, 50 Hz, standard version
- Closing
VA/p.f.
68/0.82
- Closed
VA/p.f.
10/0.29
• AC operation, 50/60 Hz, standard version
-
Closing, 50 Hz
VA/p.f.
77/0.81
-
Closed, 50 Hz
VA/p.f.
11/0.28
-
Closing, 60 Hz
VA/p.f.
71/0.75
-
Closed, 60 Hz
VA/p.f.
9/0.27
• AC operation, 50 Hz, USA/Canada
- Closing
VA/p.f.
68/0.82
- Closed
VA/p.f.
10/0.29
• AC operation, 60 Hz, USA/Canada
- Closing
VA/p.f.
75/0.76
- Closed
VA/p.f.
9.4/0.29 ... 0.3
• AC operation, 50 Hz, standard version
- Closing
VA/p.f.
80/0.8
- Closed
VA/p.f.
10.7/0.29
• AC operation, 60 Hz, standard version
- Closing
VA/p.f.
75 ... 90/0.73
- Closed
VA/p.f.
8.5 ... 10.7/0.29 ... 0.3
• DC operation up to 250 V
Closing = Closed
W
6.2
Permissible residual current of the electronics
(with 0 signal)
• For AC operation
8 mA x (220 V/
U
s
)
• For DC operation
1.25 mA x (220 V/
U
s
)
Operating times
at 1.0 x
U
s
2)
AC operation
• Closing
-
ON-delay NO
ms
10 ... 25
-
OFF-delay NC
ms
7 ... 20
• Opening
-
OFF-delay NO
ms
5 ... 18
-
ON-delay NC
ms
7 ... 20
DC operation
• Closing
-
ON-delay NO
ms
30 ... 70
-
OFF-delay NC
ms
28 ... 65
• Opening
-
OFF-delay NO
ms
10 ... 20
-
ON-delay NC
ms
15 ... 25
Arcing time
ms
10
© Siemens AG 2016