SIEMENS
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Siemens IC 10 · 2017
Contactor Relays
3TH2 miniature contactor relays, 4- and 8-pole
5
1)
Applies to 50/60 Hz coil:
Operating range at 60 Hz: 0.85 to 1.1 x
U
s
;
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 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 10x; diode assembly 2x to 6x;
varistor +2 to 5 ms).
Contactor relays
Type
3TH2
Short-circuit protection
Short-circuit test with fuse links, operational class gG:
LV HRC, type 3NA; DIAZED, type 5SB; NEOZED, type 5SE
with short-circuit current
I
k
= 1 kA acc. to IEC 60947-5-1
A
6
Conductor cross-sections
Auxiliary conductors
(1 or 2 conductors can be connected)
Screw terminals
• Solid or stranded
mm
2
2 x (0.5 ... 2.5)
• Finely stranded with end sleeve
mm
2
2 x (0.5 ... 1.5)
• Terminal screw
M3
Auxiliary conductors
(1 or 2 conductors can be connected)
Flat connectors
• Finely stranded
When using a plug-in sleeve
- 6.3 ... 1
mm
2
0.5 ... 1
- 6.3 ... 2.5
mm
2
1 ... 2.5
Solder pin connections
(for printed circuit boards only)
• Solder pin cross-section
(does not apply to plug-in
bases)
mm
2
0.8 x 1.2
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
)
• 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
• DC operation
Closing = Closed
W
3
Permissible residual current of the electronics
(with 0 signal)
AC operation
mA
3 x (220 V/
U
s
)
DC operation
mA
1 x (220 V/
U
s
)
Operating times at 1.0 x
U
s
2)
• AC operation
- Closing
ON-delay NO
ms
6 ... 17
OFF-delay NC
ms
5 ... 12
- Opening
OFF-delay NO
ms
3 ... 24
ON-delay NC
ms
5 ... 20
• DC operation
- Closing
ON-delay NO
ms
18 ... 42
OFF-delay NC
ms
15 ... 26
- Opening
OFF-delay NO
ms
3 ... 5
ON-delay NC
ms
4 ... 10
• Arcing time
ms
10
© Siemens AG 2016