Siemens 3TK2845, Manual

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Mounting, Wiring, Initial Start-up
3TK2845 Multifunction Device Manual
4-4
GWA 4NEB 926 2087-22 DS 01
4.2 Wiring
The 3TK2845 multifunction device is available either with screw connections or
spring-loaded terminal connections.
Please refer to the table below for the required terminal cross sections and
maximum permissible torques.
Fig. 4-3: Overview of the terminal cross sections/maximum permissible torques
Warning
Use a power pack complying with IEC 60 536 safety class III (SELV or PELV) as
the power supply.
Caution
For the non-floating outputs (24, 44, 48, 52) it must be ensured that the actuators
or consumers to be switched have the same earth potential as the 3TK2845.
Notice
External loads must be equipped with a protective circuit which is suitable for the
respective load (e.g. RC elements, varistors, suppressors) to reduce electromag-
netic interference and to enhance the service life of the OSSD.
The 3TK2845 multifunction device is ready for operation after the power supply
is connected at terminals A1 and A2. The device runs a self-test during which
1
2
5
3
4
4
5
3
7
8
7
DIN ISO 2380 -1A 0,5 x 3
3RP1903
~10°
~10°
3TK2845-1... 3TK2845-2...
∅ 5 ... 6 mm / PZ2
0.8 ... 1.2 Nm
7 ... 10.3 lb-in
—
1 x 0.5 ... 4.0
mm²
2 x 0.5 ... 2.5
mm²
2 x 0.25 ... 1.5
mm²
2 x 0.5 ... 1.5
mm²
1 x 0.5 ... 2.5
mm²
2 x 0.25 ... 1.5
mm²
2 x 0.25 ... 1.5
10
10
10