INK Cascading circuit 3SK1
INF Feedback circuit 3SK1
Wiring with the 3RW55 Failsafe soft starter
Note
Adaptation of the output current at the failsafe output Q2
If the maximum permissible output current at the failsafe output Q2 of the 3SK1 safety relay is
not sucient, use a coupling link and adapt the magnitude of the output current to switch on
the required contactor Q21.
Alternatively, use a 3SK1 safety relay with relay outputs for this.
The example shows the 3RW55 Failsafe soft starter with a Standard circuit.
0
4
4
/
/
3(
///
777
4
0
89:
/
Example circuits
A.4 3RW55 Failsafe soft starter
SIRIUS 3RW55 and 3RW55 Failsafe Soft Starters
350 Equipment Manual, 02/2022, A5E35630887002A/RS-AF/006
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