Siemens SIRIUS 3SK1

3SK1112-xBB40 monitored start
INF (feedback
circuit)
IN1/IN2
(sensor circuit)
or
INK
Safety-
related
output
Signaling
output
InputsOutputs
INS
A1/A2
20 ms 30 ms
35 ms
150 ms
0 ms
3SK1 / 3RQ1 devices
5.1 3SK1 standard
SIRIUS 3SK1 Safety Relays and 3RQ1 Positively-Driven Coupling Relays
66 Equipment Manual, 05/2021, A5E02526190021A/RS-AE/005