Connection Of Actuators - Siemens SIRIUS 3SK1 Manual

Safety systems - General information
4.3 Basic terminology
4.3.13

Connection of actuators

Note
To achieve the Performance Level / Safety Integrity Level given in the following examples,
the actuators shown must be monitored in the feedback circuit of the corresponding safety
relay.
Note
For capacitive and inductive loads, we recommend an adequate protective circuit. In this
way, electromagnetic interference can be suppressed and contact service life increased.
You can find additional information in SIRIUS Innovations - SIRIUS 3RT2
Contactors/Contactor Assemblies manual
(http://support.automation.siemens.com/WW/view/en/60306557).
Actuator wiring up to PL c / Cat. 2 in accordance with ISO 13849-1 or SILCL 1 in accordance with
IEC 62061
Figure 4-5
40
PL c / Cat. 2 in accordance with ISO 13849-1 or SILCL 1 in accordance with IEC 62061
SIRIUS 3SK1 safety relays
Manual, 06/2018, A5E02526190021A/RS-AD/004