Additional or alternative device features
• 1 safety-related semiconductor output
• The following design variants are possible for the 3SK1120 Advanced basic unit:
– In operation without using device connectors, up to PL e/Cat. 4 in accordance with ISO
13849-1 or SILCL 3 in accordance with IEC 62061 can be achieved for devices from E02/
V 1.1.0.
WARNING
Operation without using device connectors for E01/V1.0.0 devices
In operation without using device connectors, up to PL c / Cat. 2 in accordance with
ISO 13849-1 or SILCL 2 in accordance with IEC 62061 can be achieved.
– Operation using device connectors
In operation using device connectors and using at least one output expansion (3SK1211,
3SK1213) or one 3RM1 Failsafe motor starter, up to PL e/Cat. 4 in accordance with
ISO 13849-1 or SILCL 3 in accordance with IEC 62061 can be achieved.
WARNING
Continuous operation
Devices up to E01/V1.0.0:
In continuous operation for PL e/Cat. 4 in accordance with ISO 13849-1 or SILCL 3 in
accordance with IEC 62061, the key safety values apply where the function test interval
(state change of the outputs) ≤ 1 year.
Devices from E02/V1.1.0:
In continuous operation for PL e/Cat. 4 in accordance with ISO 13849-1 or SILCL 3 in
accordance with IEC 62061, the key safety values apply where the function test interval
(state change of the outputs) ≤ 20 years.
3SK1 / 3RQ1 devices
5.2 3SK1 Advanced
SIRIUS 3SK1 Safety Relays and 3RQ1 Positively-Driven Coupling Relays
Equipment Manual, 05/2021, A5E02526190021A/RS-AE/005 85
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