3SK1 devices
5.2 3SK1 Advanced
3SK1 safety relays
Manual, 04/2013, A5E02526190021A/RS-AA/01
75
5.2.10 3SK1120 Advanced basic unit instantaneous (with solid-state outputs)
5.2.10.1 Device features
MLFB:
3SK1120-xAB40 24 V DC
(x) 1 = screw-type terminal; 2 = push-in terminal
Additional or alternative device features
● 1 safety-related solid-state output
● The following design variants are possible for the 3SK1120 Advanced basic unit:
– Operation without using device connectors
WARNING
Operation without using device connectors
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
Note
In operation using device connectors and using at least one output expansion
(3SK1211, 3SK1213), up to PL e / Cat. 4 in accordance with ISO 13849-1 or SILCL 3
in accordance with IEC 62061 can be achieved.
WARNING
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 in the case of a function
test interval (state change of the outputs) ≤ 1 year.
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