Siemens SIRIUS 3SK1

5.3.6.3 Design of 3SK1213-.A.20
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① Top cover 󹪞ap
② Display LEDs
③ DataMatrix code
④ Bottom cover 󹪞ap
⑤ Device identi󹪝cation label
⑥ Screw-type terminals
⑦ Spring-loaded terminal
5.3.6.4 Terminal assignment
Terminal Description
A1 +
A2 -
13 - 14 Safety-related output 1 (NO contact, relay contact)
23 - 24 Safety-related output 2 (NO contact, relay contact)
33 - 34 Safety-related output 3 (NO contact, relay contact)
41 - 42 NC circuit as feedback contact (NC, relay contact)
3SK1 / 3RQ1 devices
5.3 3SK1 output expansions
SIRIUS 3SK1 Safety Relays and 3RQ1 Positively-Driven Coupling Relays
96 Equipment Manual, 05/2021, A5E02526190021A/RS-AE/005