Siemens SIRIUS 3SK1

3.5 3SK1 system
3.5.1 3SK1 Standard system con󹪝guration
Components and wiring
A 3SK1 Standard system can comprise the following devices:
• Basic units (one basic unit per system)
– 3SK1111 Standard basic unit instantaneous (with relay outputs) (Page 54)
– 3SK1112 Standard basic unit instantaneous (with semiconductor outputs) (Page 60)
• Output expansions
– Output expansion 3SK1211 (Page 90)
– Output expansion 3SK1213 (Page 94)
– 3RQ1 output expansion
Connect the devices by wiring them.
Typical 3SK1 Standard system con󹪝guration
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① 3SK1 Standard basic unit
② 3SK1211 output expansion
③ 3SK1213 output expansion
Description
3.5 3SK1 system
SIRIUS 3SK1 Safety Relays and 3RQ1 Positively-Driven Coupling Relays
36 Equipment Manual, 05/2021, A5E02526190021A/RS-AE/005