3SK1121-1CB41
The Siemens SIRIUS 3SK1121-1CB41 is a relay output type safety relay that provides two sets of instantaneous and two sets of delayed (0.05~3 seconds) normally open safety contacts, screw terminal wiring, rated voltage 24VDC, and meets PL e, Cat.4 safety class. It is suitable for safety circuits that require short-delay shutdown.
Product Positioning
The 3SK1121-1CB41 is a SIRIUS 3SK1 series relay-type safety relay with a built-in short delay function of 0.05 to 3 seconds. It uses screw terminal wiring and is suitable for safety circuits that require rapid buffer stop.
Core Product Advantages and Features
Relay mechanical contact output
It provides safety output using mechanical relay contacts and is suitable for general industrial safety interlock circuits.
Adjustable delay from 0.05 to 3 seconds
The delayed enable output range is relatively short, making it suitable for machine applications that require rapid buffer shutdown.
Screw terminal wiring
Standard screw terminal wiring method, compatible with existing wiring installation practices.
High security level certification
Compliant with ISO 13849-1 PL e, Cat.4 and IEC 62061/61508 SIL3 level
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3SK1121-1CB42
The Siemens SIRIUS 3SK1121-1CB42 is a relay output type safety relay that provides two sets of instantaneous and two sets of delayed (0.5~30 seconds) normally open safety contacts, screw terminal wiring, rated voltage 24VDC, and meets PL e, Cat.4 safety class. It is suitable for safety circuits that require long delay shutdown.
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3SK1121-1AB40
The Siemens SIRIUS 3SK1121-1AB40 is a relay output type safety relay, providing 3 sets of normally open safety contacts and 1 set of normally closed signal contacts. It does not have a delay function, uses screw terminal wiring, has a rated voltage of 24VDC, meets PL e and Cat.4 safety classes, and is suitable for general safety interlock circuits.
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3SK1120-1AB40
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