Siemens 3SK1121-1AB40

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Relay; Safety; 24 VDC; Single Channel; Screw Terminal; 3SK Series
Mfr. Part#: 3SK1121-1AB40
Allied Stock#: 70401095

RoHS Compliant Part



Datasheet Datasheet

Pricing (USD) & Availability
Standard Pricing
$354.050 (Each)
1 $354.050
3 $336.350

3 can ship immediately.

Request Lead Time

Minimum Quantity: 1

Multiples Of: 1


Function : Safety
Number of Channels : 1 Channel
Series : 3SK Series
Supply Voltage : 24 VDC
Terminal Type : Screw


Siemens SIRIUS 3SK Safety Relays

The new safety relays offer outstanding simplicity, flexibility, and efficiency. Their modular design ensures eased system planning, commissioning, and expansion. They support the implementation of simple safety functions such as EMERGENCY-STOP and protective door monitoring up to SIL 3 and PL e - easily, without any programming knowledge and in minimum time.

The safety relays are certified in accordance with IEC 62061 and ISO 13849-1 and are internationally applicable. To meet a variety of requirements, the safety relay now is available in two versions, 3SK1 and 3SK2. Both versions can be used in stand-alone, as well as integrated Solutions.


  • Clearly Structured Product Portfolio
  • Integrated Functionality
  • Minimal Time and Effort for Wiring
  • Motor Starter Integration
  • DIP Switches
  • Systems Configuration

  • Product Added to Cart
    Relay; Safety; 24 VDC; Single Channel; Screw Terminal; 3SK Series
    Allied Stock #: 70401095
    Mfr's Part #: 3SK1121-1AB40
    $354.050 Each
    Quantity added: