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Datasheet generated 2026-10-07
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Siemens SIRIUS 3SK1 safety relay 3SK1121-1CB44

Siemens · Safety & Detection · Safety Relays · Germany · siemens.com
Part Number
3SK1121-1CB44  ·  HS 8536.90
Siemens SIRIUS 3SK1 safety relay 3SK1121-1CB44

Siemens 3SK1121-1CB44 — SIRIUS 3SK1 safety relay. Compact safety relay for emergency-stop, safety-gate and light-curtain monitoring per EN ISO 13849. Advanced relay tidsforsinket 5-300s.

Technical Specifications

Manufacturer part number (MPN)3SK1121-1CB44
EAN / GTIN4011209913615
HS code8536.90
Sales unitpcs
Power consumption2.5 W
Voltage type (operating voltage)DC
Type of control voltage 1DC
Type of control voltage 2DC
ModelBasic device
Suitable for monitoring of valvesNo
Suitable for monitoring of tactile sensorsNo
Suitable for monitoring of proximity switchesNo
Type of electric connectionScrew connection
Rated control supply voltage DC24 V
Voltage type for actuatingDC
Evaluation inputsOne- and two-channel
Stop category according to IEC 602040 + 1
Performance level according to EN ISO 13849-1Level e
SIL according to IEC 615083
With approval for BG BIANo
Width22.5 mm
Height100 mm
Depth121.6 mm
Country of originGermany

Properties

MOQ1

Cross-References

Attached Documents