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Siemens
Siemens Sirius Safety relay, screw terminal, 3NO + 1NC, 24V Part number 3SK1111-1AB30
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Product Description
This SIRIUS safety relay basic unit features 3 NO contacts for enabling circuits and 1 NC contact for signaling. It operates on 24V AC/DC and is suitable for safety circuits with up to SIL 3 or PL e safety requirements.
Technical Specifications
| Connection Type | screw terminal |
| Depth | 121.6 mm |
| Evaluation inputs | One- and two-channel |
| Height | 100 mm |
| IP Rating | IP20 |
| Model | Basic device |
| Number of outputs, signalling function, undelayed, with contact | 1 |
| Operating Period | mechanical service life (operating cycles) typical 10 000 000 |
| Packaging size / unit | pc(s) |
| Part Depth (mm) | 121.6mm |
| Part Height (mm) | 100mm |
| Part Width (mm) | 22.5mm |
| Performance level according to EN ISO 13849-1 | Level e |
| Power consumption | 2 W |
| SIL according to IEC 61508 | 3 |
| Suitable for monitoring of emergency-stop circuits | Yes |
| Suitable for monitoring of magnetic switches | Yes |
| Suitable for monitoring of optoelectronic protection equipment | Yes |
| Suitable for monitoring of position switches | Yes |
| Supply Voltage | 24V (AC/DC) |
| Temperature: Operating | -25°C to 60°C |
| Type of control voltage 1 | AC/DC |
| Type of control voltage 2 | AC/DC |
| Type of electric connection | Screw connection |
| Voltage Frequency Range | 50 / 60 Hz |
| Voltage type (operating voltage) | AC/DC |
| Voltage type (supply voltage) | AC/DC |
| Width | 22.5 mm |
| With approval according to UL | Yes |
| With approval for TÜV | Yes |
| With feedback circuit | Yes |
| With start input | Yes |
| Country of Origin | Germany |
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