3SK1111-2AW20
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$178.82
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The Siemens 3SK1111-2AW20 is a high-quality SIRIUS safety relay designed for reliable industrial safety applications. This factory-grade device ensures dependable relay enabling circuits with a voltage range from 110 to 240 V AC/DC and is part of the Siemens 3SK1 series. Known for its outstanding simplicity and flexibility, it enables easy implementation of critical safety functions like emergency stop and protective door monitoring. With its modular design, the 3SK1111-2AW20 simplifies system planning and expands up to SIL 3 and PL e safety levels, meeting international certifications such as IEC 62061 and ISO 13849-1. It is suitable for various industrial automation environments requiring robust safety relay operation without programming complexity.
Key Features of Siemens 3SK1111-2AW20
- Standard safety relay with relay enabling circuits
- Rated voltage: 110 to 240 V AC/DC 50/60 Hz
- Three normally open (NO) safety contacts and one normally closed (NC) auxiliary contact
- SIL 3 and PL e capable, certified to IEC 62061 and ISO 13849-1
- Spring-loaded push-in terminals for quick wiring
- IP20 protection class ensuring safe internal component access
- Compact DIN rail mounting (dimensions: 22.5 x 100 x 121.6 mm)
- Automatic restart after power failure with monitored start
- Operating temperature range from -25 °C to +60 °C
Technical Specs of 3SK1111-2AW20
Explore Siemens 3SK1111-2AW20 technical data covering voltage, I/O, and communication to ensure system compatibility.
| Specification | Details |
|---|---|
| Rated Voltage | 110 – 240 V AC/DC (50/60 Hz) |
| Safety Outputs | 3 NO |
| Auxiliary Output | 1 NC |
| Connection Type | Spring-loaded push-in terminals |
| IP Rating | IP20 |
| Dimensions (W x H x D) | 22.5 x 100 x 121.6 mm |
| Operating Temperature | -25°C to +60°C |
| Safety Category | Category 4 |
Applications / Use Case
This Siemens 3SK1111-2AW20 is commonly used in industrial automation worldwide. It serves in safety monitoring for emergency stop circuits, protective door monitoring, and general machine safety functions. Its reliable switching and safety certification make it ideal for integration in production line systems and factory control panels where meeting strict safety standards is crucial. The relay's fast reaction times and flexible connections enhance overall plant safety and reduce downtime.
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