SICK STR1-SASU0AC5 RFID Safety Switch (1072709)
Includes Sensor (1073228) + Actuator (1073223)
The SICK STR1-SASU0AC5 is a high-level coded RFID safety switch that provides non-contact monitoring of safety doors and guards. With SIL3/PL e certification, dual OSSD outputs, and a rugged VISTAL® housing, it’s ideal for machine safety applications requiring tamper-proof protection and reliable switching under harsh industrial conditions.
Technical Specifications
Model: STR1-SASU0AC5 SICK
Part No.: 1072709
System Components: Sensor (1073228) and actuator (1073223)
Sensor Principle: RFID, uniquely coded
Actuation Directions: 5 possible directions
Active Sensor Surfaces: Top, Left, Right
Coding Level: High (EN ISO 14119)
Functional Performance
Assured Switch-On Distance (Sao): 10 mm (–30 °C to +70 °C)
Assured Switch-Off Distance (Sar): 25 mm
Number of Safe Outputs (OSSDs): 2
Auxiliary Output (AUX): 1 (complementary switching behavior)
Switch-On Time: 2.5 s
Response Time: 40 ms
Release Time: 100 ms
Risk Time: 80 ms
Electrical Interface
Supply Voltage (Vs): 24 V DC (Range: 19.2 V DC to 28.8 V DC)
Power Consumption: 50 mA
Output Type: Self-monitoring semiconductor outputs (OSSDs)
Max Output Current: ≤ 100 mA
Protection Class: III (IEC 61140)
UL Classification: Class 2
Mechanical Data
Enclosure Rating: Typically IP67 (dependent on application)
Housing Material: VISTAL® (reinforced plastic for high mechanical resistance)
Dimensions (W x H x D): 40 mm × 18 mm × 26 mm
Weight: Approx. 82 g
Safety-Related Parameters
Safety Integrity Level (SIL): SIL 3 (IEC 61508)
Performance Level (PL): PL e (EN ISO 13849)
Category: Cat. 4 (EN ISO 13849)
PFHD (Mean Dangerous Failure Rate): 5.21 × 10⁻⁹
Mission Time (TM): 20 years
Type Classification: Type 4 (EN ISO 14119)
Safe State on Fault: At least one OSSD is OFF
Certificates and Compliance
- European Conformity (CE)
- UKCA Compliant
- cULus Listed
- RCM Certified
- FCC Approved
- TÜV Süd Certified
- RoHS Compliant
Applications
Ideal For:
- Safety door and guard position monitoring
- Robotics and automated production cells
- High-risk machines with strict safety integrity requirements
- Tamper-resistant applications requiring high coding level
- Areas with mechanical vibration and harsh industrial conditions
Key Features & Benefits
✅ High-Level RFID Coding: Prevents bypassing and ensures unique actuation security.
✅ PL e / SIL3 Certified: Meets the highest safety standards for machinery protection.
✅ Non-Contact Operation: No mechanical wear, misalignment-resistant design.
✅ Dual OSSD Outputs: Reliable, monitored switching for integration with safety controllers.
✅ Compact and Durable: VISTAL® housing resists impact, chemicals, and mechanical stress.
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