SICK RLY3-OSSD200 Safety Relay Module (1085344)
The SICK RLY3-OSSD200 is a compact, high-reliability safety relay module designed for monitoring safety sensors with OSSDs (Output Signal Switching Devices). Offering SIL3, Category 4, and PL e safety certifications, it ensures maximum machine and personnel protection in a wide variety of industrial applications.
Technical Specifications
Model: RLY3-OSSD200 SICK
Part No.: SICK 1085344
Product Type: Safety Relay Module
Applications: Evaluation unit for safety sensors with OSSDs
Stop Category: 0 (IEC 60204-1)
Safety-Related Parameters
Safety Integrity Level (SIL): SIL 3 (IEC 61508)
Performance Level (PL): PL e (ISO 13849-1)
Category: Category 4 (ISO 13849-1)
PFHD (Mean Probability of a Dangerous Failure per Hour): 1.0 × 10⁻⁹
Mission Time (TM): 20 years (ISO 13849-1)
Electrical Data
Supply Voltage (VS): 24 V DC (16.8 V to 30 V DC, PELV or SELV)
Residual Ripple: ≤ 2.4 V
Power Consumption: ≤ 2.5 W
Safety Inputs:
- Number: 2
- Input Voltage High: 24 V DC (11 V to 30 V)
- Input Voltage Low: 0 V DC (–3 V to 5 V)
- Input Current: 4 mA to 6 mA
- Test Pulse Width: ≤ 1 ms
- Test Pulse Rate: ≤ 10 Hz
Reset/EDM Input:
- Number: 1
- Same voltage and current parameters as safety inputs
Enabling Current Paths:
- Response Time: 10 ms
- Number of Contacts: 2 N/O positively guided
- Contact Material: Silver alloy, gold flashed
- Switching Voltage: 10 V AC/DC to 230 V AC/DC
- Switching Current: 10 mA to 6 A
- Total Current (combined contacts): 12 A
Mechanical Life: 10 million switching cycles (1 × 10⁷ cycles)
Overvoltage Category: III (according to EN 60664-1)
Rated Impulse Withstand Voltage (Uimp): 6 kV
Diagnostic Outputs:
- Number: 2
- Type: Push-pull semiconductor, short-circuit protected
- Output Voltage High: ≥ VS – 3 V
- Output Voltage Low: ≤ 3 V
- Output Current (PNP): ≤ 120 mA
Test Pulse Output:
- Number: 1 (PNP, short-circuit protected)
- Test Pulse Width: 2 ms
- Test Pulse Interval: 40 ms
Mechanical Data
Enclosure Rating: IP20 (sensor housing; use within enclosure for protection)
Housing Material: Plastic
Dimensions (W x H x D): 18 mm × 124.6 mm × 85.5 mm
Weight: Approx. 130 g
Mounting: DIN rail mounting (35 mm standard rail)
Ambient Conditions
Operating Temperature: –25 °C to +55 °C
Storage Temperature: –40 °C to +70 °C
Relative Humidity: 90%, non-condensing
Vibration Resistance: In accordance with IEC 60068-2-6
Shock Resistance: In accordance with IEC 60068-2-27
Certificates and Compliance
- European Conformity (CE)
- UK Conformity Assessed (UKCA)
- cULus Listed (UL508, CSA C22.2)
- China Compulsory Certification (CCC)
- RoHS Compliance
Applications
Ideal For:
- Monitoring safety light curtains, laser scanners, and safety mats with OSSDs
- Safe control of actuators and machine stops
- Safety interlocks and gate monitoring
- Small to medium-sized machinery safety systems
- Redundancy and diagnostic feedback circuits
Key Features & Benefits
✅ Highest Safety Standards: Achieves SIL3, PL e, and Category 4 levels.
✅ Compact Design: Slim 18 mm width saves valuable panel space.
✅ Reliable Operation: Fast 10 ms response time for critical safety actions.
✅ Comprehensive Diagnostics: Dual diagnostic outputs and test pulse capability for smart system monitoring.
✅ Easy Integration: Standard M12 sensor wiring and simple DIN rail mounting.
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