RLY3-OSSD200 ReLy Safety Relay Evaluation Unit 2 OSSD | SICK

The Original New SICK RLY3-OSSD200 (1085344) is a safety relay evaluation unit from the ReLy series, designed to monitor safety sensors with OSSD outputs and switch safety-related circuits on and off. It achieves SIL 3 (IEC 61508), Category 4 and PL e (ISO 13849-1), with a PFHd of 1.0 × 10⁻⁹. The unit provides 2 safe enabling current paths, 2 application diagnostic outputs, and 1 test pulse output, with sensor monitoring via sequence monitoring. Configuration is performed via hard wiring, and the front connector uses spring terminals. The compact 18 mm housing and 130 g weight make it suitable for space-constrained safety panels.

Core Engineering Highlights:
SIL 3 (IEC 61508) / Category 4 / PL e (ISO 13849-1) | PFHd 1.0 × 10⁻⁹ | 2 safety inputs + 1 reset/EDM input | 2 safe enabling current paths + 2 application diagnostic outputs + 1 test pulse output | Sequence monitoring | Restart interlock | Automatic/manual reset | 24 V DC supply (16.8–30 V DC) | Spring terminal front connector | 18 mm housing width | –25°C to +55°C operating temperature

Key Features:

• Original New SICK RLY3-OSSD200 safety relay (part no. 1085344)

• Evaluation unit for safety sensors with OSSD outputs

• Safety integrity: SIL 3 (IEC 61508), Category 4, PL e (ISO 13849-1)

• 2 safety inputs for connecting OSSD safety devices

• 1 input for reset pushbutton or external device monitoring (EDM)

• 2 safe enabling current paths (relay outputs)

• 2 application diagnostic outputs (not safe) for status signalling

• 1 test pulse output (not safe) for diagnostics

• Sensor monitoring via sequence monitoring

• Restart interlock function

• Reset mode: automatic or manual

• External device monitoring (EDM) supported

• Hard-wired configuration (no software required)

• Front connector with spring terminals for fast wiring

• LED display elements for status diagnostics

• Compact 18 mm width for high-density safety panels

Applications:

• Monitoring safety light curtains and opto-electronic protective devices with OSSD outputs

• Magnetic safety switch monitoring

• Safety-related circuit switching in machine safety systems

• Safety applications requiring SIL 3 / PL e / Category 4

• Access protection and hazardous area safeguarding

Technical Specifications:

System Compatibility:

• Compatible with safety sensors featuring OSSD outputs, including opto-electronic protective devices and magnetic safety switches.

• Hard-wired configuration requires no proprietary software.

• Spring terminal front connector supports standard industrial wiring practices.

• Designed for DIN rail mounting in safety control panels.

• For detailed wiring, terminal assignment, and safety function integration, refer to the SICK ReLy operating instructions.

Related Products:

• RLY3-OSSD100 (1085343) – ReLy OSSD1, for opto-electronic protective devices

• RLY3-OSSD300 (1099969) – ReLy OSSD3, for opto-electronic protective devices and magnetic safety switches

• RLY3-OSSD400 (1099971) – ReLy OSSD4, for opto-electronic protective devices

• RLY3-EMSS100 (1085345) – ReLy EMSS1, for interlock safety switches

• RLY3-HAND100 (1085346) – ReLy HAND1, for two-hand control units

• RLY3-MULT100 (1100692) – ReLy MULT1, for multiple sensor types

PLC ERA is an independent industrial automation distributor supplying genuine Original New products through established global supply channels. All products are factory sealed when applicable and undergo quality inspection prior to shipment. SICK and ReLy are trademarks of SICK AG.