Technical Parameters Category Specification Model MTL5576 Product Type Safety Relay for Safety Light Curtains & Scanners (OSSD Devices) Safety Standards IEC 61508, IEC 62061, ISO 13849 Safety Level SIL 3 (IEC 61508) / PL e (ISO 13849) Input Channels 2 for monitoring OSSD signals from the safety sensor. Input Type Solid-state OSSD (PNP) signals, typically 24V DC. Outputs 3 safety relay outputs (force-guided contacts). Contact Rating (Output) Typically 6 A, 250 V AC / 5 A, 30 V DC Supply Voltage 24V DC (with a wide range, e.g., 19.2 - 30V DC) Configuration Via DIP switches for modes like Reset, Muting, and Test. Key Features OSSD Monitoring Yes. Continuously monitors both channels for cross-circuit faults and shorts to supply/ground. Muting Function Configurable to allow temporary, safe suspension of the safety function (e.g., for material handling). Fault Detection Yes. Detects faults in the sensor, wiring, and internal circuitry. Status Indication Comprehensive LED indicators for Power, Input Status, Output Status, and Faults. Diagnostics Clear LED status for easy troubleshooting of the safety loop. Mounting 35 mm DIN rail. Operating Temperature -25°C to +55°C / -40°C to +70°C (depending on variant)