SICK TR4 Safety Switch, RFID Actuator Included, Valox

This safety switch is a non-contact RFID interlock designed for machine guarding and access monitoring in industrial environments. It operates as a sensor-and-actuator system with self-monitoring semiconductor outputs to provide safety-relevant switching for guarded machinery. The unit is intended for use where robust environmental protection and high functional safety are required, and it connects via an 8-pin M12 cable for integration with evaluation units and series wiring topologies.

• SIL 3 safety integrity level for higher risk reduction
• Category 4 design achieving PL e performance
• Two safe outputs providing independent OSSD signalling
• IP69K and IP67 enclosure resisting dust and high-pressure washdown
• Valox housing enabling operation up to 70°C ambient

• Used for guarding production-cell access points
• Suitable for food-industry washdown environments
• Ideal for safety series connections with diagnostics
• Can be used with safe evaluation units via M12 cable
• Used for multi-directional interlock of hinged guards

It accepts 24V DC within a 20.4V DC to 26.4V DC range.

It provides two self-monitoring semiconductor outputs (OSSDs) with monitored short-circuit and cross-circuit detection.

It uses an 8-pin M12 plug with a 0.2m cable

Multiple LEDs give status feedback and it supports series diagnostics via Flexi Loop when used with compatible evaluation units.

It meets vibration and shock tests and carries IEC60529 classification IP67 Plus IP69K for high-pressure cleaning.