SICK TR4 Safety Interlock Switch, Non-Contact Actuator Included, Fibreglass Polyester, Electronic

This safety interlock switch is a non-contact device designed to monitor access points and protect personnel in industrial automation environments. It uses RFID sensing to detect actuator presence and provides two safe outputs for integration into safety systems. The unit operates from a 24V DC supply and includes a pre-fitted actuator, making it suitable for immediate installation where space is limited and high ingress protection is required.

• SIL3 safety integrity delivers high functional safety performance
• Category 4 classification enables highest safety category compliance
• 2 safe outputs provide dual-channel monitoring capability
• Response time 45 MS minimises hazard reaction delay
• PVC cable with M12 plug supports long cable runs

• Suitable for guarding on automated production lines
• Used with safety controllers in Flexi Loop systems
• Ideal for environments requiring wash-down protection
• Can be used for access control on packaging machinery

The enclosure meets both IP67 and IP69K ratings for dust, water ingress and high-pressure washdowns.

It uses a 5-pin M12 plug and supports single-sensor connection or series connection via Flexi Loop nodes.

The device functions between -25°C and +70°C.

RFID sensing with a specified assured switch-on distance of 15mm and switch-off distance of 25mm governs actuation.