SICK TR4 Safety Switch, RFID Actuator Included, Valox

This safety switch is a non-contact RFID interlock designed for industrial guard monitoring and machine safety applications. It provides two safety outputs with self-monitoring semiconductor OSSDs and operates from a 24V DC supply. The device is built for harsh environments, offering waterproof protection and multiple actuation directions to suit Compact installations where robust, low-maintenance safety switching is required.

• SIL3 safety integrity supporting high-risk applications
• Category4 performance level PL e for risk reduction
• IP69K waterproof rating enabling high-pressure washdowns
• 200mA output current for direct signalling to controllers
• -25 to 70°C temperature range for varied ambient conditions

• Suitable for washdown production lines requiring IP69K protection
• Ideal for series-connected safety architectures with diagnostics
• Used with safe evaluation units in machine-guard systems
• Can be used for Compact installations requiring 25mm width
• Suitable for requiring multi-directional actuation

It has an 8-pin M12 plug with a 0.2m cable and supports long cable runs up to 200m.

At least one OSSD is forced OFF to maintain a safe state during faults.

The unit tolerates vibration (10Hz to 55Hz, 3.5mm) and shock up to 30g, 11ms.

Typical response time is 45ms with a release time of 360ms and switch-on time of around 2s.

The housing is Valox DR48 with IP67 and IP69K ratings, suitable for adverse environments.