The TR4 Direct RFID safety switch is used for applications where a high level of manipulation protection is required. TR4 Direct has monitored semiconductor outputs (OSSD) and can therefore be connected directly to a safety controller. The safety switch is only released if a valid actuator is located within the response range of the TR4 Direct. Two actuation principles are available: For universally coded variants, any universally coded actuator can be located in the response range.

For uniquely coded variants, only the uniquely coded actuator that has been taught in with the matching code stored may be located within the response range. Up to 30 safety switches, all with LED status indicators, can be connected in series, thereby making electrical installation and service both straightforward and convenient.

Response range of up to 25 mm
Unique and universally-coded sensors up to enclosure rating IP 69K
Up to performance level PL e (EN ISO 13849)
Two OSSD safety outputs
Reliable series connection of up to 30 sensors possible (depending on the variant)
LED status indicator
Periphery indicator and magnetic holding force (optional)
Flexi-Loop-compatible M12 plug connector (depending on the variant)

High level of manipulation protection due to individually coded actuator (depending on the type)
High level of machine availability due to large door offset tolerances and periphery indicator
High level of reliability due to resistance to shock and vibration
Economical solution due to series connection of up to 30 sensors
Long product service life due to low-wastage and low-maintenance configuration
Fast diagnosis via LED status indicator
The devices are easy to clean, making them ideal for use in highly contaminated areas or applications with stringent hygienic requirements
Flexi Loop: Reliable series connection including diagnostics with minimal wiring work

Fields of applications
Monitoring of safety doors and removable guards
Applications requiring a high level of tamper-proofing
Applications where precise guidance of the safety door is not possible
Machinery and systems on which vibrations occur