Basic switch without drive head, metal housing, in accordance with EN 50041 ASIsafe integrated AS-i status: 1:F-IN1, 2:F-IN2 3:AS-i/FAULT snap-action switching elements 2Ö/1S with M12 connector 4-pin channel 1 to Ö, channel 2 to Ö Mechanical safety switches SIRIUS 3SF11 for monitoring the position of movable protective devices with direct connection to the AS-Interface bus system.The mechanical safety switches are compact thanks to integrated ASIsafe electronics, which require low power consumption. 3D-coded actuators guarantee a high level of protection against manipulation. LEDs show the current status of the device. The switches can be used for the highest safety requirements in accordance with PL e or SIL 3. Various housing sizes are available in plastic or metal. Versions with a separate actuator, with guard locking or as a safety hinge switch are also available. A series with a high protection rating of IP69K rounds off the portfolio. Depending on the version, drive heads, separate actuators, plugs and other mounting/connection accessories are available as accessories.Safety is a SIRIUS business.