Rotary lever actuator functional at -40 °C for position switch 3SE51 for 40/56/56XL mm, switching points according to EN 50041. The switching direction of the lever can be set to left/right or only left or only right. Delivery state is left/right. (Please order lever separately) Rotary actuator for position switch 3SE51/3SF11 SIRIUS 3SE5 for position and orientation detection of machine parts and position monitoring of protective devices for extreme environmental conditions down to -40 °C, e.g. in wind turbines, in the food industry or for rail applications. Due to their high degree of protection, the devices are suitable for use in extreme environmental conditions. They have increased corrosion protection, are shock and vibration tested and approved worldwide (IEC, UL). With the appropriate switch configuration, the highest safety requirements according to PL e or SIL 3 can be met. Various housing sizes in plastic or metal are available. Versions with separate actuators or with guard locking are also available. Depending on the version, various drives and separate actuators are available as accessories. Safety is a SIRIUS business.