Position switch made of plastic housing according to DIN EN 50047, 31 mm device connection 1 x (M20 x 1.5) 1S/2Ö slow contacts, plunger type B with PTFE plunger, functional at -40 °C. Shock and vibration tested according to DIN EN 61373, category 1B. Mechanical position switches SIRIUS 3SE5 for position and location detection of machine parts and monitoring of protective devices for extreme environmental conditions down to -40 °C, e.g. in wind turbines, in the food industry, or for railway applications. The devices are suitable for use in extreme environmental conditions due to their high protection rating. They feature enhanced corrosion protection, are shock and vibration tested, and are globally certified (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. Additionally, variants with separate actuators or with locking are offered. Depending on the model, various drives and separate actuators are available as accessories. Safety is a SIRIUS business.