Basic switch with enhanced corrosion protection for position switches in metal housing, according to EN 50041, 1x (M20 x 1.5), 1S/1Ö, slow contacts without actuator head. The SIRIUS 3SE5 mechanical safety switches are designed for the position and location detection of machine parts, as well as for monitoring the position of safety devices. The modular design of the 3SE5 position switches allows for a wide variety of configurations with a small number of stock types. The extensive variety of connectors and rollers meets nearly all requirements in industrial everyday use. LEDs indicate the current status of the device. Thanks to quick connection technology, connection times can be significantly reduced. Switching points and mounting according to EN 50047 and EN 50041. The devices are globally certified (IEC, UL). With the appropriate switch configuration, the highest safety requirements according to PL e or SIL 3 can be met. The integrated ASIsafe electronics require low power consumption. Various housing sizes with different switching elements in plastic or metal or compact design are available. Some variants are optionally available with LED status display and M12 connector. The 3SF1 series, with direct connection to the AS-Interface bus system, completes the portfolio. Depending on the version, accessories such as actuator heads and connectors, as well as additional mounting and connection accessories, are available. Safety is a SIRIUS business.