Basic switch with enhanced corrosion protection for position switches 3SE513. Housing made of plastic according to DIN EN 50041. Device connection 1 x (M20 x 1.5) 2S/1Ö. Contact blocks without actuator head. Mechanical safety switches SIRIUS 3SE5 for position and location detection of machine parts as well as for position monitoring of safety devices. The modular design of the position switches 3SE5 allows for a wide variety of configurations with a small number of stock types. The large variety of connectors and rollers meets almost all requirements in industrial everyday life. 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 approved (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. Accessories such as actuator heads and connectors, as well as additional mounting and connection accessories, are available depending on the version. Safety is a SIRIUS business.