Basic switch in plastic housing, 40 mm according to DIN EN 50041, device connection 1x (M20 x 1.5), 1S/2Ö, with M12 connector, 4-pole, 2Ö connected. Pin assignment: Pin1=21, Pin2=22, Pin3=31, Pin4=32, maximum 250 V and 4 A. Mechanical safety switches SIRIUS 3SE5 for position and location detection of machine parts and monitoring of safety devices. The modular design of the 3SE5 position switches allows for a wide variety of variants with a small number of stock types. The large variety of connectors and rollers meets nearly 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 are available, with different switching elements, in plastic or metal or compact design. Some variants are optionally available with LED status indicator and M12 connector. The 3SF1 series with direct connection to the AS-Interface bus system rounds off the portfolio. Depending on the version, drive heads and connectors as well as additional mounting and connection accessories are available as accessories. Safety is a SIRIUS business.