Non-contact safety switches, IN4000 Standard, IN40-D0303K, Design: Cylindrical, Release zone: 6 mm, Dimensions: M18 x 90.5 mm, Usable thread length: 55 mm, Installation in metal: Non-flush, Connection type detail: Connector, M12, 4-pin, Output type: Semiconductor output, clocked, Performance Level: PL e, Change note: The devices fulfill category 3 and PFHD 1.0 × 10-8. Please check whether the device meets the desired safety requirements of the application. If you have any questions, contact your sales organization.