Proximity switches, inductive sensors, range: E55 limit switch style series, connection: 3-wire, design (external dimensions): M12 x 1 mm, rated operating voltage: Ue= 10 - 30 V DC, rated switching distance: Sn= 4 mm, installation type: non-flush, switching type: NPN, 2 m connecting cable, contacts S = normally open: 1 S, material: plastic, protection class: IP66, standards and regulations: IEC/EN 60947-5-2