Proximity switch, inductive sensors, range: E56 Pancake series, connection: 4-wire, design (external dimensions): 79 x 79 x 39 mm, rated operating voltage: Ue= 10 - 42 V DC, rated switching distance: Sn= 40 mm, installation type: non-flush, switching type: NPN, PNP, plug connection M12 x 1, contacts Ö = normally closed: 1 Ö, contacts S = normally open: 1 S, material: plastic, protection class: IP67, standards and regulations: IEC/EN 60947-5-2