protection class IP 67 current consumption max. (no load) 10 mA hysteresis 3 ... 20 % of Sr housing length 75 mm mounting type quasi-flush IFRM 18N17A4/S14L dimension 18 mm material (sensing face) PBT tightening torque max. 40 Nm manufacter SKU IFRM 18N17A4/S14L reverse polarity protection yes nominal sensing distance Sn 8 mm output indicator 3 port LED red short circuit protection yes operating temperature -25 ... +75 °C connection types connector M12 output circuit NPN make function (NO) type cylindrical threaded voltage supply range +Vs 10 ... 30 VDC housing material brass nickel plated switching frequency < 500 Hz output current < 200 mA voltage drop Vd < 2 VDC