output current < 200 mA reverse polarity protection yes IFRM 12N3701/S35L dimension 12 mm material (sensing face) PBT hysteresis 3 ... 25 % of Sr output indicator 3 port LED red output circuit NPN break function (NC) short circuit protection yes type cylindrical threaded protection class IP 67 manufacter SKU IFRM 12N3701/S35L housing length 50 mm switching frequency < 2 kHz housing material brass nickel plated nominal sensing distance Sn 4 mm voltage drop Vd < 3 VDC voltage supply range +Vs 12 ... 30 VDC operating temperature -25 ... +75 °C mounting type flush connection types connector M8 current consumption max. (no load) 18 mA