hysteresis 3 ... 20 % of Sr operating temperature -25 ... +75 °C output current < 200 mA output indicator LED red connection types connector M8 nominal sensing distance Sn 8 mm current consumption max. (no load) 10 mA housing material brass nickel plated housing length 32 mm IFFM 20N37A3/S35L dimension 20 mm output circuit NPN break function (NC) voltage drop Vd < 2 VDC material (sensing face) PBT manufacter SKU IFFM 20N37A3/S35L mounting type flush protection class IP 67 type rectangular reverse polarity protection yes voltage supply range +Vs 10 ... 30 VDC switching frequency < 500 Hz short circuit protection yes