output current < 200 mA current consumption max. (no load) 10 mA output indicator 4 port LED red housing length 32 mm hysteresis 3 ... 20 % of Sr operating temperature -25 ... +75 °C IFFM 20N3501/S35L dimension 20 mm mounting type flush short circuit protection yes manufacter SKU IFFM 20N3501/S35L housing material brass nickel plated nominal sensing distance Sn 5 mm material (sensing face) PBT switching frequency < 1 kHz voltage supply range +Vs 10 ... 50 VDC voltage drop Vd < 3 VDC output circuit NPN break function (NC) reverse polarity protection yes connection types connector M8 type rectangular protection class IP 67