short circuit protection yes switching frequency < 100 Hz special type full metal housing ( DuroProx ) current consumption max. (no load) 14 mA voltage drop Vd < 2 VDC IFRD 12N17A3/S14L dimension 12 mm reverse polarity protection yes voltage supply range +Vs 10 ... 30 VDC housing material stainless steel 1.4404 (V4A) output current < 200 mA type cylindrical threaded nominal sensing distance Sn 4 mm pressure static < 20 bar output circuit NPN make function (NO) mounting type quasi-flush hysteresis 2 ... 20 % of Sr connection types connector M12 operating temperature -25 ... +75 °C output indicator 3 port LED red housing length 50 mm manufacter SKU IFRD 12N17A3/S14L material (sensing face) stainless steel 1.4404 (V4A) protection class IP 68/67 (sensing face/sensor)