depth 15 mm front (optics) PMMA voltage drop Vd < 1,8 VDC reverse polarity protection yes light source pulsed red LED width / diameter 20 mm output indicator LED yellow sensing range Tb (at Tw min.) 12 ... 30 mm light indicator LED green protection class IP 67 sensing distance adjustment Teach-in wave length 660 nm output circuit NPN type background suppression sensing distance Tw 30 ... 200 mm voltage supply range +Vs 12 ... 30 VDC height / length 42 mm response time / release time < 0,5 ms output function light / dark operate operating temperature -25 ... +65 °C alignment / soiled lens indicator flashing light indicator type rectangular connection types connector M8 4 pin sensing range Tb (at Tw max.) 2 ... 200 mm suppression of reciprocal influence yes housing material plastic (PBT-ASA) output current < 100 mA current consumption typ. 28 mA current consumption max. (no load) 48 mA manufacter SKU FHDK 20N6901/S35A short circuit protection yes