proximity sensor SIES-Q8B-NS-K-L Inductive, with cable, can be flush-mounted, normally-open function, negative-switching. Conforms to standard=EN 60947-5-2, Authorisation=(* RCM Mark, * c UL us - Listed (OL)), CE mark (see declaration of conformity)=to EU directive for EMC, Materials note=(* Free of copper and PTFE, * Conforms to RoHS), Nominal switching distance=1,5 mm Conforms to standard EN 60947-5-2 Authorisation RCM Markc UL us - Listed (OL) CE mark (see declaration of conformity) to EU directive for EMC Materials note Free of copper and PTFEConforms to RoHS Nominal switching distance 1.5 mm Guaranteed switching distance 1.2 mm Reduction factors Aluminium = 0.45Stainless steel, St 18/8 = 0.8Copper = 0.4Brass = 0.55Steel, St 37 = 1.0 Ambient temperature '-25 ... 70 °C Repetition accuracy 0.07 mm Switch output NPN Switching element function Normally open contact Max. switching frequency 3,500 Hz Max. switching frequency, DC 1,500 Hz