Feature Value Shipping date  View Design  Round 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 to EU directive low-voltage devices Materials note  Free of copper and PTFE Measuring principle  Inductive Nominal switching distance  4 mm Guaranteed switching distance  3.24 mm Reduction factors  Aluminium = 0.6 Stainless steel, St 18/8 = 0.9 Copper = 0.5 Brass = 0.6 Steel, St 37 = 1.0 Ambient temperature  -25 ... 85 °C Repetition accuracy  0.2 mm Switch output  Non-contacting 2-wire Switching element function  Normally open contact Hysteresis  0.03 ... 0.88 mm Max. switching frequency, DC  900 Hz Max. switching frequency, AC  25 Hz Max. output current  200 mA Voltage drop  <= 8 V Minimum load current  5 mA Short circuit strength  No Operating voltage range AC  20 ... 265 V Operating voltage range DC  20 ... 320 V Line frequency  50 Hz Idle current  <= 1.5 mA Polarity protected  for all electrical connections Electrical connection  Plug M12x1 2-pin Size  M12 Mounting type  with lock nut Tightening torque  10 Nm Type of installation  not flush Product weight  20 g Material housing  Brass PA Nickel plated Operating status display  Yellow LED Protection class  IP67 Corrosion resistance classification CRC  1 - Low corrosion stress