General specifications Switching element function NAMUR, NC Rated operating distance 0.2 mm Installation flush Output polarity NAMUR Assured operating distance 0 ... 0.2 mm Reduction factor r Al 0.4 Reduction factor r Cu 0.3 Reduction factor r 304 0.85 Nominal ratings Nominal voltage 8 V Operating voltage 5 ... 25 V Switching frequency 0 ... 100 Hz Hysteresis typ. % Current consumption Measuring plate not detected min. 3 mA Measuring plate detected less than or equal to 1 mA Functional safety related parameters MTTF d 11770 a Mission Time (T M ) 20 a Diagnostic Coverage (DC) 0 % Compliance with standards and directives Standard conformity NAMUR EN 60947-5-6:2000 IEC 60947-5-6:1999 Approvals and certificates UL approval cULus Listed, General Purpose CSA approval cCSAus Listed, General Purpose CCC approval CCC approval / marking not required for products rated less than or equal to 36 V Ambient conditions Ambient temperature -25 ... 70 °C (-13 ... 158 °F) Mechanical specifications Axial load, max. 0 ... 1200 N Connection type cable PVC , 2 m Core cross-section 0.34 mm 2 Housing material Special steel Housing diameter 10 mm Degree of protection IP67