Inductive sensor NBB20-U1-E2 Technical Data General specifications Switching element function PNP NO Rated operating distance s 20 mm n Installation flush Output polarity DC Assured operating distance s 0 ... 16.2 mm a Reduction factor r 0.33 Al Reduction factor r 0.31 Cu Reduction factor r 0.74 304 Reduction factor r 0.41 Brass Nominal ratings Operating voltage U 10 ... 30 V DC B Switching frequency f 0 ... 440 Hz Hysteresis H typ. 5 % Reverse polarity protection reverse polarity protected Short-circuit protection pulsing Voltage drop U 2 V d Operating current I 0 ... 200 mA L Off-state current I 0 ... 0.5 mA typ. 0.01 mA r No-load supply current I 20 mA 0 Time delay before availability t 80 ms v Operating voltage indicator LED, green Switching state indicator LED, yellow Functional safety related parameters MTTF 1460 a d Model Number Mission Time (T ) 20 a M Diagnostic Coverage (DC) 0 % NBB20-U1-E2 Ambient conditions Ambient temperature -25 ... 85 C (-13 ... 185 F) Mechanical specifications Features Connection type screw terminals 2 Sensor head bidirectional and rotat- Core cross-section 2.5 mm able Housing material PA/metal with epoxy powder coating Sensing face PA 20 mm flush Housing base plastic 3-wire DC Degree of protection IP68 / IP69K Mass 225 g 4 LEDs indicator for 360 visibility Note Tightening torque: 1.8 Nm (housing) Tightening torque: 1.0 Nm (Screw terminal) Accessories Compliance with standards and directives V1-M20-80 Standard conformity Receptacles, M12/M20 plastic version EN 60947-5-2:2007 Standards MHW 01 IEC 60947-5-2:2007 Modular mounting bracket Approvals and certificates MH 04-2681F EAC conformity TR CU 020/2011 Mounting aid for VariKont, +U1+ and +U9* UL approval cULus Listed, General Purpose CSA approval cCSAus Listed, General Purpose CCC approval CCC approval / marking not required for products rated 36 V Dimensions LED ye LED gn M20 x 1.5 118 46 60 LED gn LED ye Refer to General Notes Relating to Pepperl+Fuchs Product Information. Pepperl+Fuchs Group USA: +1 330 486 0001 Germany: +49 621 776 4411 Singapore: +65 6779 9091 1 www.pepperl-fuchs.com fa-info us.pepperl-fuchs.com fa-info de.pepperl-fuchs.com fa-info sg.pepperl-fuchs.com Release date: 2016-06-16 14:10 Date of issue: 2016-06-16 194771 eng.xml 40 5.3 30 40Inductive sensor NBB20-U1-E2 Electrical Connection 1 L+ 4 3 L- Refer to General Notes Relating to Pepperl+Fuchs Product Information. Pepperl+Fuchs Group USA: +1 330 486 0001 Germany: +49 621 776 4411 Singapore: +65 6779 9091 2 www.pepperl-fuchs.com fa-info us.pepperl-fuchs.com fa-info de.pepperl-fuchs.com fa-info sg.pepperl-fuchs.com Release date: 2016-06-16 14:10 Date of issue: 2016-06-16 194771 eng.xml