Inductive sensor NBB20-U4-A2 Technical Data Model Number NBB20-U4-A2 Features * * * * Sensor head bidirectional and rotatable 20 mm flush 4-wire DC 4 LEDs indicator for 360 visibility Accessories MHW 01 Modular mounting bracket MH 04-2681F Mounting aid for VariKont, +U1+ and +U9* General specifications Switching element function Rated operating distance sn Installation Output polarity Assured operating distance sa Reduction factor rAl Reduction factor rCu Reduction factor r304 Reduction factor rBrass Nominal ratings Operating voltage UB Switching frequency f Hysteresis H Reverse polarity protection Short-circuit protection Voltage drop Ud Operating current IL Off-state current Ir No-load supply current I0 Time delay before availability tv Operating voltage indicator Switching state indicator Functional safety related parameters MTTFd Mission Time (TM) Diagnostic Coverage (DC) Ambient conditions Ambient temperature Mechanical specifications Connection type Core cross-section Housing material Sensing face Housing base Degree of protection Mass Note Compliance with standards and directives Standard conformity Standards PNP NO/NC 20 mm flush DC 0 ... 16.2 mm 0.33 0.31 0.74 0.41 10 ... 30 V DC 0 ... 150 Hz typ. 5 % reverse polarity protected pulsing 2V 0 ... 200 mA 0 ... 0.5 mA 20 mA 80 ms LED, green LED, yellow 1230 a 20 a 0% -25 ... 85 C (-13 ... 185 F) screw terminals 2.5 mm2 PA/metal with epoxy powder coating PA metal IP68 / IP69K 225 g Tightening torque: 1.8 Nm (housing) Tightening torque: 1.0 Nm (Screw terminal) EN 60947-5-2:2007 IEC 60947-5-2:2007 Approvals and certificates UL approval CSA approval CCC approval cULus Listed, General Purpose cCSAus Listed, General Purpose CCC approval / marking not required for products rated 36 V Dimensions Refer to "General Notes Relating to Pepperl+Fuchs Product Information". Pepperl+Fuchs Group USA: +1 330 486 0001 Germany: +49 621 776 4411 fa-info@de.pepperl-fuchs.com www.pepperl-fuchs.com fa-info@us.pepperl-fuchs.com LED gn 118 46 60 40 5.3 LED gn 30 Release date: 2015-02-24 10:52 Date of issue: 2015-02-24 203054_eng.xml 1/2 NPT" 40 LED ye LED ye Singapore: +65 6779 9091 fa-info@sg.pepperl-fuchs.com 1 Inductive sensor NBB20-U4-A2 Electrical Connection 1 L+ 4 2 L- Release date: 2015-02-24 10:52 Date of issue: 2015-02-24 203054_eng.xml 3 2 Refer to "General Notes Relating to Pepperl+Fuchs Product Information". Pepperl+Fuchs Group USA: +1 330 486 0001 Germany: +49 621 776 4411 fa-info@de.pepperl-fuchs.com www.pepperl-fuchs.com fa-info@us.pepperl-fuchs.com Singapore: +65 6779 9091 fa-info@sg.pepperl-fuchs.com