NBB20+U1+E2

**Inductive sensor** 

**NBB20-U1-E2** 

## **Technical Data** 

## **Model Number** ns **NBB20-U1-E2** 

## **Features** 

- **Sensor head bidirectional and rotatable** 

- **20 mm flush** 

- **3-wire DC** 

- **• 4 LEDs indicator for 360° visibility** 

**Accessories** ns **V1-M20-80** Receptacles, M12/M20; plastic version 

**MHW 01** Modular mounting bracket 

**MH 04-2681F** Mounting aid for VariKont, +U1+ and +U9* 

|**General specifications**||||
|---|---|---|---|
|Switching element function||PNP|NO|
|Rated operating distance|sn|20 mm||
|Installation||flush||
|Output polarity||DC||
|Assured operating distance|sa|0 ... 16.2 mm||
|Reduction factor rAl||0.33||
|Reduction factor rCu||0.31||
|Reduction factor r304||0.74||
|Reduction factor rBrass||0.41||
|**Nominal ratings**||||
|Operating voltage|UB|10 ... 30 V DC||
|Switching frequency|f|0 ... 440 Hz||
|Hysteresis|H|typ. 5  %||
|Reverse polarity protection||reverse polarity protected||
|Short-circuit protection||pulsing||
|Voltage drop|Ud|≤2 V||
|Operating current<br>Off-state current<br>No-load supply current|IL<br>Ir<br>I0|0 ... 200 mA<br>0 ... 0.5 mA typ. 0.01 mA<br>≤20 mA||
|Time delay before availability|tv|80 ms||
|Operating voltage indicator||LED, green||
|Switching state indicator||LED, yellow||
|**Functional safety related parameters**||||
|MTTFd<br>Mission Time (TM)<br>Diagnostic Coverage (DC)<br>**Ambient conditions**||1460 a<br>20 a<br>0 %||
|Ambient temperature||-25 ... 85 °C (-13 ... 185 °F)||
|**Mechanical specifications**||||
|Connection type<br>Core cross-section||screw terminals<br>≤2.5 mm2||
|Housing material||PA/metal with epoxy powder coating|PA/metal with epoxy powder coating|
|Sensing face<br>Housing base<br>Degree of protection||PA<br>plastic<br>IP68 / IP69K||
|Mass<br>Note||225 g<br>Tightening torque: 1.8 Nm (housing)||
|||Tighteningtorque: 1.0 Nm(Screw terminal)||



## **Compliance with standards and directives** 

Standard conformity Standards EN 60947-5-2:2007 IEC 60947-5-2:2007 

**Approvals and certificates** EAC conformity TR CU 020/2011 UL approval cULus Listed, General Purpose CSA approval cCSAus Listed, General Purpose CCC approval CCC approval / marking not required for products rated ≤ 36 V 

## ~~PO~~ **Dimensions** 

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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 www.pepperl-fuchs.com fa-info@us.pepperl-fuchs.com fa-info@de.pepperl-fuchs.com fa-info@sg.pepperl-fuchs.com 

**1** 

**Inductive sensor** 

**NBB20-U1-E2** 

**Electrical Connection** 

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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 www.pepperl-fuchs.com fa-info@us.pepperl-fuchs.com fa-info@de.pepperl-fuchs.com fa-info@sg.pepperl-fuchs.com 

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