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NBB20-U1K-N0 Inductive sensor

Key Benefits at a Glance

  • 20 mm flush
  • NAMUR output
  • Polarity reversal protected
  • Sensor head bidirectional and rotatable
Please contact us for exact delivery estimation.
Preferred Type
Product photo: Inductive sensor NBB20-U1K-N0
Dimensions: Inductive sensor NBB20-U1K-N0
Product photo: Inductive sensor NBB20-U1K-N0
Dimensions: Inductive sensor NBB20-U1K-N0
Approval
Product Compliance: USA - cULus
Product Compliance: United Kingdom – UKCA
Product Compliance: Europe – CE
Approval
Note

All product-related documents, such as certificates, declarations of conformity, etc., which were issued prior to the conversion under the name Pepperl+Fuchs GmbH or Pepperl+Fuchs AG, also apply to Pepperl+Fuchs SE.

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DatasheetClassificationProduct DocumentationDesign / SimulationApprovalsRelated Products

Technical data of NBB20-U1K-N0

Switching functionNormally closed (NC)
Output typeNAMUR
Rated operating distancesn20 mm
Installationflush
Assured operating distancesa0 ... 16.2 mm
Actual operating distancesr18 ... 22 mm
Reduction factor rAl 0.37
Reduction factor rCu 0.35
Reduction factor r304 0.79
Output type2-wire
Nominal voltageUo8.2 V (Ri approx. 1 kΩ)
Switching frequencyf0 ... 250 Hz
HysteresisH1 ... 15 % typ. 5 %
Reverse polarity protectionreverse polarity protected
Short-circuit protectionyes
Current consumption
Measuring plate not detected≥ 3 mA
Measuring plate detected≤ 1 mA
Switching state indicatorLED, yellow
MTTFd1697 a
Mission Time (TM)20 a
Diagnostic Coverage (DC)0 %
Standard conformity
NAMUREN 60947-5-6:2000
IEC 60947-5-6:1999
Electromagnetic compatibilityNE 21:2007
StandardsEN IEC 60947-5-2
IECEx approval
Equipment protection level GaIECEx PTB 11.0021X
Equipment protection level GbIECEx PTB 11.0021X
Equipment protection level DaIECEx PTB 11.0021X
Equipment protection level MbIECEx PTB 11.0021X
ATEX approval
Equipment protection level GaPTB 00 ATEX 2032 X
Equipment protection level GbPTB 00 ATEX 2032 X
Equipment protection level DaPTB 00 ATEX 2032 X
UL approvalcULus Listed, General Purpose
Ordinary LocationE87056
Hazardous LocationE501628
Control drawing116-0451
CCC approval
Hazardous Location2020322315002303
NEPSI approval
NEPSI certificateGYJ16.1394X
CML approvalon request
ANZEx19.3001X
Marine approvalDNVGL TAA00001A5
Ambient temperature-25 ... 100 °C (-13 ... 212 °F)
Storage temperature-40 ... 100 °C (-40 ... 212 °F)
Connection typescrew terminals
Information for connectionA maximum of two conductors with the same core cross section may be mounted on one terminal connection!
tightening torque 1.2 Nm + 10 %
Core cross sectionup to 2.5 mm2 , stripped insulation length: 7 mm
Minimum core cross-sectionwithout wire end ferrules 0.5 mm2 , with connector sleeves 0.34 mm2
Maximum core cross-sectionwithout wire end ferrules 2.5 mm2 , with connector sleeves 1.5 mm2
Connection (system side)screw terminals , M20 x 1.5 cable gland , usable thread length 9.1 mm , screw-in depth max. 9.1 mm
Housing materialPA
Sensing facePA
Degree of protectionIP66 / IP68 / IP69K
Mass225 g
Dimensions
Height40 mm
Width40 mm
Length118 mm
NoteTightening torque: 1.8 Nm (housing)
Use in the hazardous areasee instruction manuals
General Notes
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