Serviceline
Serviceline Industrial Sensors
Serviceline Explosion Protection

Inductive sensor NBB20-U4-E2

NBB20-U4-E2
  • Sensor head bidirectional and rotatable
  • 20 mm flush
  • 3-wire DC
  • 4 LEDs indicator for 360° visibility

Please 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, also apply to Pepperl+Fuchs AG.

Download the complete datasheet as a PDF:


Datasheet excerpt: Technical data of  NBB20-U4-E2

General specifications
Switching functionNormally open (NO)
Output typePNP
Rated operating distance20 mm
Installationflush
Output polarityDC
Assured operating distance0 ... 16.2 mm
Actual operating distance18 ... 22 mm typ. 20 mm
Reduction factor rAl 0.33
Reduction factor rCu 0.31
Reduction factor r304 0.74
Reduction factor rBrass 0.41
Output type3-wire
Nominal ratings
Operating voltage10 ... 30 V DC
Switching frequency0 ... 440 Hz
Hysteresistyp. 5 %
Reverse polarity protectionreverse polarity protected
Short-circuit protectionpulsing
Voltage drop≤ 2 V
Voltage drop at IL
Voltage drop IL = 1 mA, switching element on0.5 ... 2.3 V typ. 0.9 V
Voltage drop IL = 10 mA, switching element on0.8 ... 2.2 V typ. 1.4 V
Voltage drop IL = 20 mA, switching element on0.9 ... 2.3 V typ. 1.5 V
Voltage drop IL = 50 mA, switching element on0.9 ... 2.5 V typ. 1.6 V
Voltage drop IL = 100 mA, switching element on1 ... 2.6 V typ. 1.8 V
Voltage drop IL = 200 mA, switching element on1.2 ... 2.8 V typ. 2 V
Operating current0 ... 200 mA
Off-state current0 ... 0.5 mA typ. 0.01 mA
Off-state current TU =40 °C, switching element off≤ 100 µA
No-load supply current≤ 10 mA
Time delay before availability≤ 50 ms
Operating voltage indicatorLED, green
Switching state indicatorLED, yellow
Functional safety related parameters
MTTFd1460 a
Mission Time (TM)20 a
Diagnostic Coverage (DC)0 %
Compliance with standards and directives
Standard conformity
StandardsEN 60947-5-2:2007
EN 60947-5-2/A1:2012
IEC 60947-5-2:2007
IEC 60947-5-2 AMD 1:2012
Approvals and certificates
UL approvalcULus Listed, General Purpose
CCC approvalCCC approval / marking not required for products rated ≤36 V
Ambient conditions
Ambient temperature-25 ... 85 °C (-13 ... 185 °F)
Mechanical specifications
Connection typescrew terminals
Core cross-sectionmax. 2.5 mm2
Housing materialPA/metal with epoxy powder coating
Sensing facePA
Housing basemetal
Degree of protectionIP68 / IP69K
Mass225 g
NoteTightening torque: 1.8 Nm (housing)

Documents: NBB20-U4-E2

Technical informationLanguageFile TypeFile Size
technical information (TI)ENGPDF134 KB
technische Information (TI)GERPDF110 KB
warunki montażuPOLPDF221 KB
Product information
Product information - A level higher - The new VariKontENGPDF1214 KB

Approvals+Certificates: NBB20-U4-E2

Statements of complianceCertificate No.File TypeFile Size
EU-Declaration of conformity / EU-KonformitätserklärungDOC-3741PDF186 KB
Certificates
Canada USA CSA Ordinary Location1007121PDF99 KB
Canada USA UL Ordinary Location20171221-E87056PDF410 KB

Associated Products: NBB20-U4-E2

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Modular mounting bracket fa