Serviceline Industrial Sensors
Serviceline Explosion Protection

Inductive sensor NRB20-U1-A2

NRB20-U1-A2
  • Sensor head bidirectional and rotatable
  • 20 mm flush
  • Reduction factor = 1
  • Magnetic field resistant
  • 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  NRB20-U1-A2

Product Description
Inductive sensor
General specifications
Switching functioncomplementary
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 1
Reduction factor rCu 1
Reduction factor r304 1
Reduction factor rSt37 1
Output type4-wire
Nominal ratings
Operating voltage10 ... 30 V DC
Switching frequency0 ... 440 Hz
Hysteresis3 ... 15 %
Reverse polarity protectionreverse polarity protected
Short-circuit protectionpulsing
Voltage drop≤ 2.5 V
Operating current0 ... 200 mA
Off-state current0 ... 0.5 mA typ. 0.01 mA
No-load supply current≤ 25 mA
Time delay before availability15 ms
Constant magnetic field200 mT
Alternating magnetic field200 mT
Operating voltage indicatorLED, green
Switching state indicatorLED, yellow
Functional safety related parameters
MTTFd1123 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
Protection classII
Rated insulation voltage60 V
Rated impulse withstand voltage800 V
UL approvalcULus Listed, General Purpose
CCC approvalCCC approval / marking not required for products rated ≤36 V
Ambient conditions
Ambient temperature-25 ... 70 °C (-13 ... 158 °F)
Storage temperature-40 ... 85 °C (-40 ... 185 °F)
Mechanical specifications
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
Minimum core cross-sectionwithout wire end ferrule 0.5 mm2 , with connector sleeves 0.34 mm2
Maximum core cross-sectionwithout wire end ferrule 2.5 mm2 , with connector sleeves 1.5 mm2
Housing materialPA/metal with epoxy powder coating
Sensing facePA 6 Grivory GVN-35H
Housing baseplastic
Degree of protectionIP67
Mass225 g
NoteTightening torque: 1.8 Nm (housing)

CAD+CAE: NRB20-U1-A2

CADFile TypeFile Size
3-D model in IGS format / 3-D-Modell im IGS-FormatIGS2629 KB
3-D model in STP format / 3-D-Modell im STP-FormatSTP2003 KB

Approvals+Certificates: NRB20-U1-A2

Statements of complianceCertificate No.File TypeFile Size
EU-Declaration of conformity / EU-KonformitätserklärungDOC-4165PDF211 KB
Certificates
Canada USA UL Ordinary Location20171221-E87056PDF410 KB

Associated Products: NRB20-U1-A2

Accessories

Mounting aid for VariKont, +U1+ and +U9* fa
Modular mounting bracket fa