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Inductive sensor NBB20-U4-Z2

Inductive proximity sensor

Inductive sensor NBB20-U4-Z2

  • Sensor head bidirectional and rotatable
  • 20 mm flush
  • 2-wire DC
  • 2 LEDs indicator for 360° visibility
  • Product Detail

Datasheet excerpt: Technical data of  NBB20-U4-Z2

General specifications
Switching function Normally open/closed (NO/NC)
Output type Two-wire
Rated operating distance 20 mm
Installation flush
Output polarity DC
Assured operating distance 0 ... 16.2 mm
Actual operating distance 18 ... 22 mm typ. 20 mm
Reduction factor rAl 0.3
Reduction factor rCu 0.3
Reduction factor r304 0.7
Output type 2-wire
Nominal ratings
Operating voltage 5 ... 60 V DC
Switching frequency 0 ... 250 Hz
Hysteresis typ. 5 %
Reverse polarity protection reverse polarity tolerant
Short-circuit protection pulsing
Voltage drop ≤ 5 V
Voltage drop at IL
Voltage drop IL = 100 mA, switching element on ... 5 V
Operating current 2 ... 200 mA
Off-state current 0 ... 0.5 mA
Switching state indicator 2 LED, yellow
Functional safety related parameters
MTTFd 1162 a
Mission Time (TM) 20 a
Diagnostic Coverage (DC) 0 %
Compliance with standards and directives
Standard conformity
Standards EN IEC 60947-5-2
Approvals and certificates
UL approval cULus Listed, General Purpose
CCC approval Certified by China Compulsory Certification (CCC)
Ambient conditions
Ambient temperature -25 ... 85 °C (-13 ... 185 °F)
Mechanical specifications
Connection type screw terminals
Information for connection A 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 section up to 2.5 mm2
Minimum core cross-section without wire end ferrules 0.5 mm2 , with connector sleeves 0.34 mm2
Maximum core cross-section without wire end ferrules 2.5 mm2 , with connector sleeves 1.5 mm2
Housing material PA/metal with epoxy powder coating
Sensing face PA
Housing base metal
Degree of protection IP68 / IP69K
Mass 225 g
Dimensions
Height 40 mm
Width 40 mm
Length 118 mm
Note Tightening torque: 1.8 Nm (housing)

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