Inductive sensor NBB20-U1-E0
Sensor head bidirectional and rotatable
20 mm flush
3-wire DC
4 LEDs indicator for 360° visibility
General specifications
Switching function Normally open (NO)
Output type NPN
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 0.33
Reduction factor rCu 0.31
Reduction factor r304 0.74
Reduction factor rBrass 0.41
Output type 3-wire
Nominal ratings
Operating voltage 10 ... 30 V DC
Switching frequency 0 ... 440 Hz
Hysteresis typ. 5 %
Reverse polarity protection reverse polarity protected
Short-circuit protection pulsing
Voltage drop ≤ 2 V
Operating current 0 ... 200 mA
Off-state current 0 ... 0.5 mA typ. 0.1 µA at 25 °C
No-load supply current ≤ 20 mA
Time delay before availability 80 ms
Operating voltage indicator LED, green
Switching state indicator LED, yellow
Functional safety related parameters
MTTFd 1510 a
Mission Time (TM) 20 a
Diagnostic Coverage (DC) 0 %
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 ferrule 0.5 mm2 , with connector sleeves 0.34 mm2
Maximum core cross-section without wire end ferrule 2.5 mm2 , with connector sleeves 1.5 mm2
Housing material PA/metal with epoxy powder coating
Sensing face PA
Housing base plastic
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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