Pepperl+Fuchs NCB20+U4+U Inductive sensor

Pepperl+Fuchs NCB20+U4+U
Item Number: NCB20+U4+U
Housing material: PBT/metal, Rated operating distance: 20 mm, Connection type: screw terminals , Output type: 2-wire, Installation: embeddable
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General specifications
Switching element functionAC/DC NO/NC
Rated operating distance20 mm
Output polarityAC/DC
Assured operating distance0 ... 16.2 mm
Reduction factor rAl 0.3
Reduction factor r304 0.75
Nominal ratings
Operating voltage DC20 ... 300 V
Operating voltage AC20 ... 250 V
Switching frequency200 Hz VDC / 30 Hz VAC
Hysteresis3 ... 10 %
Reverse polarity protectionreverse polarity protected
Short-circuit protectionpulsing
Voltage dropless than or equal to 8 V
Momentary current
(20 ms, 0.1 Hz)
0 ... 3000 mA
Operating current3 ... 400 mA
Off-state current< 1.7 mA
Indicators/operating means
LED greenPower on
LED yellowoutput
LED green/yellowShort circuit/overload indication
Approvals and certificates
UL approvalcULus Listed, General Purpose
CSA approvalcCSAus Listed, General Purpose
Ambient conditions
Ambient temperature-25 ... 70 °C (-13 ... 158 °F)
Storage temperature-25 ... 85 °C (-13 ... 185 °F)
Mechanical specifications
Connection typescrew terminals
Housing materialPBT/metal
Sensing facePBT
Degree of protectionIP68
Note1) In the temperature range below 0 °C, permissible operating voltage Ub 80...253 V
Safety fuse less than or equal to 2 A (quick-blow) according to IEC 60127-2 Sheet 1
Recommendation: after a short circuit, check that the device is functioning correctly.


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