NBB20-U1-UU – Inductive Sensor – PEPPERL+FUCHS Proximity Sensors

$ 34.54

SKU: NBB20-U1-UU

PEPPERL+FUCHS Inductive proximity sensors are the preferred choice for the majority of applications requiring accurate, non-contact detection of metallic objects in machinery or automation equipment. As a pioneer and market leader, Pepperl+Fuchs offers innovative, high quality inductive sensors to meet the needs of the worldwide automation and process control markets. Our experience, flexibility and customer focus continues to allow us to offer custom designed solutions for the most unique and demanding applications.

General specifications
Switching function Normally open/closed (NO/NC)
Output type Two-wire
Rated operating distance 20 mm
Installation flush
Output polarity AC/DC
Assured operating distance 0 … 16.2 mm
Actual operating distance 18 … 22 mm
Reduction factor rAl 0.4
Reduction factor rCu 0.3
Reduction factor r304 0.77
Reduction factor rFe 1
Reduction factor rBrass 0.43
Output type 2-wire
Nominal ratings
Switching frequency AC, 0 … 30 Hz
DC, 0 … 100 Hz
Hysteresis 1 … 10 typ. 5 %
Reverse polarity protection reverse polarity tolerant
Short-circuit protection pulsing
Voltage drop ≤ 5 V (typ. 2V) DC operation
≤ 8 V (typ. 3 V) AC operation
Momentary current
(20 ms, 0.1 Hz)		 0 … 3000 mA
Operating current 5 … 500 mA
Rated operating current 500 mA 50/60 Hz
Lowest operating current 5 mA
Off-state current ≤ 1.5 mA
Usage category AC12 , AC140 , DC12 , DC13
Time delay before availability ≤ 300 ms
Operating voltage indicator LED, green
Switching state indicator LED, yellow
Error indicator flashes when overcurrent
Functional safety related parameters
MTTFd 540 a
Mission Time (TM) 20 a
Diagnostic Coverage (DC) 0 %
Electrical specifications
Rated operating voltage 24 … 250 V DC / 24 … 230 V AC
Operating voltage 20 … 275 V DC / 20 … 253 V AC
Compliance with standards and directives
Standard conformity
Standards EN 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 class II
Rated insulation voltage 250 V
Rated impulse withstand voltage 2.5 kV
UL approval cULus Listed, General Purpose
“For use in NFPA 79 Applications only”
For overcurrent protection, install a fuse with a rated current of max. 3 A and at least 300 V AC/DC
CCC approval Ue 75VDC – 250VDC Ue 75VAC – 230VAC
Ambient conditions
Ambient temperature -25 … 85 °C (-13 … 185 °F)
Storage temperature -25 … 85 °C (-13 … 185 °F)
Pollution degree 3
Mechanical specifications
Connection type terminal compartment
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 6.6 / metal
Sensing face PA 6.6
Housing base plastic
Degree of protection IP67
Mass 255 g
Note Tightening torque: 1.8 Nm (housing)

 

Associated Products: NBB20-U1-UU

Accessories

Modular mounting bracket
Weight 0.255 kg

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