Datasheet

1
Inductive sensor NBB20-U1-UU
Release date: 2016-08-16 11:28 Date of issue: 2016-08-16 238884_eng.xml
Germany: [phone]Pepperl+Fuchs Group
Refer to “General Notes Relating to Pepperl+Fuchs Product Information”.
USA: [phone] Singapore: [phone]
www.pepperl-fuchs.com [e-mail] [e-mail]
[e-mail]
S
Model Number
NBB20-U1-UU
Features
• Sensor head bidirectional and rotat-
able
•Comfort series
• 20 mm flush
Accessories
MHW 01
Modular mounting bracket
Technical Data
General specifications
Switching element function AC/DC NO/NC
Rated operating distance s
n
20 mm
Installation flush
Output polarity AC/DC
Assured operating distance s
a
0 ... 16.2 mm
Actual operating distance s
r
18 ... 22 mm
Reduction factor r
Al
0.4
Reduction factor r
Cu
0.3
Reduction factor r
304
0.77
Reduction factor r
Fe
1
Reduction factor r
Brass
0.43
Nominal ratings
Switching frequency f AC, 0 ... 30 Hz
DC, 0 ... 100 Hz
Hysteresis H 1 ... 10 typ. 5 %
Reverse polarity protection reverse polarity tolerant
Short-circuit protection pulsing
Volta ge drop U
d
≤ 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 I
L
5 ... 500 mA
Off-state current I
r
≤ 1.5 mA
Time delay before availability t
v
≤ 300 ms
Operating voltage indicator LED, green
Switching state indicator LED, yellow
Error indicator flashes when overcurrent
Electrical specifications
Rated operating voltage U
e
24 ... 250 V DC / 24 ... 230 V AC
Operating voltage U
B
20 ... 300 V DC / 20 ... 253 V AC
Ambient conditions
Ambient temperature -25 ... 85 °C (-13 ... 185 °F)
Storage temperature -25 ... 85 °C (-13 ... 185 °F)
Mechanical specifications
Connection type terminal compartment
Core cross-section up to 2.5 mm
2
Housing material PA 6.6 / metal
Sensing face PA 6. 6
Housing base plastic
Degree of protection IP67
Compliance with standards and directives
Standard conformity
Standards
EN 60947-5-2:2007
IEC 60947-5-2:2007
Approvals and certificates
Protection class II
Rated insulation voltage U
i
230 V
Rated impulse withstand voltage U
imp
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