Inductive sensor NBN3-F31K-Z8-K
Technical Data
General specifications
Switching function 2 x normally open (NO)
Output type Two-wire
Rated operating distance sn3 mm
Installation flush mountable
Output polarity DC
S
Model Number
NBN3-F31K-Z8-K
Features
• Direct mounting on standard actuators
• Compact and stable housing
• Fixed setting
• LEDs for switching state of sensor and
solenoid valve
Application
Note
The connections to this sensor are sealed
with stopping plugs to protect against dirt and
moisture. If not all of the connections are
used in your application, then seal the remaining stopping plugs on the sensor permanently or check during initial installation and
when performing regular maintenance work
that the stopping plugs are secure and impermeable. If necessary, tighten the stopping
plugs to a torque of 1 Nm.
Assured operating distance s
Actual operating distance sr2.7 ... 3.3 mm typ. 3 mm
Reduction factor r
Reduction factor rCu 0.4
Reduction factor r
Reduction factor r
Output type 4-wire
Nominal ratings
Operating voltage UB6 ... 60 V DC
Switching frequency f 0 ... 500 Hz
Hysteresis H typ. 5 %
Reverse polarity protection reverse polarity tolerant
Short-circuit protection pulsing
Voltage drop Ud≤ 5.5 V
Operating current I
Lowest operating current I
Off-state current I
Time delay before availability t
Switching state indicator LED, yellow
Valve status indicator LED, yellow
Limit data
Tightening torque, fastening screws 0.4 Nm
Functional safety related parameters
MTTFd 570 a
Mission Time (T
Diagnostic Coverage (DC) 0 %
Valve circuit
Voltage max. 32 V DC
Current max. 240 mA
Short-circuit protection no
Reverse polarity protection yes, with reversed output LED is out of function, therfore more
Ambient conditions
Ambient temperature -25 ... 70 °C (-13 ... 158 °F)
Mechanical specifications
Connection (system side) Cage tension spring terminals
Core cross-section (system side) 1.5/2.5 mm2 flexible/rigid
Connection (valve side) Cage tension spring terminals
Core cross-section (valve side) 1.5/2.5 mm2 flexible/rigid
Housing material PBT
Sensing face PBT
Degree of protection IP67
Mass 180 g
Tightening torque, housing screws 1 Nm
Tightening torque, cable gland M20 x 1.5 ; ≤ 7 Nm
Compliance with standards and
directives
Standard conformity
Standards
Approvals and certificates
UL approval cULus Listed, General Purpose, Class 2 Power Source
CCC approval Certified by China Compulsory Certification (CCC)
0.5
Al
1
304
1.1
St37
) 20 a
M
0 ... 2.43 mm
a
4 ... 100 mA
L
4 mA
m
0.5 ... 0.9 mA typ. 0.65 mA
r
≤ 40 ms
v
power for solenoid valve
M12 x 1.5 ; ≤ 3 Nm
EN 60947-5-2:2007
EN 60947-5-2/A1:2012
IEC 60947-5-2:2007
IEC 60947-5-2 AMD 1:2012
Release date: 2018-08-09 09:52 Date of issue: 2018-08-09 282689_eng.xml
Refer to “General Notes Relating to Pepperl+Fuchs Product Information”.
1
Inductive sensor NBN3-F31K-Z8-K
Dimensions
65
I
40
35
95
9
II
14 11
5.4
M20 x 1.5
S
M12 x 1.5
77.5
LED
7
Electrical Connection
Z8-K
30
4
5
1
2
9 (10)
10 (9)
7 (6)
6 (7)
V+(V-)
V-(V+)
V-(V+)
V+(V-)
V
LED
Release date: 2018-08-09 09:52 Date of issue: 2018-08-09 282689_eng.xml
Refer to “General Notes Relating to Pepperl+Fuchs Product Information”.
2
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