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NBN3-F31K-E8-K – Inductive Sensor – PEPPERL+FUCHS Proximity Sensors

$ 139.38

SKU NBN3-F31K-E8-K Category

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 Specification

Switching function 2 x normally open (NO)
Output type PNP
Rated operating distance sn 3 mm
Installation flush mountable
Output polarity DC
Assured operating distance sa 0 … 2.43 mm
Actual operating distance sr 2.7 … 3.3 mm typ.
Reduction factor rAl 0.5
Reduction factor rCu 0.4
Reduction factor r304 1
Reduction factor rSt37 1.2
Output type 4-wire

Nominal ratings

Operating voltage UB 10 … 30 V DC
Switching frequency f 0 … 500 Hz
Hysteresis H typ. 5 %
Reverse polarity protection all connections
Short-circuit protection pulsing
Voltage drop Ud ≤ 3 V
Operating current IL 0 … 100 mA
Off-state current Ir 0 … 0.5 mA typ. 0.1 µA
No-load supply current I0 ≤ 25 mA
Operating voltage indicator LED, green
Switching state indicator LED, yellow
Valve status indicator LED, yellow

Functional safety related parameters

MTTFd 780 a
Mission Time (TM) 20 a
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 power for solenoid valve

Compliance with standards and directives

Standard conformity
Standards EN IEC 60947-5-2

Approvals and certificates

UL approval cULus Listed, General Purpose
CCC approval CCC approval / marking not required for products rated ≤36 V

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
Tightening torque, fastening screws ≤ 5 Nm
Tightening torque, housing screws 1 Nm
Tightening torque, cable gland M20 x 1.5 ; max. 7 Nm
M12 x 1.5 ; max. 1.5 Nm
Dimensions
Height 35.5 mm
Width 65 mm
Length 77.5 mm

Additional information

Dimensions 7.75 × 6.5 × 3.55 cm

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