Pepperl+Fuchs NCN3-F31K-N4-K

Inductive sensor
SKU: NCN3-F31K-N4-K
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The inductive sensor series from Pepperl+Fuchs offers reliable detection of metallic objects without direct contact. Featuring a rated operating distance of 3 mm, these sensors are ideal for various automation applications.

All description
Manufacturer: Pepperl+Fuchs
Description:

Pepperl+Fuchs inductive proximity sensors are designed to detect the presence of metallic objects through electromagnetic fields. These sensors utilize advanced inductive technology to ensure high precision and accurate detection in a wide range of industrial environments. They are particularly suited for applications in automation and machinery where non-contact sensing is essential to maintain efficiency and safety.

Constructed from durable PBT housing, these sensors are designed for flush mounting, making them versatile for various installation scenarios. The 2-wire output type simplifies wiring and integration into existing systems, while their DC voltage operation ensures compatibility with standard industrial power supplies. Additionally, these sensors are certified for use in hazardous environments under ATEX 3G, making them a reliable choice for applications in potentially explosive atmospheres.

General specifications
Switching element function DC Dual NC
Rated operating distance 3 mm
Installation flush mountable
Output polarity NAMUR
Assured operating distance 0 … 2.4 mm
Reduction factor rAl 0.35
Reduction factor rCu 0.3
Reduction factor r304 0.75
Reduction factor rSt37 1
Reduction factor rBrass 0.45
Nominal ratings
Nominal voltage 8 V
Switching frequency 0 … 3 kHz
Hysteresis typ. 5 %
Reverse polarity protection reverse polarity protected
Short-circuit protection yes
Suitable for 2:1 technology yes , Reverse polarity protection diode not required
Current consumption
Measuring plate not detected greater or equal 3 mA
Measuring plate detected less than or equal to 1 mA
Switching state indicator LED, yellow
Valve status indicator LED, yellow
Compliance with standards and directives
Standard conformity
NAMUR EN 60947-5-6:2000
IEC 60947-5-6:1999
Electromagnetic compatibility NE 21:2007
Approvals and certificates
UL approval cULus Listed, General Purpose
CSA approval cCSAus Listed, General Purpose
CCC approval CCC approval / marking not required for products rated less than or equal to 36 V
Ambient conditions
Ambient temperature -25 … 100 �C (-13 … 212 �F)
Storage temperature -40 … 100 �C (-40 … 212 �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, housing screws 1 Nm
Tightening torque, cable gland M20 x 1.5 – max. 7 Nm
M12 x 1.5 – max. 3 Nm
Note LED switch-off
ATEX 1G
Specific conditions
Lead insertion The connection cables should either be fixed when laid and mechanically protected or installed in such a way, that a force of 30 N applied in the direction of the cable inlet for one hour, does not lead to any visible displacement of the cable connections, even though the cable sheathing is displaced, see also IEC 60079-11. Depending on the type of installation, a suitable cable in accordance with Type A oder B of IEC 60079-14, must be used.
ATEX 2G
Specific conditions
Lead insertion The connection cables should either be fixed when laid and mechanically protected or installed in such a way, that a force of 30 N applied in the direction of the cable inlet for one hour, does not lead to any visible displacement of the cable connections, even though the cable sheathing is displaced, see also IEC 60079-11. Depending on the type of installation, a suitable cable in accordance with Type A oder B of IEC 60079-14, must be used.
General information
Use in the hazardous area see instruction manuals
Category 1G- 2G- 3G
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