70133033 – Pepperl+Fuchs

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NCN3-F31K-N4 Inductive Sensor ATEX & IECEX “P+F”

Direct mounting on standard actuators
Fixed setting
NAMUR sensors must be operated with approved switch amplifiers
Switching function 2 x normally closed (NC)
Output type NAMUR
Rated operating distance 3 mm
Installation flush mountable
Assured operating distance 0 … 2.4 mm
Actual operating distance 2.7 … 3.3 mm typ.
Actuating element Stainless steel 1.4305 / AISI 303
8.5 mm x 8.5 mm x 0.5 mm
Reduction factor rAl 0.5
Reduction factor rCu 0.4
Reduction factor r304 1
Reduction factor rSt37 1.3
Reduction factor rBrass 0.6
Output type 2-wire
Nominal ratings
Nominal voltage 8.2 V (Ri approx. 1 kO)
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 = 3 mA
Measuring plate detected = 1 mA
Time delay before availability = 1.1 ms
Switching state indicator LED, yellow
Functional safety related parameters
Safety Integrity Level (SIL) SIL 2
MTTFd 1470 a
Mission Time (TM) 20 a
Diagnostic Coverage (DC) 0 %
Compliance with standards and directives
Standard conformity
NAMUR EN 60947-5-6:2000
IEC 60947-5-6:1999
Electromagnetic compatibility NE 21:2007
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
IECEx approval
Equipment protection level Ga IECEx TUN 17.0021X
Equipment protection level Gb IECEx TUN 17.0021X
Equipment protection level Da IECEx TUN 17.0021X
Equipment protection level Mb IECEx TUN 17.0021X
ATEX approval
Equipment protection level Ga TÜV 99 ATEX 1479 X
Equipment protection level Gb TÜV 99 ATEX 1479 X
Equipment protection level Da TÜV 99 ATEX 1479 X
UL approval cULus Listed, General Purpose
Ordinary Location E87056
Hazardous Location E501628
Control drawing 116-0456
CCC approval
Hazardous Location 2020322315002262
NEPSI approval
NEPSI certificate GYJ19.1410X
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
Stripped length 7 mm
M20 x 1.5 cable gland
usable thread length 11.5 mm
screw-in depth max. 11.5 mm
Core cross section (system side) Flexible: 0.2 … 1.5 mm2
rigid: 0.2 … 2.5 mm2
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
General information
Use in the hazardous area see instruction manuals
Classifications
System Classcode
ECLASS 11.0 27272401
ECLASS 10.0.1 27272401
ECLASS 9.0 27272401
ECLASS 8.0 27272401
ECLASS 5.1 27272401
ETIM 8.0 EC002714
ETIM 7.0 EC002714
ETIM 6.0 EC002714
ETIM 5.0 EC002714
UNSPSC 12.1 39121550