Pepperl Fuchs

Pepperl Fuchs NCN3-F31K-N4-B13

Inductive sensor

MPN: NCN3-F31K-N4-B13
Category: Inductive Sensors

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12-month warranty (new) · 3-month (used/refurbished)
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What is the Pepperl Fuchs NCN3-F31K-N4-B13?

Direct mounting on standard actuators

Fixed setting

Cage clamp terminals

Usable up to SIL 2 acc. to IEC 61508

LEDs for switching state of sensor and solenoid valve

Valve LEDs disconnectable

ATEX & IECEX certifications

Extended temperature range, Valve position detection, Solenoid valve output, Suitable for 2:1 technology, Switching function: 2 x normally closed (NC), Output type: NAMUR, Installation: flush mountable, Output type: 2-wire, Construction type: Dual sensor, Series: Dual sensor, Suitable for 2:1 technology, Safety Integrity Level (SIL): SIL 2, Type of voltage: DC, Equipment protection level Ga: IECEx TUN 17.0021X, Equipment protection level Gb: IECEx TUN 17.0021X

Specifications

General specifications

Order code (Pepperl+Fuchs part number)	70110340
Switching function	2 x normally closed (NC)
Output type	NAMUR
Rated operating distance	3 mm sn
Installation	flush mountable
Assured operating distance	0 ... 2.4 mm sa
Actual operating distance	2.7 ... 3.3 mm typ. sr
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
Lifecycle	Active (current Pepperl+Fuchs product)

Nominal ratings

Nominal voltage	8.2 V (Ri approx. 1 kΩ) Uo
Switching frequency	0 ... 3 kHz f
Hysteresis	typ. 5 % H
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
Current consumption: Measuring plate detected	≤ 1 mA
Time delay before availability	≤ 1.1 ms tv
Switching state indicator	LED, yellow
Valve status 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 %

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: NAMUR	EN 60947-5-6:2000 IEC 60947-5-6:1999
Standard conformity: Electromagnetic compatibility	NE 21:2007
Standard conformity: Standards	EN IEC 60947-5-2

Approvals and certificates

IECEx approval: Equipment protection level Ga	IECEx TUN 17.0021X
IECEx approval: Equipment protection level Gb	IECEx TUN 17.0021X
IECEx approval: Equipment protection level Mb	IECEx TUN 17.0021X
ATEX approval: Equipment protection level Ga	TÜV 99 ATEX 1479 X
ATEX approval: Equipment protection level Gb	TÜV 99 ATEX 1479 X
ATEX approval: Equipment protection level Gc (ic)	PF 13 CERT 2895 X
UL approval	cULus Listed Load Type: General Purpose Circuitry: Class 2 Power Source Enclosure Type Rating: Type 1 Supply/Switching Voltage: 8.2 V DC
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)	rigid: 0.14 ... 2.5 mm2 flexible: 0.14 ... 1.5 mm2 flexible with core-end sleeve: 0.25 ... 1.5 mm2
Connection (valve side)	like connection (system side)
Core cross section (valve side)	like core cross section (system side)
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
Dimensions: Height	35.5 mm
Dimensions: Width	65 mm
Dimensions: Length	77.5 mm
Note	LED switch-off

General information

Use in the hazardous area

see instruction manuals

Downloads & documentation

Official documents from Pepperl Fuchs, downloaded directly from the manufacturer.

Data sheets & manuals

CAD & dimension drawings

Certificates (7)

NCN3-F31K-N4-B13: frequently asked questions

When can NCN3-F31K-N4-B13 be shipped?

NCN3-F31K-N4-B13 is sourced on request — request a quote and we'll confirm the exact availability and shipping timeline for this specific unit.

Can I pick up NCN3-F31K-N4-B13 in person?

Local pickup from our Groningen, Netherlands warehouse may be possible — contact us before ordering to check availability and arrange a collection time.

Is express delivery available?

Yes — mention it when you request a quote for NCN3-F31K-N4-B13 and we'll include express shipping options in our reply.

My factory is down and I need this urgently — can you help?

For a critical breakdown, contact us directly at +31 (0)50-7110348 or sales@partnerplc.com — we can look into same-day courier or dedicated taxi/hotshot delivery for NCN3-F31K-N4-B13, subject to availability and destination.