Pepperl Fuchs NBN3-F31K2M-E8-B23-S-3G-3D

Inductive sensor

MPN: NBN3-F31K2M-E8-B23-S-3G-3D
Category: Inductive Sensors

Price and lead time confirmed within 1 business day

Discontinued by Pepperl Fuchs — we can still source the original NBN3-F31K2M-E8-B23-S-3G-3D (new, used or refurbished, subject to availability). Request a quote below.

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1We check stock, condition and lead time
2You get a written quote by email
3Approve it and we ship — in-stock parts within 1 business day

12-month warranty (new) · 3-month (used/refurbished)
30-day returns, no restocking fee on unused parts
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Have spare Pepperl Fuchs parts? We buy surplus →

What is the Pepperl Fuchs NBN3-F31K2M-E8-B23-S-3G-3D?

Direct mounting on standard actuators

ATEX/IECEx Zone 2/22

Rugged metal base

Weatherproof housing for outdoor applications

Plug-in terminals

1/2" NPT conduit entrance

Extended temperature range, Valve position detection, Solenoid valve output, Switching function: 2 x normally open (NO), Output type: PNP, Installation: for non-flush mounting, Output polarity: DC, Output type: 4-wire, Construction type: Dual sensor, Series: Dual sensor, Type of voltage: DC, Equipment protection level Gc: IECEx TUR 20.0062X, Equipment protection level Dc: IECEx TUR 20.0068X, Equipment protection level Gc: TÜV 20 ATEX 8592 X, Equipment protection level Dc: TÜV 20 ATEX 8598 X

Pepperl+Fuchs has archived the NBN3-F31K2M-E8-B23-S-3G-3D: it is no longer part of the current range. PartnerPLC sources discontinued Pepperl+Fuchs parts on the surplus market for maintenance and repair of existing installations — request a quote for availability, condition, price and lead time.

Specifications

General specifications

Order code (Pepperl+Fuchs part number)	70131295-0006
Switching function	2 x normally open (NO)
Output type	PNP
Rated operating distance	2.5 mm sn
Installation	for non-flush mounting
Output polarity	DC
Assured operating distance	0 ... 2.05 mm sa
Output type	4-wire
Lifecycle	Discontinued — archived by Pepperl+Fuchs

Nominal ratings

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

Safety-relevant product characteristics

MTTFd	490 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

IECEx approval: Equipment protection level Gc	IECEx TUR 20.0062X
IECEx approval: Equipment protection level Dc	IECEx TUR 20.0068X
ATEX approval: Equipment protection level Gc	TÜV 20 ATEX 8592 X
ATEX approval: Equipment protection level Dc	TÜV 20 ATEX 8598 X
CCC approval: Hazardous Location	2024322315005979 2024322315005980

Ambient conditions

Ambient temperature	-40 ... 75 °C (-40 ... 167 °F) , restriction for use in hazardous area, see instruction manual
Storage temperature	-40 ... 85 °C (-40 ... 185 °F)

Mechanical specifications

Connection type	screw terminals
Connection (system side)	1/2" NPT cable gland , ground connection with earthing screw only for wire cross-section 4 mm2, use solid wire or stranded wire with wire end ferrule
Connection (valve side)	screw terminal , Cable gland 1/2" NPT
Housing material	PC (glass-fiber-reinforced Makrolon)
Housing base	powder coated aluminum
Degree of protection	IP67 ; additional degree of protection IP66/IP69 with BT65-F31K2-RG-EN-01 and SH-F31K2-B13
Terminal assembly: Number	10
Terminal assembly: Connection type	For connection of copper wires with 7 mm dismantle length Tightening torque 0.5 ... 0.6 Nm
Terminal assembly: Type	Screw terminal block, pluggable
Terminal assembly: Terminal capacity	Conductor cross-section 0,25 ... 2,5 mm2 , flexible/rigid For Multiple-wire connection: two wires of equal cross-section per 0.25 ... 1 mm2
Tightening torque, fastening screws	≤ 5 Nm
Tightening torque, housing screws	1.5 Nm
Tightening torque, earthing screw	1.5 Nm
Tightening torque, cable gland	Refer to NEC (National Electrical Code), hand-tight then wrench tightened (max. 3 turns)
Tightening torque, stopping plug	2 Nm
Dimensions: Height	53 mm
Dimensions: Width	100 mm
Dimensions: Length	106 mm

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 (6)

NBN3-F31K2M-E8-B23-S-3G-3D: frequently asked questions

Can I still buy the NBN3-F31K2M-E8-B23-S-3G-3D now that it is discontinued?

Yes. Pepperl Fuchs has discontinued the NBN3-F31K2M-E8-B23-S-3G-3D, but sourcing discontinued parts is what PartnerPLC specialises in — new old stock, used and refurbished units. Request a quote and we'll confirm availability, condition and lead time.

When can NBN3-F31K2M-E8-B23-S-3G-3D be shipped?

NBN3-F31K2M-E8-B23-S-3G-3D 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 NBN3-F31K2M-E8-B23-S-3G-3D 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 NBN3-F31K2M-E8-B23-S-3G-3D 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 NBN3-F31K2M-E8-B23-S-3G-3D, subject to availability and destination.