Pepperl Fuchs

Pepperl Fuchs NJ8-18GK-SN

Inductive sensor

MPN: NJ8-18GK-SN
Category: Inductive Sensors

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12-month warranty (new) · 3-month (used/refurbished)
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What is the Pepperl Fuchs NJ8-18GK-SN?

8 mm non-flush

Usable up to SIL 3 acc. to IEC 61508

Degree of protection IP68

ATEX-/IECEx-approvals for zone 0/1/20/21 (Ex i)

ATEX-/IECEx-approvals for zone 2/22 (Ex ec/tc)

Switching function: Normally closed (NC), Output type: NAMUR with safety function, Installation: non-flush, Output type: 2-wire, Thread mold: M18, Construction type: Cylindrical, thread, Series: Cylindrical type, Safety Integrity Level (SIL): SIL 3, Type of voltage: DC, Equipment protection level Ga: IECEx PTB 11.0092X, Equipment protection level Gb: IECEx PTB 11.0092X, Equipment protection level Gc (ec): IECEx TUR 21.0017X, Equipment protection level Da: IECEx PTB 11.0092X

Specifications

General specifications

Order code (Pepperl+Fuchs part number)	70133113
Switching function	Normally closed (NC)
Output type	NAMUR with safety function
Rated operating distance	8 mm sn
Installation	non-flush
Assured operating distance	0 ... 6.48 mm sa
Reduction factor rAl	0.4
Reduction factor rCu	0.3
Reduction factor r304	0.85
Safety Integrity Level (SIL)	up to SIL3 acc. to IEC 61508 Danger! In safety-related applications the sensor must be operated with a qualified fail safe interface from Pepperl+Fuchs, such as KFD2-SH-EX1. Consider the "exida Functional Safety Assessment" document which is available on www.pepperl-fuchs.com as an integral part of this product's documentation.
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 ... 200 Hz f
Current consumption: Measuring plate not detected	≥ 3 mA
Current consumption: Measuring plate detected	≤ 1 mA

Functional safety related parameters

Safety Integrity Level (SIL)	SIL 3
MTTFd	11850 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
Standard conformity: Standards	EN IEC 60947-5-2

Approvals and certificates

IECEx approval: Equipment protection level Ga	IECEx PTB 11.0092X
IECEx approval: Equipment protection level Gb	IECEx PTB 11.0092X
IECEx approval: Equipment protection level Gc (ec)	IECEx TUR 21.0017X
IECEx approval: Equipment protection level Da	IECEx PTB 11.0092X
IECEx approval: Equipment protection level Dc (tc)	IECEx TUR 21.0018X
IECEx approval: Equipment protection level Mb	IECEx PTB 11.0092X
ATEX approval: Equipment protection level Ga	PTB 00 ATEX 2049 X
ATEX approval: Equipment protection level Gb	PTB 00 ATEX 2049 X
ATEX approval: Equipment protection level Gc (ec)	TÜV 20 ATEX 8523 X
ATEX approval: Equipment protection level Da	PTB 00 ATEX 2049 X
ATEX approval: Equipment protection level Dc (tc)	TÜV 20 ATEX 8524 X
UL approval	cULus Listed Load Type: Resistive 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	116-0454
CCC approval: Hazardous Location	2020322315002308 2024322315005947 2024322315005860

Ambient conditions

Ambient temperature

-40 ... 100 °C (-40 ... 212 °F)

Mechanical specifications

Connection type	cable
Housing material	Crastin (PBT), black
Sensing face	Crastin (PBT), black
Degree of protection	IP68
Cable: Cable diameter	6 mm ± 0.2 mm
Cable: Bending radius	> 10 x cable diameter
Cable: Material	silicone
Cable: Core cross section	0.75 mm2
Cable: Length	2 m L
Dimensions: Length	39 mm
Dimensions: Diameter	18 mm

General information

Scope of delivery	Supplied with 2 nuts
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 (10)

NJ8-18GK-SN: frequently asked questions

When can NJ8-18GK-SN be shipped?

NJ8-18GK-SN 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 NJ8-18GK-SN 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 NJ8-18GK-SN 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 NJ8-18GK-SN, subject to availability and destination.