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Flush-mountable inductive proximity sensor with NAMUR NC output, 1.5mm operating distance, and SIL 2 certification for demanding industrial automation and safety applications.
Product Overview
The Pepperl+Fuchs NJ1.5-8GM-N is a high-performance inductive proximity sensor featuring NAMUR output with normally closed switching function and SIL 2 certification according to IEC 61508.
Constructed with a stainless steel (AISI 303) housing and PBT sensing face, this sensor delivers exceptional durability in harsh industrial environments. With IP66/IP67 protection rating and an operating temperature range of -25°C to +100°C, it withstands challenging conditions.
NAMUR sensors must be operated with approved switch amplifiers (e.g., Pepperl+Fuchs K-System isolated barriers).
Key Specifications
Model
NJ1,5-8GM-N
Brand
Pepperl+Fuchs
Product Type
Inductive proximity sensor / NAMUR sensor
Switching Function
Normally closed (NC)
Output Type
NAMUR (2-wire)
Rated Operating Distance
1.5 mm
Installation
Flush (shielded)
Assured Operating Distance
0 ... 1.215 mm
Nominal Voltage
8.2 V (Ri approx. 1 kΩ)
Switching Frequency
0 ... 5000 Hz
Safety Integrity Level (SIL)
SIL 2 acc. to IEC 61508
MTTFd
11774 years
Ambient Temperature
-25 ... 100 °C (-13 ... 212 °F)
Housing Material
Stainless steel 1.4305 / AISI 303
Sensing Face Material
PBT
Degree of Protection
IP66 / IP67
Connection Type
Cable, PVC, 2 m
Diameter
8 mm
Length
22 mm
Key Features
High-Performance Sensing
1.5 mm flush mounting – Shielded design allows embedding in metal
5000 Hz switching frequency – High-speed detection capability
Normally closed (NC) switching function – Failsafe operation
NAMUR Output (2-Wire)
NAMUR output according to EN 60947-5-6 / IEC 60947-5-6
2-wire connection – Standardized wiring for intrinsic safety applications
Must be operated with approved NAMUR switch amplifiers
SIL 2 Functional Safety
SIL 2 certified according to IEC 61508 – Suitable for safety-related applications
High MTTFd of 11,774 years ensures exceptional reliability
UL approval: E501628 (Hazardous Location) / E87056 (Ordinary Location)
CCC approval: 2020322315002256
NEPSI approval: GYJ16.1393X
Suitable for use in Zone 0, 1, 2 (gas) and Zone 20, 21, 22 (dust) hazardous areas
Material Reduction Factors
Material
Reduction Factor
Aluminum (rAl)
0.4
Copper (rCu)
0.3
Stainless steel (r304)
0.85
Output Characteristics
This sensor features NAMUR output with normally closed (NC) switching function:
Condition
Output Signal
Target not detected (no metal)
Current consumption ≥ 3 mA
Target detected (metal present)
Current consumption ≤ 1 mA
This output type must be connected to an approved NAMUR switch amplifier (isolated barrier) for proper operation. The switch amplifier converts the NAMUR signal to a standard industrial output for connection to PLCs and control systems.
Applications
Industry
Application Examples
Oil & Gas
Position monitoring, level detection in hazardous areas
Chemical / Pharmaceutical
Valve position feedback, tank level monitoring
Process Automation
Equipment position detection, safety interlock systems
Marine / Offshore
Corrosion-resistant position sensing in harsh environments
Machine Building
End-stop detection, positioning control
Safety Instrumented Systems (SIS)
SIL2-rated limit switches for safety functions
Typical Use Cases
Position monitoring of valves, gates, and actuators in hazardous areas
End-stop detection for linear actuators and conveyors
Speed monitoring of rotating equipment (up to 5000 Hz switching frequency)
Safety interlock monitoring for machinery access doors
Compatible Switch Amplifiers (Required Accessory)
NAMUR sensors must be operated with approved switch amplifiers. Compatible Pepperl+Fuchs devices include:
Series
Models
Description
K-System
KFU8-SR-Ex1.W.LB, KFU8-SR-Ex2.W
Isolated barriers for hazardous areas
K-System
KFU8-UFC-Ex1.D
Frequency converter for NAMUR input
K-System
KFU8-USC-1.D
Signal conditioner with trip value
Contact us for amplifier recommendations based on your application requirements.
Standards & Compliance
Standard
Description
EN 60947-5-6:2000
NAMUR sensor standard
IEC 60947-5-6:1999
NAMUR sensor standard
EN IEC 60947-5-2
Proximity switch standard
IEC 61508
Functional safety – SIL 2 certified
Certifications Summary
Certification
Certificate No.
Region
ATEX
PTB 00 ATEX 2048 X
Europe
IECEx
IECEx PTB 11.0037X
International
UL
E501628 / E87056
North America
CCC
2020322315002256
China
NEPSI
GYJ16.1393X
China
ANZEx
18.3018X
Australia/New Zealand
Ordering Information
Manufacturer
Pepperl+Fuchs SE
Part Number
NJ1,5-8GM-N
Alternative Part Number
103616
Product Status
Active
Country of Origin
Indonesia
Packaging
Factory sealed box
Key Benefits
Intrinsic Safety – NAMUR output with ATEX/IECEx approval for hazardous area use (Zone 0,1,2 and 20,21,22)
Functional Safety – SIL 2 certified for safety-critical applications
Distributor/Wholesaler,Exporter,Seller,Manufacturer,Trading Company
Year Established:
2013
Total Annual:
2000000-5000000
Employee Number:
20~50
Ecer Certification：
Verified Supplier
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