Pepperl+Fuchs NJ4-12GK-N

Inductive sensor
SKU: NJ4-12GK-N
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The inductive sensor is designed for non-contact detection of metallic objects, suitable for various industrial applications. With a rated operating distance of 4 mm and a robust housing diameter of 12 mm, it offers reliable performance in demanding environments.

All description
Manufacturer: Pepperl+Fuchs
Description:

Inductive proximity sensors are essential components in automation and control systems, providing precise non-contact sensing capabilities for metallic objects. These sensors operate based on the principle of electromagnetic induction, allowing them to detect changes in the electromagnetic field caused by the presence of conductive materials. They are commonly used in applications such as position sensing, object detection, and automation tasks across various industries including manufacturing, logistics, and robotics.

Constructed with durable PBT housing and designed for non-flush installation, these sensors ensure reliable operation even in harsh conditions. The sensors feature a 2-wire output configuration suitable for direct connection to control systems, and their DC voltage compatibility makes them versatile for integration into diverse setups. The robust design and effective sensing range make them ideal for tasks where precise detection is crucial, such as in assembly lines or material handling systems.

General specifications
Switching element function NAMUR, NC
Rated operating distance 4 mm
Installation non-flush
Output polarity NAMUR
Assured operating distance 0 … 3.24 mm
Reduction factor rAl 0.4
Reduction factor rCu 0.3
Reduction factor r304 0.85
Nominal ratings
Nominal voltage 8.2 V (Ri approx. 1 kOm)
Switching frequency 0 … 1500 Hz
Current consumption
Measuring plate not detected min. 3 mA
Measuring plate detected less than or equal to 1 mA
Functional safety related parameters
MTTFd 11774 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
Approvals and certificates
FM approval
Control drawing 116-0165F
UL approval cULus Listed, General Purpose
CSA approval cCSAus Listed, General Purpose
CCC approval CCC approval / marking not required for products rated less than or equal to 36 V
Ambient conditions
Ambient temperature -25 … 100 °C (-13 … 212 °F)
Mechanical specifications
Connection type cable PVC , 2 m
Core cross-section 0.34 mm2
Housing material PBT
Sensing face PBT
Housing diameter 12 mm
Degree of protection IP66 / IP68
General information
Use in the hazardous area see instruction manuals
Category 2G- 1D
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