Rugged Pepperl+Fuchs NJ8-18GK-SN-10M NAMUR Sensor with 8 mm Detection and a 10 m Cable

NJ8-18GK-SN-10M is built for metal-target detection where the sensor is positioned some distance from the interface cabinet. Its 8 mm nominal range, M18 threaded body, NAMUR output, and factory-fitted 10 m silicone cable make the selected version easy to identify.

Why This Version Stands Out

• 8 mm nominal sensing distance: suitable for many valve, actuator, and machine-position targets

• 10 m integrated cable: useful when a nearby junction box is undesirable

• NAMUR normally closed output: intended for a compatible switch amplifier or safety interface

• IP68 protection: supports demanding industrial environments when the complete installation is correctly sealed

• SIL 3 capability: available within a properly designed and assessed safety loop

Three Installation Details That Affect Performance

1. Leave space around the active face.
NJ8-18GK-SN-10M is a non-flush sensor. Nearby metal can influence its electromagnetic field, so the specified free zone must be maintained.

2. Test with the real target.
The assured operating distance is up to 6.48 mm under stated conditions. Stainless steel, brass, aluminum, copper, small targets, or angled movement can reduce the usable range.

3. Protect the long cable.
Keep the 10 m cable away from sharp edges, high temperatures, repeated flexing, and power conductors. Provide strain relief so machine vibration is not transferred to the cable entry.

Safety Loop Reminder

A NAMUR sensor should not be wired directly as if it were a conventional 3-wire PLC sensor. For a safety-related application, the sensor, qualified fail-safe interface, wiring, proof-test interval, logic solver, and final response must be assessed together. Always use the current product manual and project safety documentation.

What to Send with an Inquiry

Include the exact model NJ8-18GK-SN-10M, quantity, target material, mounting photo, connected interface model, destination, and delivery deadline. If hazardous-area approval is required, also state the zone or division and the applicable gas or dust group.

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