*Image shown is a representation only. Actual product may vary.
Pepperl+Fuchs NJ3-18GK-S1N
by Pepperl+Fuchs
Read verified buyer reviews ↓OverviewThe Pepperl+Fuchs NJ3-18GK-S1N is a sophisticated M18 inductive proximity sensor, expertly crafted to deliver outstanding performance in identifying non-ferrous metallic targets. Featuring an accurate 3 mm sensing distance, this sensor maintains consistent functionality across various industrial settings, including inherently safe circuits within dangerous locations. Its robust build, adherence to demanding safety certifications, and suitability for applications up to SIL 3 per IEC 61508, establish it as an essential component for vital automation tasks where both safety and precision are paramount.Key Features Optimized for Non-Ferrous Metals: Designed for highly accurate and dependable sensing of non-ferrous materials, making it perfect for specialized uses. Accurate 3 mm Sensing Range: Provides reliable detection with flush mounting in mild steel (ST37/1.0037). NAMUR Output: Incorporates a normally open (NO) switching function, ensuring compatibility with conventional intrinsically safe control circuits. SIL 3 Certified: Appropriate for safety-critical applications requiring Safety Integrity Level 3 compliance in accordance with IEC 61508 standards. Hazardous Area Certified: ATEX and IECEx approved for deployment in Zone 0/1/20/21 (Ex i) and Zone 2/22 (Ex ec/tc) locations, guaranteeing safety in explosive environments. IP68 Environmental Protection: The highly durable housing provides superior resistance against dust and water ingress, ideal for challenging industrial conditions. Broad Operating Temperature Range: Maintains optimal operation in ambient temperatures from -25°C to 100°C (-13°F to 212°F). Compact M18 Form Factor: A streamlined M18 threaded cylindrical housing, with a length of 39 mm, permits effortless integration into existing systems and confined areas. Flexible Connectivity: Supplied with a robust 2-meter silicone cable for adaptable and secure setup. Technical Specifications Model Designation: NJ3-18GK-S1N Switching Functionality: Normally open (NO) Output Configuration: NAMUR with safety feature Nominal Operating Distance (sn): 3 mm Guaranteed Operating Distance (sa): 0 to 2.4 mm Actual Operating Distance (sr): Typically 2.7 to 3.3 mm Reduction Factors: Aluminum (rAl): 1 Copper (rCu): 1 Stainless Steel 304 (r304): 0 Nominal Voltage (Uo): 8.2 V (Ri approximately 1 kΩ) Switching Frequency (f): 0 to 200 Hz Current Consumption: Target Not Identified: ≤ 1 mA Target Identified: ≥ 3 mA Housing Material: Crastin (PBT), black Sensing Face Material: Crastin (PBT), black Ingress Protection: IP68 Cable Details: Diameter: 6.8 mm ± 0.2 mm Material: Silicone Conductor Cross Section: 0.75 mm² Length: 2 meters Dimensions: Length: 39 mm Diameter: 18 mm Certifications: IECEx Certifications: Equipment protection levels Ga, Gb, Gc (ec), Da, Dc (tc), Mb ATEX Certifications: Equipment protection levels Ga, Gb, Gc (ec), Da, Dc (tc) UL Certification: cULus Listed for General Purpose and Hazardous Locations CCC Certification: Approved for hazardous locations ApplicationsThe Pepperl+Fuchs NJ3-18GK-S1N inductive sensor is highly adaptable and proven across a variety of demanding sectors: Chemical Processing: Ensures dependable and safe sensing of non-ferrous metallic components in corrosive and hazardous chemical environments. Oil and Gas Sector: Essential for accurate object detection in explosive atmospheres, boosting safety and operational efficiency in drilling, refining, and transportation uses. Pharmaceutical Manufacturing: Provides precise and hygienic detection in cleanroom environments where non-ferrous materials are commonly employed. Food and Beverage: Well-suited for applications requiring robust and washdown-resistant sensors for non-ferrous metal detection in processing and packaging lines. Mining Operations: Delivers resilient and reliable performance in harsh mining conditions, appropriate for sensing the presence of non-ferrous components in machinery. Why ChooseThe Pepperl+Fuchs NJ3-18GK-S1N stands out as an outstanding option for anyone seeking a high-performance inductive sensor with exceptional capabilities.Order NowEnhance your industrial automation with the reliable and precise Pepperl+Fuchs NJ3-18GK-S1N inductive sensor. Contact us today for pricing and availability, or to discuss how this advanced sensor can meet your specific application needs.FAQWhat types of materials can the NJ3-18GK-S1N detect?This sensor is specifically engineered for the accurate and reliable detection of non-ferrous metals, making it ideal for specialized applications.Is this sensor suitable for hazardous environments?Yes, the NJ3-18GK-S1N is ATEX and IECEx certified for use in Zone 0/1/20/21 (Ex i) and Zone 2/22 (Ex ec/tc) locations, ensuring safety in explosive atmospheres.What is the sensing range of the NJ3-18GK-S1N?It provides a precise 3 mm sensing range, delivering consistent detection with flush installation in mild steel (ST37/1.0037).What is the operating temperature range for this sensor?The sensor maintains optimal performance in ambient temperatures from -25°C to 100°C (-13°F to 212°F).What is the degree of environmental protection for the NJ3-18GK-S1N?It features IP68 environmental protection, providing superior resistance against dust and water ingress, making it suitable for demanding industrial conditions.
USA — Free FedEx Priority & UPS Ground · Worldwide shipping available
For more quantity please contact Customer Service
Fast Shipping
Dispatched quickly on in-stock items via UPS, FedEx & DHL worldwide.
Availability
Thousands of parts in stock — ready for immediate dispatch from Florida.
Payment Flexibility
AMEX, Visa, MasterCard, PayPal, Discover and wire transfer accepted.
Pepperl+Fuchs NJ3-18GK-S1N
Overview
This is a genuine Pepperl+Fuchs component from the Inductive & Capacitive Sensors family. PalmPartsSolution stocks it in new, refurbished, and surplus condition with tested warranty and same-day shipping on in-stock units.
Whether you are sourcing a like-for-like replacement for an existing installation, an emergency spare to keep a line running, or a qualified part for a new build, our team can confirm availability, revision, and lead time before you order.
Key Features
- Genuine Pepperl+Fuchs catalog part
- Tested before shipment
- Backed by PalmPartsSolution warranty
- Cross-reference and revision assistance available
- Compatible with the broader Pepperl+Fuchs automation ecosystem
- Engineered to integrate inside Inductive & Capacitive Sensors installations
Compatibility
When ordering, match the full catalog/part number, hardware revision, and firmware revision called out by your Pepperl+Fuchs equipment. Where applicable, confirm:
- Input/output voltage and current rating
- Communication protocol and network role
- Mounting form factor and footprint
- Operating temperature, humidity, and IP rating
- Required certifications (UL, CE, ATEX, marine, etc.)
Not sure which revision you need? Send us the catalog number on the nameplate and we will confirm the correct match.
Replacement Information
Three ways to source this part through PalmPartsSolution:
- Exact replacement — same Pepperl+Fuchs catalog number, new or refurbished, tested and warrantied
- Form-fit-function equivalent — alternate revision or build that drops in without code changes
- Engineered migration — current-generation Pepperl+Fuchs platform with documented conversion notes for the Inductive & Capacitive Sensors family
Contact our engineering team if you need help choosing between these tracks.
Technical Specifications
- Model Designation: NJ3-18GK-S1N
- Switching Functionality: Normally open (NO)
- Output Configuration: NAMUR with safety feature
- Nominal Operating Distance (sn): 3 mm
- Guaranteed Operating Distance (sa): 0 to 2.4 mm
- Actual Operating Distance (sr): Typically 2.7 to 3.3 mm
- Reduction Factors:
- Aluminum (rAl): 1
- Copper (rCu): 1
- Stainless Steel 304 (r304): 0
- Nominal Voltage (Uo): 8.2 V (Ri approximately 1 kΩ)
- Switching Frequency (f): 0 to 200 Hz
- Current Consumption:
- Target Not Identified: ≤ 1 mA
- Target Identified: ≥ 3 mA
- Housing Material: Crastin (PBT), black
- Sensing Face Material: Crastin (PBT), black
- Ingress Protection: IP68
- Cable Details:
- Diameter: 6.8 mm ± 0.2 mm
- Material: Silicone
- Conductor Cross Section: 0.75 mm²
- Length: 2 meters
- Dimensions:
- Length: 39 mm
- Diameter: 18 mm
- Certifications:
- IECEx Certifications: Equipment protection levels Ga, Gb, Gc (ec), Da, Dc (tc), Mb
- ATEX Certifications: Equipment protection levels Ga, Gb, Gc (ec), Da, Dc (tc)
- UL Certification: cULus Listed for General Purpose and Hazardous Locations
- CCC Certification: Approved for hazardous locations
Applications
The Pepperl+Fuchs NJ3-18GK-S1N inductive sensor is highly adaptable and proven across a variety of demanding sectors:
- Chemical Processing: Ensures dependable and safe sensing of non-ferrous metallic components in corrosive and hazardous chemical environments.
- Oil and Gas Sector: Essential for accurate object detection in explosive atmospheres, boosting safety and operational efficiency in drilling, refining, and transportation uses.
- Pharmaceutical Manufacturing: Provides precise and hygienic detection in cleanroom environments where non-ferrous materials are commonly employed.
- Food and Beverage: Well-suited for applications requiring robust and washdown-resistant sensors for non-ferrous metal detection in processing and packaging lines.
- Mining Operations: Delivers resilient and reliable performance in harsh mining conditions, appropriate for sensing the presence of non-ferrous components in machinery.
Why Choose the NJ3-18GK-S1N?
The Pepperl+Fuchs NJ3-18GK-S1N stands out as an outstanding option for anyone seeking a high-performance inductive sensor with exceptional capabilities.
Availability & Shipping
- ▸In stock: NJ3-18GK-S1N ready for immediate dispatch from our Florida warehouse.
- ▸Free USA shipping: FedEx Priority (2–5 business days) and UPS Ground (3–5 business days). Expedited options available at checkout.
- ▸Worldwide delivery: FedEx International Priority (1–5 days), UPS International Priority (3–5 days), and USPS International (5–10 days) — rates calculated at checkout.
- ▸Bulk pricing: Volume discounts on request — contact our sales team for quantity quotes.
- ▸Buy with confidence: Every NJ3-18GK-S1N ships with a 1-Year PALM Parts warranty and a 30-day return window.
Frequently Asked Questions — Pepperl+Fuchs
Machine down? We ship parts the same day.
New, surplus, and refurbished Pepperl+Fuchs inventory in stock. Request a quote or speak directly with an automation specialist for emergency sourcing.
Related Pepperl+Fuchs resources
What Verified Buyers Say
No reviews yet for this product. Be the first verified buyer to share your experience — we email a review invitation after every purchase.
Independent Supplier Notice
PALM Parts Solution operates as an independent industrial automation supplier and is not an authorized distributor or affiliate of any listed manufacturer or brand name. Manufacturer trademarks and product names are used solely for identification purposes. Original manufacturer warranties do not apply. All products sold by PALM Parts are backed by our own 1-year warranty.
Product Condition & Firmware
All products are sold as new unless stated otherwise. Original manufacturer packaging may show signs of handling, storage, or shelf wear. Date codes and series may vary from current factory production. PALM Parts does not guarantee the presence, version, or compatibility of any firmware on PLC or automation products.