Pepperl+Fuchs NJ5-11-N-G Inductive Proximity Sensor 5mm Non-Flush NAMUR NC 0-3000Hz Switching Frequency IP68, SIL2
Price:
negotiable
MOQ:
1
Delivery Time:
In stock
Brand:
PEPPERL+FUCHS
Product Description
Pepperl+Fuchs NJ5-11-N-G Inductive Proximity Sensor
High-performance inductive proximity sensor designed for industrial automation and safety applications with 5mm non-flush sensing range and SIL 2 functional safety rating.
Product Overview
The Pepperl+Fuchs NJ5-11-N-G is a robust inductive proximity sensor engineered for demanding industrial environments. Featuring NAMUR output and certified for hazardous areas with SIL 2 rating according to IEC 61508, this sensor delivers reliable performance in chemical, petrochemical, oil & gas, and pharmaceutical applications.
Important Note: NAMUR sensors require operation with approved switch amplifiers (e.g., Pepperl+Fuchs K-System isolated barriers) and cannot be directly connected to standard PLC inputs.
Technical Specifications
| Parameter | Specification |
|---|---|
| Model | NJ5-11-N-G |
| Brand | Pepperl+Fuchs |
| Product Type | Inductive proximity sensor / NAMUR sensor |
| Switching Function | Normally closed (NC) |
| Output Type | NAMUR (2-wire) |
| Rated Operating Distance | 5 mm |
| Installation | Non-flush |
| Assured Operating Distance | 0 ... 4.05 mm |
| Nominal Voltage | 8.2 V (Ri approx. 1 kΩ) |
| Switching Frequency | 0 ... 3000 Hz |
| Hysteresis | typ. 5% |
| Current Consumption (no target) | ≥ 3 mA |
| Current Consumption (target present) | ≤ 1 mA |
| Reduction Factor rAl | 0.4 |
| Reduction Factor rCu | 0.3 |
| Reduction Factor r304 | 0.85 |
| Suitable for 2:1 Technology | Yes |
| Safety Integrity Level (SIL) | SIL 2 acc. to IEC 61508 |
| MTTFd | 11774 years |
| Mission Time (TM) | 20 years |
| Diagnostic Coverage (DC) | 0% |
Mechanical & Environmental Specifications
| Parameter | Specification |
|---|---|
| Housing Material | Stainless steel 1.4305 / AISI 303 |
| Sensing Face Material | PVDF |
| Degree of Protection | IP68 |
| Ambient Temperature | -25°C ... 100°C (-13°F ... 212°F) |
| Connection Type | Cable, PVC, 2 m |
| Cable Diameter | 4.8 mm ± 0.2 mm |
| Cable Core Cross Section | 0.34 mm² |
| Bending Radius | > 10 x cable diameter |
| Diameter | 14 mm |
| Length | 31 mm |
| Scope of Delivery | Supplied with 2 nuts |
Key Features
High-Performance Inductive Sensing
- 5 mm non-flush sensing distance for reliable metal target detection
- 3000 Hz switching frequency for high-speed applications
- Normally closed (NC) switching function for failsafe operation
NAMUR Output (2-Wire)
- NAMUR output according to EN 60947-5-6 / IEC 60947-5-6
- 2-wire connection for intrinsic safety applications
- Requires approved NAMUR switch amplifiers
SIL 2 Functional Safety
- SIL 2 certified according to IEC 61508
- High MTTFd of 11,774 years ensures exceptional reliability
- 20-year mission time for long-term safety system deployment
Rugged Construction
- Stainless steel housing (AISI 303) for corrosion resistance
- PVDF sensing face for chemical resistance
- IP68 protection rating for dust and water immersion
- Wide temperature range (-25°C to +100°C)
Output Characteristics
| Condition | Output Signal |
|---|---|
| Target not detected | Current consumption ≥ 3 mA |
| Target detected | Current consumption ≤ 1 mA |
This NAMUR output sensor must be connected to an approved NAMUR switch amplifier (isolated barrier) for proper operation with 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 |
| Food & Beverage | Stainless steel housing for hygienic applications |
| Mining | Position detection in explosive dust atmospheres |
| Safety Instrumented Systems (SIS) | SIL2-rated limit switches for safety functions |
Compatible Switch Amplifiers
NAMUR sensors require operation 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-1.D, KFU8-UFC-Ex1.D | Frequency converters for NAMUR input |
| K-System | KFU8-UFT-2.D | Frequency converter with direction monitor |
| K-System | KFU8-USC-1.D | Signal conditioner with trip value |
Certifications & Approvals
| Certification | Certificate No. | Region |
|---|---|---|
| ATEX | PTB 00 ATEX 2048 X | Europe |
| IECEx | IECEx PTB 11.0037X | International |
| UL | cULus Listed | North America |
| CCC | 2020322315002255 | China |
| NEPSI | GYJ16.1393X | China |
| ANZEx | 18.3018X | Australia/New Zealand |
| KCC | 22-AV4BO-0036X | South Korea |
Ordering Information
| Item | Details |
|---|---|
| Manufacturer | Pepperl+Fuchs SE |
| Part Number | NJ5-11-N-G |
| Alternative Part Number | 07831S |
| Product Status | Active |
| Country of Origin | Indonesia |
| Packaging | Factory sealed box |
Technical Support
Contact us for technical specifications, volume pricing, compatible switch amplifier recommendations, installation guidance, functional safety documentation, and hazardous area application engineering support.
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Company
Shenzhen Hengyo Power Technology Co., Limited
Location
Room 2407, B Block No.145 Chengshi Zhuchang Bld, Bagua 2nd Rd, Futian Dist. Shenzhen City, China 518029
Contact Person
Vivian Chan