
Pepperl Fuchs NCN3-F31-N4-K
Inductive sensor
- MPN
- NCN3-F31-N4-K
- Category
- Inductive Sensors
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What is the Pepperl Fuchs NCN3-F31-N4-K?
Direct mounting on standard actuators
Fixed setting
Usable up to SIL 2 acc. to IEC 61508
ATEX & IECEX certifications
Extended temperature range, Valve position detection, Suitable for 2:1 technology, Switching function: 2 x normally closed (NC), Output type: NAMUR, Installation: flush mountable, Output type: 2-wire, Construction type: Dual sensor, Series: Dual sensor, Suitable for 2:1 technology, Safety Integrity Level (SIL): SIL 2, Type of voltage: DC, Equipment protection level Ga: IECEx TUN 17.0021X, Equipment protection level Gb: IECEx TUN 17.0021X, Equipment protection level Da: IECEx TUN 17.0021X
Specifications
General specifications
| Order code (Pepperl+Fuchs part number) | 70133351 |
| Switching function | 2 x normally closed (NC) |
| Output type | NAMUR |
| Rated operating distance | 3 mm sn |
| Installation | flush mountable |
| Assured operating distance | 0 ... 2.4 mm sa |
| Actual operating distance | 2.7 ... 3.3 mm typ. sr |
| Actuating element | Stainless steel 1.4305 / AISI 303 8.5 mm x 8.5 mm x 0.5 mm |
| Reduction factor rAl | 0.5 |
| Reduction factor rCu | 0.4 |
| Reduction factor r304 | 1 |
| Reduction factor rSt37 | 1.3 |
| Reduction factor rBrass | 0.6 |
| Output type | 2-wire |
| Lifecycle | Active (current Pepperl+Fuchs product) |
Nominal ratings
| Nominal voltage | 8.2 V (Ri approx. 1 kΩ) Uo |
| Switching frequency | 0 ... 3 kHz f |
| Hysteresis | typ. 5 % H |
| Reverse polarity protection | reverse polarity protected |
| Short-circuit protection | yes |
| Suitable for 2:1 technology | yes , Reverse polarity protection diode not required |
| Current consumption: Measuring plate not detected | ≥ 3 mA |
| Current consumption: Measuring plate detected | ≤ 1 mA |
| Time delay before availability | ≤ 1.1 ms tv |
| Switching state indicator | LED, yellow |
Functional safety related parameters
| Safety Integrity Level (SIL) | SIL 2 |
| MTTFd | 1470 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 |
| Standard conformity: Electromagnetic compatibility | NE 21:2007 |
| Standard conformity: Standards | EN IEC 60947-5-2 |
Approvals and certificates
| IECEx approval: Equipment protection level Ga | IECEx TUN 17.0021X |
| IECEx approval: Equipment protection level Gb | IECEx TUN 17.0021X |
| IECEx approval: Equipment protection level Da | IECEx TUN 17.0021X |
| IECEx approval: Equipment protection level Mb | IECEx TUN 17.0021X |
| ATEX approval: Equipment protection level Ga | TÜV 99 ATEX 1479 X |
| ATEX approval: Equipment protection level Gb | TÜV 99 ATEX 1479 X |
| ATEX approval: Equipment protection level Da | TÜV 99 ATEX 1479 X |
| UL approval | cULus Listed Load Type: General Purpose Circuitry: Class 2 Power Source Enclosure Type Rating: Type 1 Supply/Switching Voltage: 8.2 V DC |
| Ordinary Location | E87056 |
| Hazardous Location | E501628 |
| Control drawing | 116-0456 |
| CCC approval: Hazardous Location | 2020322315002262 |
| NEPSI approval: NEPSI certificate | GYJ19.1410X |
Ambient conditions
| Ambient temperature | -25 ... 100 °C (-13 ... 212 °F) |
| Storage temperature | -40 ... 100 °C (-40 ... 212 °F) |
Mechanical specifications
| Connection (system side) | PVC cable , 5 m |
| Core cross section (system side) | 0.75 mm2 |
| Housing material | PBT |
| Sensing face | PBT |
| Degree of protection | IP66 / IP67 |
| Cable: Cable diameter | 6.8 mm ± 0.2 mm |
| Cable: Bending radius | > 10 x cable diameter |
| Tightening torque, fastening screws | ≤ 5 Nm |
| Dimensions: Height | 33.5 mm |
| Dimensions: Width | 65 mm |
| Dimensions: Length | 36 mm |
General information
| Use in the hazardous area | see instruction manuals |
No matching specifications
Downloads & documentation
Official documents from Pepperl Fuchs, downloaded directly from the manufacturer.
Data sheets & manuals
CAD & dimension drawings
Certificates (8)
- EU Declaration of Conformity (Pepperl+Fuchs)
- EU TUV Nord ATEX ia 2G, 1G, 1D s. certificate (TÜV 99 ATEX 1479 X)
- China SITIIAS CCC Ex Certificate (2020322315002262 (Pepperl+Fuchs Manufacturing s.r.o))
- India CCOE Ex ia (A/P/HQ/HN/104/5802 (P618669))
- KR KOSHA Ex ia (19-AV4BO-0028X)
- Worldwide Pepperl+Fuchs Functional Safety Certificate (PF12CERT2382G)
- Canada USA UL Ordinary Location (UL-US-2140224-1 / UL-CA-2133715-1)
- Canada USA UL Hazardous Location (E501628:1:6)
NCN3-F31-N4-K: frequently asked questions
When can NCN3-F31-N4-K be shipped?
NCN3-F31-N4-K is sourced on request — request a quote and we'll confirm the exact availability and shipping timeline for this specific unit.
Can I pick up NCN3-F31-N4-K in person?
Local pickup from our Groningen, Netherlands warehouse may be possible — contact us before ordering to check availability and arrange a collection time.
Is express delivery available?
Yes — mention it when you request a quote for NCN3-F31-N4-K and we'll include express shipping options in our reply.
My factory is down and I need this urgently — can you help?
For a critical breakdown, contact us directly at +31 (0)50-7110348 or sales@partnerplc.com — we can look into same-day courier or dedicated taxi/hotshot delivery for NCN3-F31-N4-K, subject to availability and destination.
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