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Pepperl Fuchs NCN3-F31K2-N5-B33-S
Inductive sensor
- MPN
- NCN3-F31K2-N5-B33-S
- Category
- Inductive Sensors
Price and lead time confirmed within 1 business day
Discontinued by Pepperl Fuchs — we can still source the original NCN3-F31K2-N5-B33-S (new, used or refurbished, subject to availability). Request a quote below.
Request a Quote
- 1We check stock, condition and lead time
- 2You get a written quote by email
- 3Approve it and we ship — in-stock parts within 1 business day
- 12-month warranty (new) · 3-month (used/refurbished)
- 30-day returns, no restocking fee on unused parts
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What is the Pepperl Fuchs NCN3-F31K2-N5-B33-S?
Direct mounting on standard actuators
ATEX & IECEX certifications
Usable up to SIL 2 acc. to IEC 61508
Weatherproof housing for outdoor applications
LEDs for switching state of sensor and solenoid valve
Plug-in terminals
2:1 transfer method
Temperature range -40 ... 100 °C (-40 ... 212 °F)
2 solenoid valves can be connected
Extended temperature range, Valve position detection, Solenoid valve output, 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 TUR 17.0055X, Equipment protection level Gb: IECEx TUR 17.0055X
Pepperl+Fuchs has archived the NCN3-F31K2-N5-B33-S: it is no longer part of the current range. PartnerPLC sources discontinued Pepperl+Fuchs parts on the surplus market for maintenance and repair of existing installations — request a quote for availability, condition, price and lead time.
Specifications
General specifications
| Order code (Pepperl+Fuchs part number) | 243640 |
| 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 For assured operating distance sar see Manual Functional Safety. 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 | 0.4 |
| Reduction factor rCu | 0.4 |
| Reduction factor r304 | 0.7 |
| Reduction factor rSt37 | 1 |
| Reduction factor rBrass | 0.5 |
| Output type | 2-wire |
| Lifecycle | Discontinued — archived by Pepperl+Fuchs |
Nominal ratings
| Nominal voltage | 8.2 V (Ri approx. 1 kΩ) Uo |
| Switching frequency | 0 ... 3 kHz f |
| Hysteresis | typ. 5 % H |
| 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 |
| Valve status indicator | LED, yellow |
Functional safety related parameters
| Safety Integrity Level (SIL) | SIL 2 |
| MTTFd | 1730 a |
| Mission Time (TM) | 20 a |
| Diagnostic Coverage (DC) | 0 % |
Valve circuit
| Voltage | max. 32 V DC |
| Current | max. 240 mA |
| Short-circuit protection | no |
| Reverse polarity protection | yes, with reversed output LED is out of function, therfore more power for solenoid valve |
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 TUR 17.0055X |
| IECEx approval: Equipment protection level Gb | IECEx TUR 17.0055X |
| IECEx approval: Equipment protection level Mb | IECEx TUR 17.0055X |
| ATEX approval: Equipment protection level Ga | TÜV 17 ATEX 8125 X |
| ATEX approval: Equipment protection level Gb | TÜV 17 ATEX 8125 X |
| ATEX approval: Equipment protection level Gc (ic) | PF13CERT2895 X |
| UL approval | cULus Listed Load Type: General Purpose Circuitry: Class 2 Power Source Enclosure Type Rating: Type 1 Supply/Switching Voltage: 30 V DC |
| Ordinary Location | E87056 |
| Hazardous Location | E501628 |
| Control drawing | 116-0455 |
| CCC approval: Hazardous Location | 2020322315002305 |
| KCC approval: Hazardous Location | 23-AV4BO-0113X |
Ambient conditions
| Ambient temperature | -40 ... 100 °C (-40 ... 212 °F) |
| Storage temperature | -40 ... 100 °C (-40 ... 212 °F) |
Mechanical specifications
| Connection type | screw terminals |
| Connection (system side) | Screw terminals, tightening torque min. 0.5 Nm Stripped length 7 mm , M20 x 1.5 cable gland , usable thread length 13.5 mm , screw-in depth max. 13.5 mm |
| Core cross section (system side) | rigid: 0.14 ... 2.5 mm2 flexible: 0.14 ... 1.5 mm2 flexible with core-end sleeve: 0.25 ... 1.5 mm2 |
| Connection (valve side) | 4-pin, M12 x 1 socket |
| Core cross section (valve side) | like core cross section (system side) |
| Housing material | rugged, translucent polycarbonate (PC) optimised for outdoor use |
| Housing base | PC |
| Degree of protection | IP66 / IP67 / IP69 |
| Tightening torque, fastening screws | ≤ 5 Nm |
| Tightening torque, housing screws | 1.5 Nm |
| Tightening torque, cable gland | M20 x 1.5 ; ≤ 7 Nm |
| Tightening torque, stopping plug | 1 Nm |
| Dimensions: Height | 53 mm |
| Dimensions: Width | 100 mm |
| Dimensions: Length | 106 mm |
| Note | LED switch-off |
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 (6)
- KR KOSHA Ex ia (23-AV4BO-0113X)
- China SITIIAS CCC Ex Certificate (2020322315002305 (Pepperl+Fuchs Manufacturing s.r.o))
- EU TUV Rheinland ATEX ia 2G, 1G, 1D s. certificate (TÜV 17 ATEX 8125 X)
- Canada USA UL Hazardous Location (E501628:1:5)
- EU Pepperl+Fuchs ATEX Category 3 G Certificate Ex ic (PF13CERT2895X)
- Canada USA UL Ordinary Location (UL-US-2016797-0 / UL-CA-2013375-0)
NCN3-F31K2-N5-B33-S: frequently asked questions
Can I still buy the NCN3-F31K2-N5-B33-S now that it is discontinued?
Yes. Pepperl Fuchs has discontinued the NCN3-F31K2-N5-B33-S, but sourcing discontinued parts is what PartnerPLC specialises in — new old stock, used and refurbished units. Request a quote and we'll confirm availability, condition and lead time.
When can NCN3-F31K2-N5-B33-S be shipped?
NCN3-F31K2-N5-B33-S 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-F31K2-N5-B33-S 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-F31K2-N5-B33-S 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-F31K2-N5-B33-S, subject to availability and destination.
More Pepperl Fuchs parts
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