Pepperl Fuchs NBN3-F31-U8-K
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Quick facts
| Availability | Confirmed on request |
| Category | Inductive Sensors |
| Lifecycle | active |
| Warranty | 12-month (new) · 3-month (used/refurbished) |
Shipping & availability
When can NBN3-F31-U8-K be shipped?
NBN3-F31-U8-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 NBN3-F31-U8-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 NBN3-F31-U8-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 NBN3-F31-U8-K, subject to availability and destination.
Inductive sensor. Switching function: 2 x normally open (NO), Installation: flush mountable, Output polarity: AC/DC, Output type: 4-wire, Construction type: Dual sensor, Series: Dual sensor, Operating voltage: 20 ... 253 V AC/DC, Connection type: cable, Housing material: PBT, Degree of protection: IP67, Material: PVC. Switching function: 2 x normally open (NO). Rated operating distance: 3 mm. Installation: flush mountable. Output polarity: AC/DC. Assured operating distance: 0 ... 2.43 mm. Reduction factor rAl: 0.45. Reduction factor rCu: 0.38. Reduction factor r304: 1. Reduction factor rSt37: 1.04. Output type: 4-wire. Operating voltage: 20 ... 253 V AC/DC. Switching frequency: 25 Hz. Hysteresis: typ. 3 %. Reverse polarity protection: yes. Short-circuit protection: yes. Voltage drop: ≤ 8 V. Operating current: 4 ... 400 mA. Off-state current: ≤ 1.7 mA. Operating voltage indicator: LED, green. Switching state indicator: LED, yellow. MTTFd: 529 a. Mission Time (TM): 20 a. Diagnostic Coverage (DC): 0 %. Standard conformity: . StandardsEN IEC 60947-5-2: . Standards: EN IEC 60947-5-2. Protection class: II. Rated insulation voltageUi253 VRated impulse withstand voltageUimp4 kV: Ui. Rated insulation voltage: 253 V. Rated impulse withstand voltage: 4 kV. UL approval: cULus Listed Load Type: Resistive Enclosure Type Rating: Type 1. CSA approval: cCSAus Listed, General Purpose. Ambient temperature: -25 ... 70 °C (-13 ... 158 °F). Connection type: cable. Housing material: PBT. Sensing face: PBT. Degree of protection: IP67. Cable: . Wire end ferrulesyesCable diameter5.2 mm ± 0.2 mmBending radius> 10 x cable diameterMaterialPVCColorgreyNumber of cores4Core cross section0.5 mm2LengthL5 m: . Wire end ferrules: yes. Cable diameter: 5.2 mm ± 0.2 mm. Bending radius: > 10 x cable diameter. Material: PVC. Color: grey. Number of cores: 4. Core cross section: 0.5 mm2. Length: 5 m. Tightening torque, fastening screws: ≤ 5 Nm. Dimensions: . Height33.5 mmWidth65 mmLength36 mm: . Height: 33.5 mm. Width: 65 mm. Length: 36 mm
Specifications
General specifications
| Switching function | 2 x normally open (NO) |
| Rated operating distance | 3 mm sn |
| Installation | flush mountable |
| Output polarity | AC/DC |
| Assured operating distance | 0 ... 2.43 mm sa |
| Reduction factor rAl | 0.45 |
| Reduction factor rCu | 0.38 |
| Reduction factor r304 | 1 |
| Reduction factor rSt37 | 1.04 |
| Output type | 4-wire |
Nominal ratings
| Operating voltage | 20 ... 253 V AC/DC UB |
| Switching frequency | 25 Hz f |
| Hysteresis | typ. 3 % H |
| Reverse polarity protection | yes |
| Short-circuit protection | yes |
| Voltage drop | ≤ 8 V Ud |
| Operating current | 4 ... 400 mA IL |
| Off-state current | ≤ 1.7 mA Ir |
| Operating voltage indicator | LED, green |
| Switching state indicator | LED, yellow |
Functional safety related parameters
| MTTFd | 529 a |
| Mission Time (TM) | 20 a |
| Diagnostic Coverage (DC) | 0 % |
Compliance with standards and directives
| Standard conformity | |
| StandardsEN IEC 60947-5-2 | Standards |
| Standards | EN IEC 60947-5-2 |
Approvals and certificates
| Protection class | II |
| Rated insulation voltageUi253 VRated impulse withstand voltageUimp4 kV | Ui Rated insulation voltage |
| Rated insulation voltage | 253 V Ui |
| Rated impulse withstand voltage | 4 kV Uimp |
| UL approval | cULus Listed Load Type: Resistive Enclosure Type Rating: Type 1 |
| CSA approval | cCSAus Listed, General Purpose |
Ambient conditions
| Ambient temperature | -25 ... 70 °C (-13 ... 158 °F) |
Mechanical specifications
| Connection type | cable |
| Housing material | PBT |
| Sensing face | PBT |
| Degree of protection | IP67 |
| Cable | |
| Wire end ferrulesyesCable diameter5.2 mm ± 0.2 mmBending radius> 10 x cable diameterMaterialPVCColorgreyNumber of cores4Core cross section0.5 mm2LengthL5 m | Wire end ferrules |
| Wire end ferrules | yes |
| Cable diameter | 5.2 mm ± 0.2 mm |
| Bending radius | > 10 x cable diameter |
| Material | PVC |
| Color | grey |
| Number of cores | 4 |
| Core cross section | 0.5 mm2 |
| Length | 5 m L |
| Tightening torque, fastening screws | ≤ 5 Nm |
| Dimensions | |
| Height33.5 mmWidth65 mmLength36 mm | Height |
| Height | 33.5 mm |
| Width | 65 mm |
| Length | 36 mm |
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