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Pepperl Fuchs NBB20-U4-UU
Inductive sensor
- MPN
- NBB20-U4-UU
- Category
- Inductive Sensors
Price and lead time confirmed within 1 business day
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- 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 NBB20-U4-UU?
Sensor head bidirectional and rotatable
NO/NC selectable
Metal base with ground connection
Switching function: Normally open/closed (NO/NC), Output type: Two-wire, Installation: flush, Output polarity: AC/DC, Output type: 2-wire, Construction type: Rectangular, Series: VariKont ®, Switching frequency: AC, 0 ... 30 Hz, DC, 0 ... 100 Hz, Rated operating voltage: 24 ... 250 V DC / 24 ... 230 V AC, Operating voltage: 20 ... 275 V DC / 20 ... 253 V AC, Connection type: terminal compartment, Housing material: PA 6.6 / metal, Degree of protection: IP67
Specifications
General specifications
| Order code (Pepperl+Fuchs part number) | 248043 |
| Switching function | Normally open/closed (NO/NC) |
| Output type | Two-wire |
| Rated operating distance | 20 mm sn |
| Installation | flush |
| Output polarity | AC/DC |
| Assured operating distance | 0 ... 16.2 mm sa |
| Actual operating distance | 18 ... 22 mm sr |
| Reduction factor rAl | 0.4 |
| Reduction factor rCu | 0.3 |
| Reduction factor r304 | 0.77 |
| Reduction factor rFe | 1 |
| Reduction factor rBrass | 0.43 |
| Output type | 2-wire |
| Lifecycle | Active (current Pepperl+Fuchs product) |
Nominal ratings
| Switching frequency | AC, 0 ... 30 HzDC, 0 ... 100 Hz f |
| Hysteresis | 1 ... 10 % typ. 5 % H |
| Reverse polarity protection | reverse polarity tolerant |
| Short-circuit protection | pulsing |
| Voltage drop | ≤ 5 V (typ. 2V) DC operation ≤ 8 V (typ. 3 V) AC operation Ud |
| Momentary current (20 ms, 0.1 Hz) | 0 ... 3000 mA |
| Operating current | 5 ... 500 mA IL |
| Rated operating current | 500 mA 50/60 Hz Ie |
| Lowest operating current | 5 mA Im |
| Off-state current | ≤ 1.5 mA Ir |
| Usage category | AC12 , AC140 , DC12 , DC13 |
| Time delay before availability | ≤ 300 ms tv |
| Operating voltage indicator | LED, green |
| Switching state indicator | LED, yellow |
| Error indicator | flashes when overcurrent |
Functional safety related parameters
| MTTFd | 540 a |
Safety-relevant product characteristics
| MTTFd | 540 a |
| Mission Time (TM) | 20 a |
| Diagnostic Coverage (DC) | 0 % |
Electrical specifications
| Rated operating voltage | 24 ... 250 V DC / 24 ... 230 V AC Ue |
| Operating voltage | 20 ... 275 V DC / 20 ... 253 V AC UB |
Compliance with standards and directives
| Standard conformity: Standards | EN IEC 60947-5-2 |
Approvals and certificates
| Protection class | I |
| Rated insulation voltage | 250 V Ui |
| Rated impulse withstand voltage | 2.5 kV Uimp |
| UL approval | cULus Listed Load Type: General Purpose Enclosure Type Rating: Type 1 Supply/Switching Voltage: 250 V AC / 273 V DC Output Switching Current: 500 mA Further UL information see section "Additional Information" |
| CCC approval | Ue 75 V DC - 250 V DC Ue 75 V AC - 230 V AC |
Ambient conditions
| Ambient temperature | -25 ... 85 °C (-13 ... 185 °F) |
| Storage temperature | -25 ... 85 °C (-13 ... 185 °F) |
| Pollution degree | 3 |
Mechanical specifications
| Connection type | terminal compartment |
| Information for connection | A maximum of two conductors with the same core cross section may be mounted on one terminal connection! tightening torque 1.2 Nm + 10 % |
| Core cross section | up to 2.5 mm2 |
| Minimum core cross-section | without wire end ferrules 0.5 mm2 , with connector sleeves 0.34 mm2 |
| Maximum core cross-section | without wire end ferrules 2.5 mm2 , with connector sleeves 1.5 mm2 |
| Housing material | PA 6.6 / metal |
| Sensing face | PA 6.6 |
| Housing base | metal / class I equipment with ground connection |
| Degree of protection | IP67 |
| Mass | 280 g |
| Dimensions: Height | 40 mm |
| Dimensions: Width | 40 mm |
| Dimensions: Length | 118 mm |
| Note | Tightening torque: 1.8 Nm (housing) |
No matching specifications
Downloads & documentation
Official documents from Pepperl Fuchs, downloaded directly from the manufacturer.
Data sheets & manuals
CAD & dimension drawings
NBB20-U4-UU: frequently asked questions
When can NBB20-U4-UU be shipped?
NBB20-U4-UU 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 NBB20-U4-UU 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 NBB20-U4-UU 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 NBB20-U4-UU, subject to availability and destination.
More Pepperl Fuchs parts
Pepperl Fuchs NBB20-U4-UUPrice and lead time confirmed within 1 business day
Request a Quote