Pepperl+Fuchs
Pepperl+Fuchs NBN40-U4-UU – Inductive Proximity Sensor (AC/DC)
Pepperl+Fuchs NBN40-U4-UU – Inductive Proximity Sensor (AC/DC)
Manufacturer part number: NBN40-U4-UU
Price on Availability (POA)
Contact us for pricing, availability and lead times.
ENQUIRE NOWProduct Overview
The Pepperl+Fuchs NBN40-U4-UU is a long-range 40 x 40 mm inductive proximity sensor with a 40 mm rated operating distance for non-flush mounting and a universal 2-wire AC/DC output, operating from 20 … 253 V AC or 20 … 275 V DC.
Its switching function is selectable between NO and NC, the sensor head is bidirectional and rotatable, and the metal base with ground connection gives a robust, limit-switch style installation. Terminal compartment wiring and IP67 protection suit heavy-duty industrial applications.
Key Features
- Manufacturer: Pepperl+Fuchs
- Model: NBN40-U4-UU
- Product type: Inductive Proximity Sensor (AC/DC)
- 40 mm rated operating distance, non-flush mounting
- Universal 2-wire AC/DC output
- NO/NC selectable
- Operating current up to 500 mA
- Bidirectional, rotatable sensor head
- Metal base with ground connection
- Terminal compartment wiring, IP67
Technical Specifications
| Manufacturer | Pepperl+Fuchs |
|---|---|
| Part number | NBN40-U4-UU |
| Product type | Inductive proximity sensor, 40 x 40 mm limit-switch style |
| Rated operating distance (sn) | 40 mm |
| Assured operating distance (sa) | 0 … 32.4 mm |
| Installation | Non-flush |
| Output | 2-wire AC/DC, NO/NC selectable |
| Rated operating voltage | 24 … 250 V DC / 24 … 230 V AC |
| Operating voltage range | 20 … 275 V DC / 20 … 253 V AC |
| Switching frequency | AC 0 … 30 Hz; DC 0 … 100 Hz |
| Operating current | 5 … 500 mA |
| Off-state current | ≤ 1.5 mA |
| Indicators | LED green (power), LED yellow (switching); flashes on overcurrent |
| Housing | PA 6.6 / metal base with ground connection (protection class I) |
| Connection | Terminal compartment, conductors up to 2.5 mm² |
| Dimensions | 40 x 40 x 118 mm |
| Mass | 280 g |
| Degree of protection | IP67 |
| Ambient temperature | -25 … 85 °C |
| Approvals | cULus Listed |
Specifications are taken from Pepperl+Fuchs manufacturer data. Always confirm critical values — particularly hazardous-area and functional-safety data — against the current datasheet, certificates and instruction manual before installation.
Applications
- Long-range detection on cranes and heavy machinery
- Replacing mechanical limit switches
- AC or DC control circuits
- Material handling
Installation and Compatibility
Mount on the metal base and connect the protective earth. Non-flush: keep the free zone around the sensing face clear of metal. Wire in the terminal compartment; select NO/NC as described in the manual.
Frequently Asked Questions
What is the Pepperl+Fuchs NBN40-U4-UU?
The Pepperl+Fuchs NBN40-U4-UU is a long-range 40 x 40 mm inductive proximity sensor with a 40 mm rated operating distance for non-flush mounting and a universal 2-wire AC/DC output, operating from 20 … 253 V AC or 20 … 275 V DC.
What supply does the NBN40-U4-UU need?
20 … 275 V DC / 20 … 253 V AC.
How do I get a price for the NBN40-U4-UU?
This product is sold on a price on availability basis. Use the enquiry form on this page with your quantity and application details and the Valves UK team will reply with pricing and lead time.
Technical Documentation
- Pepperl+Fuchs NBN40-U4-UU datasheet (PDF)
- NBN40-U4-UU on the Pepperl+Fuchs website (certificates, manuals and drawings)
Related Products
- Pepperl+Fuchs NBB20-U4-UU – Inductive Proximity Sensor (AC/DC)
- Pepperl+Fuchs NBN40-L2-E2-V1 – Inductive Proximity Sensor
- View the full Pepperl+Fuchs range at Valves UK
Price and Availability
Price on Availability (POA)
Contact Valves UK for pricing, product availability and technical enquiries regarding the Pepperl+Fuchs NBN40-U4-UU. Please include your required quantity and any relevant application details when submitting your enquiry.
Share

Request a Quotation
This product is supplied on a price on availability (POA) basis. Complete the form below and the Valves UK team will reply with pricing, availability and technical support.