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From Fortune 500 enterprises to innovative startups, leading companies choose Marvo for reliable automation and control components.
"After ordering an urgent part from Marvo, I received excellent customer service and Rob was very helpful."
The Pepperl + Fuchs NBB20-U1-A2 is a high-performance inductive sensor designed for precise and reliable detection of metallic objects. This sensor features a robust and versatile design, making it suitable for a wide range of industrial applications. With a rated operating distance of 20 mm and flush installation capability, it ensures accurate and consistent performance in various environments.
The NBB20-U1-A2 operates on a 4-wire DC system and offers both Normally Open (NO) and Normally Closed (NC) switching functions, providing flexibility in integration. It is equipped with four LEDs for 360° visibility, allowing for easy status monitoring from any angle. The sensor is designed to withstand harsh conditions, with an operating temperature range of -25 to 100 °C (-13 to 212 °F) and a high degree of protection rated at IP68/IP69K.
Constructed with durable PA/metal housing and an epoxy powder coating, the NBB20-U1-A2 is built to last in demanding industrial settings. It also features reverse polarity protection and short-circuit protection, ensuring reliable operation and longevity. The sensor's compact dimensions (118 mm length, 40 mm width, and 40 mm height) and screw terminal connections make it easy to install and integrate into existing systems.
Ideal for applications requiring precise metal detection, the Pepperl + Fuchs NBB20-U1-A2 inductive sensor is a dependable choice for enhancing automation and control processes in industrial environments.
| Specification | Description |
|---|---|
| Part Number | NBB20-U1-A2 |
| Manufacturer | Pepperl + Fuchs |
| Category | Inductive Sensor |
| Switching Element Function | PNP NO/NC |
| Rated Operating Distance | 20 mm |
| Installation | Flush |
| Output Polarity | DC |
| Assured Operating Distance | 0 ... 16.2 mm |
| Reduction Factor (Al) | 0.33 |
| Reduction Factor (Cu) | 0.31 |
| Reduction Factor (304) | 0.74 |
| Operating Voltage | 10 ... 30 V DC |
| Switching Frequency | 0 ... 150 Hz |
| Hysteresis | Typ. 5% |
| Reverse Polarity Protection | Yes |
| Short-Circuit Protection | Pulsing |
| Voltage Drop | ≤ 2 V |
| Operating Current | 0 ... 200 mA |
| Off-State Current | 0 ... 0.5 mA |
| No-Load Supply Current | ≤ 20 mA |
| Time Delay Before Availability | 80 ms |
| Operating Voltage Indicator | LED, green |
| Switching State Indicator | LED, yellow |
| MTTFd | 1230 years |
| Mission Time (TM) | 20 years |
| Diagnostic Coverage (DC) | 0% |
| Ambient Temperature | -25 ... 85 °C (-13 ... 185 °F) |
| Storage Temperature | -40 ... 85 °C (-40 ... 185 °F) |
| Connection Type | Screw terminals |
| Core Cross-Section | ≤ 2.5 mm² |
| Housing Material | PA/metal with epoxy powder coating |
| Sensing Face | PA |
| Housing Base | Plastic |
| Degree of Protection | IP68 / IP69K |
| Mass | 225 g |
| Dimensions | Height: 40 mm, Width: 40 mm, Length: 118 mm |
| Tightening Torque (Housing) | 1.8 Nm |
| Tightening Torque (Screw Terminal) | 1.0 Nm |
| Standard Conformity | EN 60947-5-2:2007, IEC 60947-5-2:2007 |
| UL Approval | cULus Listed, General Purpose |
| CSA Approval | cCSAus Listed, General Purpose |
| CCC Approval | CCC approval / marking not required for products rated ≤36 V |
| Features | Sensor head bidirectional and rotatable, 4 LEDs indicator for 360° visibility, 20 mm flush, 4-wire DC |
| Accessories | V1-M20-80 Receptacles, M12/M20; plastic version, MHW 01 Modular mounting bracket, MH 04-2681F Mounting aid for VariKont, +U1+ and +U9* |
Absolutely fantastic service. Rob was very helpful. Great communication. The requested part was shipped in no time.Konrad Eliaszuk
Found the component I was looking for at a great price. Excellent support from the staff as I was paying by wire transfer. Fast delivery and very good packaging.Adriano Tiberi
Found the part we needed at the best price. I spoke with Rob to make sure it was actually in stock, as many companies don’t really have it available to ship. It was ready, checked, and shipped, and we received it within a few days from their German stock. Would definitely use again and recommend.Chris Sentance
First time working with Marvo. They had what I needed, took great care of me, and got my order out right away. I was very impressed with the service and the person I spoke with. I will definitely work with them again in the future.Robert Cohen
After ordering an urgent part from Marvo, I received excellent customer service and Rob was very helpful.Claire Hinchliff
Excellent service, especially from Mark, who stayed late to make sure the part arrived the same day since it was a critical component for me, even though it was my first time using Marvo. I will definitely use them again.Josh Holt
Extremely helpful. They shipped me a replacement unit the next day, and I was up and running within 24 hours. A brand-new replacement from the machinery manufacturer would have had a 7-day lead time.Sean Conlin
First time working with Marvo. They had what I needed, took great care of me, and got my order out right away. I was very impressed with the service and the person I spoke with. I will definitely work with them again in the future.Robert Cohen
After ordering an urgent part from Marvo, I received excellent customer service and Rob was very helpful.Claire Hinchliff
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